🚨 CVE-2026-13602
We found a chain of combining multiple weaknesses in the product that could allow an attacker to become any user in the backend and access any data:
*
The payment integration plugins Stripe (included in the core system), pretix-mollie, pretix-oppwa, pretix-bitpay, pretix-payone, pretix-secuconnect, pretix-sofort, and pretix-saferpay
contain a code path that is intended for the transport of session
parameters from a tab with isolated cookies (e.g. in the pretix widget)
to a new tab. For this purpose, a set of session parameters is
cryptographically signed and then passed to the new tab as a URL
parameter. The plugins perform no further validation of the session
parameters, other than the cryptographic signature being valid. This is
fixed with the releases issued today by strictly validating that no
session parameters outside of the scope of the respective plugin may be
set.
*
An unrelated feature in the core system is used to generate redirect links that obfuscate any Referer
headers for outgoing links to prevent leakage of secrets in URLs. This
redirect page also requires cryptographically signed parameters.
Unfortunately, it uses the same key and salt for the signature as the
previously mentioned feature in the payment integration plugins. A
motivated attacker with access to at least one event in the backend can
trick the system into cryptographically signing arbitrary content using
specially crafted links. In combination with the previous issue, the
attacker could use this to set and modify arbitrary parameters on their
user session by injecting the signed parameters into the feature of the
payment providers. This is fixed with the releases issued today by using
different salts for the signature for each plugin and feature.
*
A third, unrelated feature in the core system is used for admin users
to act on behalf of another user, mostly for debugging purposes. With
being able to insert arbitrary parameters into a session, an attacker
can abuse this feature to change their session from their actual user to
any user in the system by guessing a valid user ID. This is fixed with
the release today by requiring unguessable information to be contained
in the session of the user to switch to.
🎖@cveNotify
We found a chain of combining multiple weaknesses in the product that could allow an attacker to become any user in the backend and access any data:
*
The payment integration plugins Stripe (included in the core system), pretix-mollie, pretix-oppwa, pretix-bitpay, pretix-payone, pretix-secuconnect, pretix-sofort, and pretix-saferpay
contain a code path that is intended for the transport of session
parameters from a tab with isolated cookies (e.g. in the pretix widget)
to a new tab. For this purpose, a set of session parameters is
cryptographically signed and then passed to the new tab as a URL
parameter. The plugins perform no further validation of the session
parameters, other than the cryptographic signature being valid. This is
fixed with the releases issued today by strictly validating that no
session parameters outside of the scope of the respective plugin may be
set.
*
An unrelated feature in the core system is used to generate redirect links that obfuscate any Referer
headers for outgoing links to prevent leakage of secrets in URLs. This
redirect page also requires cryptographically signed parameters.
Unfortunately, it uses the same key and salt for the signature as the
previously mentioned feature in the payment integration plugins. A
motivated attacker with access to at least one event in the backend can
trick the system into cryptographically signing arbitrary content using
specially crafted links. In combination with the previous issue, the
attacker could use this to set and modify arbitrary parameters on their
user session by injecting the signed parameters into the feature of the
payment providers. This is fixed with the releases issued today by using
different salts for the signature for each plugin and feature.
*
A third, unrelated feature in the core system is used for admin users
to act on behalf of another user, mostly for debugging purposes. With
being able to insert arbitrary parameters into a session, an attacker
can abuse this feature to change their session from their actual user to
any user in the system by guessing a valid user ID. This is fixed with
the release today by requiring unguessable information to be contained
in the session of the user to switch to.
🎖@cveNotify
pretix.eu
Security release 2026.5.3 of pretix and multiple plugins
Today, we are releasing pretix 2026.5.3 as well as updates for multiple plugins to fix security-relevant bugs with critical severity.
Please make sure to update your pretix installation as soon as possible.
Please make sure to update your pretix installation as soon as possible.
🚨 CVE-2026-23537
A vulnerability has been identified in the Feast Feature Server’s `/save-document` endpoint that allows an unauthenticated remote attacker to write arbitrary JSON files to the server's filesystem. Although the system attempts to restrict file locations, these protections can be bypassed, enabling an attacker to overwrite vital application configurations or startup scripts. Because this flaw requires no credentials or special privileges, any attacker with network access to the server can potentially compromise the integrity of the system. This could lead to unauthorized system modifications, denial of service through disk exhaustion, or potential remote code execution.
