CVE-2026-56866 - HTTP/1 client connection desynchronization after CONNECT rejection in net/http
CVE ID :CVE-2026-56866
Published : Oct. 8, 2026, 11:17 p.m. | 3 hours, 6 minutes ago
Description :When http.Transport sends an HTTP/1 CONNECT request with a non-empty Request.Body, it writes the body directly to the connection without framing after the request headers. If the server rejects the CONNECT request with a non-2xx keep-alive response, Transport returns the connection to the idle pool. Because CONNECT requests do not have a request body, the server may interpret the trailing body bytes as a subsequent pipelined HTTP/1.1 request on the connection, leaving the pooled connection desynchronized and causing the next caller that reuses it to read the response to the injected request. In reverse proxies (including httputil.ReverseProxy) that forward CONNECT requests through a shared Transport, this can lead to cross-user response poisoning.
Severity: 0.0 | NA
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CVE ID :CVE-2026-56866
Published : Oct. 8, 2026, 11:17 p.m. | 3 hours, 6 minutes ago
Description :When http.Transport sends an HTTP/1 CONNECT request with a non-empty Request.Body, it writes the body directly to the connection without framing after the request headers. If the server rejects the CONNECT request with a non-2xx keep-alive response, Transport returns the connection to the idle pool. Because CONNECT requests do not have a request body, the server may interpret the trailing body bytes as a subsequent pipelined HTTP/1.1 request on the connection, leaving the pooled connection desynchronized and causing the next caller that reuses it to read the response to the injected request. In reverse proxies (including httputil.ReverseProxy) that forward CONNECT requests through a shared Transport, this can lead to cross-user response poisoning.
Severity: 0.0 | NA
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CVE-2026-69435 - Azure SRE Agent Elevation of Privilege Vulnerability
CVE ID :CVE-2026-69435
Published : Oct. 8, 2026, 11:17 p.m. | 3 hours, 6 minutes ago
Description :Missing authorization in Azure SRE Agent allows an authorized attacker to elevate privileges over a network.
Severity: 9.6 | CRITICAL
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CVE ID :CVE-2026-69435
Published : Oct. 8, 2026, 11:17 p.m. | 3 hours, 6 minutes ago
Description :Missing authorization in Azure SRE Agent allows an authorized attacker to elevate privileges over a network.
Severity: 9.6 | CRITICAL
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CVE-2026-77900 - Azure App Service Remote Code Execution Vulnerability
CVE ID :CVE-2026-77900
Published : Oct. 8, 2026, 11:17 p.m. | 3 hours, 6 minutes ago
Description :Missing authentication for critical function in Azure App Service allows an unauthorized attacker to execute code over a network.
Severity: 9.8 | CRITICAL
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CVE ID :CVE-2026-77900
Published : Oct. 8, 2026, 11:17 p.m. | 3 hours, 6 minutes ago
Description :Missing authentication for critical function in Azure App Service allows an unauthorized attacker to execute code over a network.
Severity: 9.8 | CRITICAL
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CVE-2026-78659 - HTTP/2 server memory exhaustion due to Trailer headers in net/http
CVE ID :CVE-2026-78659
Published : Oct. 8, 2026, 11:17 p.m. | 3 hours, 6 minutes ago
Description :When "Trailer" headers are sent by a client, the HTTP server internally uses the header values to populate the Request.Trailer map passed to the server handler. Because Request.Trailer is a map, each entry incurs memory overhead. For HTTP/2 servers, a malicious client can exploit this by sending a "Trailer" header that declares a large number of fields, causing the server to allocate a disproportionate amount of memory while bypassing Server.MaxHeaderValueCount and Server.MaxHeaderBytes limits. This exploit is not applicable for HTTP/1 servers, which do not support multiplexing a large number of requests over one TCP connection, and whose Server.MaxHeaderBytes are calculated differently.
Severity: 0.0 | NA
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CVE ID :CVE-2026-78659
Published : Oct. 8, 2026, 11:17 p.m. | 3 hours, 6 minutes ago
Description :When "Trailer" headers are sent by a client, the HTTP server internally uses the header values to populate the Request.Trailer map passed to the server handler. Because Request.Trailer is a map, each entry incurs memory overhead. For HTTP/2 servers, a malicious client can exploit this by sending a "Trailer" header that declares a large number of fields, causing the server to allocate a disproportionate amount of memory while bypassing Server.MaxHeaderValueCount and Server.MaxHeaderBytes limits. This exploit is not applicable for HTTP/1 servers, which do not support multiplexing a large number of requests over one TCP connection, and whose Server.MaxHeaderBytes are calculated differently.
Severity: 0.0 | NA
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CVE-2026-78660 - HTTP/2 transport accepts malformed framing-related headers in net/http
CVE ID :CVE-2026-78660
Published : Oct. 8, 2026, 11:17 p.m. | 3 hours, 6 minutes ago
Description :Historically, we have been rather lax about malformed framing-related headers in our HTTP/2 implementation, as they cannot interfere with HTTP/2 framing. However, this makes it possible for our HTTP/2 implementation to forward responses containing such headers to an HTTP/1 client when acting as a reverse proxy. If the HTTP/1 client also does not behave strictly enough, this can result in response smuggling.
Severity: 0.0 | NA
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CVE ID :CVE-2026-78660
Published : Oct. 8, 2026, 11:17 p.m. | 3 hours, 6 minutes ago
Description :Historically, we have been rather lax about malformed framing-related headers in our HTTP/2 implementation, as they cannot interfere with HTTP/2 framing. However, this makes it possible for our HTTP/2 implementation to forward responses containing such headers to an HTTP/1 client when acting as a reverse proxy. If the HTTP/1 client also does not behave strictly enough, this can result in response smuggling.
Severity: 0.0 | NA
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CVE-2026-78663 - Double flow control refund on HTTP/2 server streams in net/http
CVE ID :CVE-2026-78663
Published : Oct. 8, 2026, 11:17 p.m. | 3 hours, 6 minutes ago
Description :The HTTP/2 server can refund connection-level flow control twice for the same data: Once when a client resets a stream (refunding data for any sent-but-unread portion of the stream), and again when a request handler reads the buffered data. A malicious client can exploit this to bypass the configured connection-level flow control limit (MaxReceiveBufferPerConnection). Total buffered data is still limited by the concurrent stream limit and stream-level flow control.
Severity: 0.0 | NA
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CVE ID :CVE-2026-78663
Published : Oct. 8, 2026, 11:17 p.m. | 3 hours, 6 minutes ago
Description :The HTTP/2 server can refund connection-level flow control twice for the same data: Once when a client resets a stream (refunding data for any sent-but-unread portion of the stream), and again when a request handler reads the buffered data. A malicious client can exploit this to bypass the configured connection-level flow control limit (MaxReceiveBufferPerConnection). Total buffered data is still limited by the concurrent stream limit and stream-level flow control.
Severity: 0.0 | NA
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CVE-2026-78667 - Lack of limit on size of parsed Range headers in net/http
CVE ID :CVE-2026-78667
Published : Oct. 8, 2026, 11:17 p.m. | 3 hours, 6 minutes ago
Description :When parsing a Range header containing a large number of small ranges, FileServer(FS), ServeContent, and ServeFile(FS) can consume an excessive amount of CPU.
Severity: 0.0 | NA
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CVE ID :CVE-2026-78667
Published : Oct. 8, 2026, 11:17 p.m. | 3 hours, 6 minutes ago
Description :When parsing a Range header containing a large number of small ranges, FileServer(FS), ServeContent, and ServeFile(FS) can consume an excessive amount of CPU.
Severity: 0.0 | NA
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CVE-2026-78669 - Excessive CPU consumption from repeated initial window changes in net/http
CVE ID :CVE-2026-78669
Published : Oct. 8, 2026, 11:17 p.m. | 3 hours, 6 minutes ago
Description :A malicious HTTP/2 peer can cause excessive CPU consumption in the client or server by opening a large number of streams and then sending many small SETTINGS frames containing SETTINGS_INITIAL_WINDOW_SIZE values.