🎖@cveNotify
A vulnerability has been identified in the Feast Feature Server’s `/save-document` endpoint that allows an unauthenticated remote attacker to write arbitrary JSON files to the server's filesystem. Although the system attempts to restrict file locations, these protections can be bypassed, enabling an attacker to overwrite vital application configurations or startup scripts. Because this flaw requires no credentials or special privileges, any attacker with network access to the server can potentially compromise the integrity of the system. This could lead to unauthorized system modifications, denial of service through disk exhaustion, or potential remote code execution.
🎖@cveNotify
🚨 CVE-2026-6685
FatFs R0.16 and earlier exhibits a stale dirty-cache skip via unsigned-subtraction wrap in f_read() / f_write() (fp->sect - sect < cc) during interleaved read/write on fragmented filesystems. This maps to CWE-191 (Integer Underflow). Estimated CVSS v3.1 vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H (6.1, Medium). The estimated CISA SSVC vectors are Exploitation: PoC, Technical Impact: Total.
🎖@cveNotify
FatFs R0.16 and earlier exhibits a stale dirty-cache skip via unsigned-subtraction wrap in f_read() / f_write() (fp->sect - sect < cc) during interleaved read/write on fragmented filesystems. This maps to CWE-191 (Integer Underflow). Estimated CVSS v3.1 vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H (6.1, Medium). The estimated CISA SSVC vectors are Exploitation: PoC, Technical Impact: Total.
🎖@cveNotify
elm-chan.org
FatFs - Generic FAT Filesystem Module
Open source FAT filesystem for embedded projects
🚨 CVE-2025-23350
NVIDIA ConnectX and BlueField contain a vulnerability in the command interface where a local user with virtual function (VF) access may cause a write out of bounds by crafted input. A successful exploit of this vulnerability may lead to arbitrary code execution on the device.
🎖@cveNotify
NVIDIA ConnectX and BlueField contain a vulnerability in the command interface where a local user with virtual function (VF) access may cause a write out of bounds by crafted input. A successful exploit of this vulnerability may lead to arbitrary code execution on the device.
🎖@cveNotify
GitHub
product-security/2026/5699 at main · NVIDIA/product-security
Starting October 1, 2025, NVIDIA PSIRT will publish an initial set of security bulletins on GitHub in Markdown, CSAF, and CVE formats. Coverage will expand over time, while all bulletins remain ava...
🚨 CVE-2025-23351
NVIDIA ConnectX and BlueField contain a vulnerability in the command interface where a local user with virtual function (VF) access may cause a write out of bounds by crafted input. A successful exploit of this vulnerability may lead to arbitrary code execution on the device.
🎖@cveNotify
NVIDIA ConnectX and BlueField contain a vulnerability in the command interface where a local user with virtual function (VF) access may cause a write out of bounds by crafted input. A successful exploit of this vulnerability may lead to arbitrary code execution on the device.
🎖@cveNotify
GitHub
product-security/2026/5699 at main · NVIDIA/product-security
Starting October 1, 2025, NVIDIA PSIRT will publish an initial set of security bulletins on GitHub in Markdown, CSAF, and CVE formats. Coverage will expand over time, while all bulletins remain ava...
🚨 CVE-2026-13706
Improper input validation vulnerability in Wikimedia Foundation UrlShortener.
This vulnerability is associated with program files includes/UrlShortenerUtils.Php.
🎖@cveNotify
Improper input validation vulnerability in Wikimedia Foundation UrlShortener.
This vulnerability is associated with program files includes/UrlShortenerUtils.Php.
🎖@cveNotify
🚨 CVE-2026-13707
Session fixation vulnerability in Wikimedia Foundation OAuth.
This vulnerability is associated with program files src/Backend/MWOAuthServer.Php.
This issue affects OAuth: from * through 1.46.0, 1.45.4, 1.44.6, 1.43.9.
🎖@cveNotify
Session fixation vulnerability in Wikimedia Foundation OAuth.
This vulnerability is associated with program files src/Backend/MWOAuthServer.Php.
This issue affects OAuth: from * through 1.46.0, 1.45.4, 1.44.6, 1.43.9.
🎖@cveNotify
🚨 CVE-2026-24240
NVIDIA Megatron Bridge for Linux contains a vulnerability where an attacker could cause deserialization of untrusted data. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, data tampering, and information disclosure.