Severity: 0.0 | NA
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CVE ID :CVE-2026-78669
Published : Oct. 8, 2026, 11:17 p.m. | 3 hours, 6 minutes ago
Description :A malicious HTTP/2 peer can cause excessive CPU consumption in the client or server by opening a large number of streams and then sending many small SETTINGS frames containing SETTINGS_INITIAL_WINDOW_SIZE values.
Severity: 0.0 | NA
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CVE-2026-83943 - Azure API Center Information Disclosure Vulnerability
CVE ID :CVE-2026-83943
Published : Oct. 8, 2026, 11:17 p.m. | 3 hours, 6 minutes ago
Description :Exposure of sensitive information to an unauthorized actor in Azure API Center allows an unauthorized attacker to disclose information over a network.
Severity: 8.7 | HIGH
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CVE ID :CVE-2026-83943
Published : Oct. 8, 2026, 11:17 p.m. | 3 hours, 6 minutes ago
Description :Exposure of sensitive information to an unauthorized actor in Azure API Center allows an unauthorized attacker to disclose information over a network.
Severity: 8.7 | HIGH
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CVE-2026-83947 - Azure Event Grid Spoofing Vulnerability
CVE ID :CVE-2026-83947
Published : Oct. 8, 2026, 11:17 p.m. | 3 hours, 6 minutes ago
Description :Missing authorization in Azure Event Grid allows an authorized attacker to perform spoofing over a network.
Severity: 7.7 | HIGH
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CVE ID :CVE-2026-83947
Published : Oct. 8, 2026, 11:17 p.m. | 3 hours, 6 minutes ago
Description :Missing authorization in Azure Event Grid allows an authorized attacker to perform spoofing over a network.
Severity: 7.7 | HIGH
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CVE-2026-88131 - Microsoft Dataverse Remote Code Execution Vulnerability
CVE ID :CVE-2026-88131
Published : Oct. 8, 2026, 11:17 p.m. | 3 hours, 6 minutes ago
Description :Deserialization of untrusted data in Microsoft Dataverse allows an unauthorized attacker to execute code over a network.
Severity: 9.8 | CRITICAL
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CVE ID :CVE-2026-88131
Published : Oct. 8, 2026, 11:17 p.m. | 3 hours, 6 minutes ago
Description :Deserialization of untrusted data in Microsoft Dataverse allows an unauthorized attacker to execute code over a network.
Severity: 9.8 | CRITICAL
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CVE-2026-94439 - HTTP/1 server connection desynchronization after 2xx CONNECT response in net/http
CVE ID :CVE-2026-94439
Published : Oct. 8, 2026, 11:17 p.m. | 3 hours, 6 minutes ago
Description :When an HTTP server handler sends a 2xx response to an HTTP/1 CONNECT request and returns without hijacking the connection, the server improperly continues to read and serve requests from the connection. Since a 2xx response to an HTTP/1 CONNECT converts the connection into a tunnel, the server should not treat the connection as continuing to contain HTTP. The impact of this misbehavior is mostly limited to potential request smuggling, where an intermediate proxy considers the data on the connection to be tunneled and the server considers it to be HTTP.
Severity: 0.0 | NA
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CVE ID :CVE-2026-94439
Published : Oct. 8, 2026, 11:17 p.m. | 3 hours, 6 minutes ago
Description :When an HTTP server handler sends a 2xx response to an HTTP/1 CONNECT request and returns without hijacking the connection, the server improperly continues to read and serve requests from the connection. Since a 2xx response to an HTTP/1 CONNECT converts the connection into a tunnel, the server should not treat the connection as continuing to contain HTTP. The impact of this misbehavior is mostly limited to potential request smuggling, where an intermediate proxy considers the data on the connection to be tunneled and the server considers it to be HTTP.
Severity: 0.0 | NA
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CVE-2026-94440 - Memory limit bypass when parsing MIME headers in net/textproto, mime/multipart
CVE ID :CVE-2026-94440
Published : Oct. 8, 2026, 11:17 p.m. | 3 hours, 6 minutes ago
Description :Parsing a multipart form can bypass memory limits and read an arbitrarily long line into memory when the remaining limit at the start of a part is less than 400 bytes.
Severity: 0.0 | NA
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CVE ID :CVE-2026-94440
Published : Oct. 8, 2026, 11:17 p.m. | 3 hours, 6 minutes ago
Description :Parsing a multipart form can bypass memory limits and read an arbitrarily long line into memory when the remaining limit at the start of a part is less than 400 bytes.
Severity: 0.0 | NA
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CVE-2026-94444 - Checksum bypass for golang.org/fips140 in cmd/go
CVE ID :CVE-2026-94444
Published : Oct. 8, 2026, 11:17 p.m. | 3 hours, 6 minutes ago
Description :Previously, a user operating inside of a malicious Go project that defines a bogus golang.org/fips140 and operates a malicious GOMODPROXY the user chooses to connect to can serve an arbitrary module in its place. We now unpack the trusted ziphash for the bundled golang.org/fips140 module and construct its entry in the GOMODCACHE such that it can be verified by the toolchain.
Severity: 0.0 | NA
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CVE ID :CVE-2026-94444
Published : Oct. 8, 2026, 11:17 p.m. | 3 hours, 6 minutes ago
Description :Previously, a user operating inside of a malicious Go project that defines a bogus golang.org/fips140 and operates a malicious GOMODPROXY the user chooses to connect to can serve an arbitrary module in its place. We now unpack the trusted ziphash for the bundled golang.org/fips140 module and construct its entry in the GOMODCACHE such that it can be verified by the toolchain.
Severity: 0.0 | NA
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CVE-2026-94447 - Checksum database bypass for golang.org/toolchain in cmd/go
CVE ID :CVE-2026-94447
Published : Oct. 8, 2026, 11:17 p.m. | 3 hours, 6 minutes ago
Description :Previously, a user operating inside of a malicious Go project that defines a bogus golang.org/toolchain go.sum entry and operates a malicious GOMODPROXY the user chooses to use can bypass the intended checksum. We now ensure that golang.org/toolchain always goes to the network for the canonical checksum.
Severity: 0.0 | NA
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CVE ID :CVE-2026-94447
Published : Oct. 8, 2026, 11:17 p.m. | 3 hours, 6 minutes ago
Description :Previously, a user operating inside of a malicious Go project that defines a bogus golang.org/toolchain go.sum entry and operates a malicious GOMODPROXY the user chooses to use can bypass the intended checksum. We now ensure that golang.org/toolchain always goes to the network for the canonical checksum.
Severity: 0.0 | NA
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CVE-2026-94448 - Reset context tracking on consecutive template expressions in html/template
CVE ID :CVE-2026-94448
Published : Oct. 8, 2026, 11:17 p.m. | 3 hours, 6 minutes ago
Description :When a JavaScript template literal contains consecutive expressions, the context tracking state was not properly reset upon entering a new expression. We now ensure that template-literal expression entries correctly reset context variables so all subsequent regular expression literals are accurately recognized and escaped.
Severity: 0.0 | NA
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CVE ID :CVE-2026-94448
Published : Oct. 8, 2026, 11:17 p.m. | 3 hours, 6 minutes ago
Description :When a JavaScript template literal contains consecutive expressions, the context tracking state was not properly reset upon entering a new expression. We now ensure that template-literal expression entries correctly reset context variables so all subsequent regular expression literals are accurately recognized and escaped.
Severity: 0.0 | NA
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CVE-2026-94510 - Microsoft Bookings Elevation of Privilege Vulnerability
CVE ID :CVE-2026-94510
Published : Oct. 8, 2026, 11:17 p.m. | 3 hours, 6 minutes ago
Description :Authorization bypass through user-controlled key in Microsoft Bookings allows an unauthorized attacker to elevate privileges over a network.