🎖@cveNotify
NVIDIA Megatron Bridge for Linux contains a vulnerability where an attacker could cause deserialization of untrusted data. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, data tampering, and information disclosure.
🎖@cveNotify
GitHub
product-security/2026/5841 at main · NVIDIA/product-security
Starting October 1, 2025, NVIDIA PSIRT will publish an initial set of security bulletins on GitHub in Markdown, CSAF, and CVE formats. Coverage will expand over time, while all bulletins remain ava...
🚨 CVE-2026-24242
NVIDIA Megatron Bridge for Linux contains a vulnerability where an attacker could cause server-side request forgery. A successful exploit of this vulnerability might lead to information disclosure.
🎖@cveNotify
NVIDIA Megatron Bridge for Linux contains a vulnerability where an attacker could cause server-side request forgery. A successful exploit of this vulnerability might lead to information disclosure.
🎖@cveNotify
GitHub
product-security/2026/5841 at main · NVIDIA/product-security
Starting October 1, 2025, NVIDIA PSIRT will publish an initial set of security bulletins on GitHub in Markdown, CSAF, and CVE formats. Coverage will expand over time, while all bulletins remain ava...
🚨 CVE-2026-24244
NVIDIA Megatron Bridge for Linux contains a vulnerability where an attacker could cause deserialization of untrusted data. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, data tampering, and information disclosure.
🎖@cveNotify
NVIDIA Megatron Bridge for Linux contains a vulnerability where an attacker could cause deserialization of untrusted data. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, data tampering, and information disclosure.
🎖@cveNotify
GitHub
product-security/2026/5841 at main · NVIDIA/product-security
Starting October 1, 2025, NVIDIA PSIRT will publish an initial set of security bulletins on GitHub in Markdown, CSAF, and CVE formats. Coverage will expand over time, while all bulletins remain ava...
🚨 CVE-2026-24245
NVIDIA Megatron Bridge for Linux contains a vulnerability where an attacker could cause deserialization of untrusted data. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, data tampering, and information disclosure.
🎖@cveNotify
NVIDIA Megatron Bridge for Linux contains a vulnerability where an attacker could cause deserialization of untrusted data. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, data tampering, and information disclosure.
🎖@cveNotify
GitHub
product-security/2026/5841 at main · NVIDIA/product-security
Starting October 1, 2025, NVIDIA PSIRT will publish an initial set of security bulletins on GitHub in Markdown, CSAF, and CVE formats. Coverage will expand over time, while all bulletins remain ava...
🚨 CVE-2026-24246
NVIDIA Megatron Bridge for Linux contains a vulnerability where an attacker could cause improper control of dynamically managed code resources. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, data tampering, and information disclosure.
🎖@cveNotify
NVIDIA Megatron Bridge for Linux contains a vulnerability where an attacker could cause improper control of dynamically managed code resources. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, data tampering, and information disclosure.
🎖@cveNotify
GitHub
product-security/2026/5841 at main · NVIDIA/product-security
Starting October 1, 2025, NVIDIA PSIRT will publish an initial set of security bulletins on GitHub in Markdown, CSAF, and CVE formats. Coverage will expand over time, while all bulletins remain ava...
🚨 CVE-2026-24247
NVIDIA Megatron Bridge for Linux contains a vulnerability where an attacker could cause deserialization of untrusted data. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, data tampering, and information disclosure.
🎖@cveNotify
NVIDIA Megatron Bridge for Linux contains a vulnerability where an attacker could cause deserialization of untrusted data. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, data tampering, and information disclosure.
🎖@cveNotify
GitHub
product-security/2026/5841 at main · NVIDIA/product-security
Starting October 1, 2025, NVIDIA PSIRT will publish an initial set of security bulletins on GitHub in Markdown, CSAF, and CVE formats. Coverage will expand over time, while all bulletins remain ava...
🚨 CVE-2026-24248
NVIDIA Megatron Bridge for Linux contains a vulnerability where an attacker could cause improper control of code generation. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, data tampering, and information disclosure.
🎖@cveNotify
NVIDIA Megatron Bridge for Linux contains a vulnerability where an attacker could cause improper control of code generation. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, data tampering, and information disclosure.