Severity: 9.9 | CRITICAL
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CVE ID :CVE-2026-94510
Published : Oct. 8, 2026, 11:17 p.m. | 3 hours, 6 minutes ago
Description :Authorization bypass through user-controlled key in Microsoft Bookings allows an unauthorized attacker to elevate privileges over a network.
Severity: 9.9 | CRITICAL
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CVE-2026-96207 - Microsoft Partner Center Elevation of Privilege Vulnerability
CVE ID :CVE-2026-96207
Published : Oct. 8, 2026, 11:17 p.m. | 3 hours, 6 minutes ago
Description :Improper certificate validation in Microsoft Partner Center allows an unauthorized attacker to elevate privileges over a network.
Severity: 10.0 | CRITICAL
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CVE ID :CVE-2026-96207
Published : Oct. 8, 2026, 11:17 p.m. | 3 hours, 6 minutes ago
Description :Improper certificate validation in Microsoft Partner Center allows an unauthorized attacker to elevate privileges over a network.
Severity: 10.0 | CRITICAL
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CVE-2026-97030 - Recognize yield as regexp preceder keyword in html/template
CVE ID :CVE-2026-97030
Published : Oct. 8, 2026, 11:17 p.m. | 3 hours, 6 minutes ago
Description :A trusted template author may have previously written a valid template wherein the use of the 'yield' keyword would not be correctly escaped. We now ensure that valid keyword uses are escaped and non-keyword uses are not escaped.
Severity: 0.0 | NA
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CVE ID :CVE-2026-97030
Published : Oct. 8, 2026, 11:17 p.m. | 3 hours, 6 minutes ago
Description :A trusted template author may have previously written a valid template wherein the use of the 'yield' keyword would not be correctly escaped. We now ensure that valid keyword uses are escaped and non-keyword uses are not escaped.
Severity: 0.0 | NA
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CVE-2026-97031 - Reject malformed ECH outer extension references in crypto/tls
CVE ID :CVE-2026-97031
Published : Oct. 8, 2026, 11:17 p.m. | 3 hours, 6 minutes ago
Description :Multiple ECH outer extension references are not permitted under RFC 9849; previously, a client could send a well-crafted packet that could trigger memory exhaustion in the server process by specifying multiple references. We now reject these as malformed and curb the memory amplification vector as a result.
Severity: 0.0 | NA
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CVE ID :CVE-2026-97031
Published : Oct. 8, 2026, 11:17 p.m. | 3 hours, 6 minutes ago
Description :Multiple ECH outer extension references are not permitted under RFC 9849; previously, a client could send a well-crafted packet that could trigger memory exhaustion in the server process by specifying multiple references. We now reject these as malformed and curb the memory amplification vector as a result.
Severity: 0.0 | NA
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CVE-2026-97032 - HTTP/2 server crash due to HPACK encoder race in net/http
CVE ID :CVE-2026-97032
Published : Oct. 8, 2026, 11:17 p.m. | 3 hours, 6 minutes ago
Description :HTTP/2 servers could end up crashing due to inadvertently modifying its HPACK encoder concurrently. This happens because the server modifies the HPACK encoder from two goroutines without synchronization: one uses the encoder to encode a HEADERS frame as part of a response sent to a client and the other modifies the encoder's table size when handling a SETTINGS frame containing SETTINGS_HEADER_TABLE_SIZE that a client sends. A malicious client can repeatedly send a request while changing the header table size to crash the server.
Severity: 0.0 | NA
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CVE ID :CVE-2026-97032
Published : Oct. 8, 2026, 11:17 p.m. | 3 hours, 6 minutes ago
Description :HTTP/2 servers could end up crashing due to inadvertently modifying its HPACK encoder concurrently. This happens because the server modifies the HPACK encoder from two goroutines without synchronization: one uses the encoder to encode a HEADERS frame as part of a response sent to a client and the other modifies the encoder's table size when handling a SETTINGS frame containing SETTINGS_HEADER_TABLE_SIZE that a client sends. A malicious client can repeatedly send a request while changing the header table size to crash the server.
Severity: 0.0 | NA
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