🎖@cveNotify
GitHub
product-security/2026/5841 at main · NVIDIA/product-security
Starting October 1, 2025, NVIDIA PSIRT will publish an initial set of security bulletins on GitHub in Markdown, CSAF, and CVE formats. Coverage will expand over time, while all bulletins remain ava...
🚨 CVE-2026-24249
NVIDIA Megatron Bridge for Linux contains a vulnerability where an attacker could cause deserialization of untrusted data. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, data tampering, and information disclosure.
🎖@cveNotify
NVIDIA Megatron Bridge for Linux contains a vulnerability where an attacker could cause deserialization of untrusted data. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, data tampering, and information disclosure.
🎖@cveNotify
GitHub
product-security/2026/5841 at main · NVIDIA/product-security
Starting October 1, 2025, NVIDIA PSIRT will publish an initial set of security bulletins on GitHub in Markdown, CSAF, and CVE formats. Coverage will expand over time, while all bulletins remain ava...
🚨 CVE-2026-24250
NVIDIA Megatron Bridge for Linux contains a vulnerability where an attacker could cause improper validation of allowed inputs. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, data tampering, and information disclosure.
🎖@cveNotify
NVIDIA Megatron Bridge for Linux contains a vulnerability where an attacker could cause improper validation of allowed inputs. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, data tampering, and information disclosure.
🎖@cveNotify
GitHub
product-security/2026/5841 at main · NVIDIA/product-security
Starting October 1, 2025, NVIDIA PSIRT will publish an initial set of security bulletins on GitHub in Markdown, CSAF, and CVE formats. Coverage will expand over time, while all bulletins remain ava...
🚨 CVE-2026-24251
NVIDIA Megatron Bridge for Linux contains a vulnerability where an attacker could cause improper control of dynamically managed code resources. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, data tampering, and information disclosure.
🎖@cveNotify
NVIDIA Megatron Bridge for Linux contains a vulnerability where an attacker could cause improper control of dynamically managed code resources. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, data tampering, and information disclosure.
🎖@cveNotify
GitHub
product-security/2026/5841 at main · NVIDIA/product-security
Starting October 1, 2025, NVIDIA PSIRT will publish an initial set of security bulletins on GitHub in Markdown, CSAF, and CVE formats. Coverage will expand over time, while all bulletins remain ava...
🚨 CVE-2026-24260
NVIDIA Container Toolkit for Linux contains a vulnerability where an attacker could cause a time-of-check time-of-use race condition. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, and data tampering.
🎖@cveNotify
NVIDIA Container Toolkit for Linux contains a vulnerability where an attacker could cause a time-of-check time-of-use race condition. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, and data tampering.
🎖@cveNotify
GitHub
product-security/2026/5850 at main · NVIDIA/product-security
Starting October 1, 2025, NVIDIA PSIRT will publish an initial set of security bulletins on GitHub in Markdown, CSAF, and CVE formats. Coverage will expand over time, while all bulletins remain ava...
🚨 CVE-2026-24264
NVIDIA Triton Inference Server for Linux contains a vulnerability where an attacker can cause improper handling of highly compressed data. A successful exploit of this vulnerability might lead to denial of service.
🎖@cveNotify
NVIDIA Triton Inference Server for Linux contains a vulnerability where an attacker can cause improper handling of highly compressed data. A successful exploit of this vulnerability might lead to denial of service.
🎖@cveNotify
GitHub
product-security/2026/5848 at main · NVIDIA/product-security
Starting October 1, 2025, NVIDIA PSIRT will publish an initial set of security bulletins on GitHub in Markdown, CSAF, and CVE formats. Coverage will expand over time, while all bulletins remain ava...
🚨 CVE-2026-24266
NVIDIA Triton Inference Server for Linux contains a vulnerability where an attacker can cause a use-after-free issue. A successful exploit of this vulnerability might lead to denial of service.
🎖@cveNotify
NVIDIA Triton Inference Server for Linux contains a vulnerability where an attacker can cause a use-after-free issue. A successful exploit of this vulnerability might lead to denial of service.
🎖@cveNotify
GitHub
product-security/2026/5848 at main · NVIDIA/product-security
Starting October 1, 2025, NVIDIA PSIRT will publish an initial set of security bulletins on GitHub in Markdown, CSAF, and CVE formats. Coverage will expand over time, while all bulletins remain ava...