CVE-2026-21725 Authorization Bypass via TOCTOU in Grafana Datasource Deletion by Name

A time-of-create-to-time-of-use TOCTOU vulnerability lets recently deleted-then-recreated data sources be re-deleted without permission to do so. This requires several very stringent conditions to be met: - The attacker must have admin access to the specific datasource prior to its first deletion...

CVE-2026-26717

The OpenFUN Richie (LMS) platform is vulnerable to an HMAC timing attack due to the use of a non-constant time == operator during signature verification. The flaw exists in the sync_course_run_from_request function within src/richie/apps/courses/api.py. This allows remote attackers to forge valid...

Linux Kernel ADDRESS_MASKING Configuration

The vulnerability described in the ADDRESSMASKING configuration description in the arch/x86/Kconfig module of the Linux operating system’s kernel is related to the disclosure of information due to timing mismatches. Exploiting this vulnerability can allow an attacker to compromise the...

Richie 安全漏洞

Richie is an open-source educational content management system developed by France Université Numérique. Richie has a security vulnerability. This vulnerability stems from the use of the non-constant time == operator in the synccourserunfromrequest function for HMAC signature verification. This...

CVE-2026-26717

An issue in OpenFUN Richie LMS in src/richie/apps/courses/api.py. The application used the non-constant time == operator for HMAC signature verification in the synccourserunfromrequest function. This allows remote attackers to forge valid signatures and bypass authentication by measuring response...

CVE-2026-26717

An issue in OpenFUN Richie LMS in src/richie/apps/courses/api.py. The application used the non-constant time == operator for HMAC signature verification in the synccourserunfromrequest function. This allows remote attackers to forge valid signatures and bypass authentication by measuring response...

CVE-2026-26717

An issue in OpenFUN Richie LMS in src/richie/apps/courses/api.py. The application used the non-constant time == operator for HMAC signature verification in the synccourserunfromrequest function. This allows remote attackers to forge valid signatures and bypass authentication by measuring response...

PT-2026-21958

Name of the Vulnerable Software and Affected Versions OpenFUN Richie LMS affected versions not specified Description The application uses a non-constant time comparison operator for HMAC signature verification within the sync course run from request function, located in...

CVE-2026-26717: Observable Timing Discrepancy

An issue in OpenFUN Richie LMS in src/richie/apps/courses/api.py. The application used the non-constant time == operator for HMAC signature verification in the synccourserunfromrequest function. This allows remote attackers to forge valid signatures and bypass authentication by measuring response...

PT-2026-51939

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the tegra124-emc memory component where the logic used to verify if the specified memory timing enables the Delay-Locked Loop DLL in the EMRS register was reversed. Th...

CVE-2026-27480

Static Web Server SWS is a production-ready web server suitable for static web files or assets. In versions 2.1.0 through 2.40.1, a timing-based username enumeration vulnerability in Basic Authentication allows attackers to identify valid users by exploiting early responses for invalid usernames,...

CVE-2026-27467

BigBlueButton is an open-source virtual classroom. In versions 3.0.19 and below, when first joining a session with the microphone muted, the client sends audio to the server regardless of mute state. Media is discarded at the server side, so it isn't audible to any participants, but this may allo...

CVE-2026-27480

Static Web Server SWS is a production-ready web server suitable for static web files or assets. In versions 2.1.0 through 2.40.1, a timing-based username enumeration vulnerability in Basic Authentication allows attackers to identify valid users by exploiting early responses for invalid usernames,...

CVE-2026-27480 Static Web Server: Timing-Based Username Enumeration in Basic Authentication

Static Web Server SWS is a production-ready web server suitable for static web files or assets. In versions 2.1.0 through 2.40.1, a timing-based username enumeration vulnerability in Basic Authentication allows attackers to identify valid users by exploiting early responses for invalid usernames,...

CVE-2026-27480

Static Web Server SWS is a production-ready web server suitable for static web files or assets. In versions 2.1.0 through 2.40.1, a timing-based username enumeration vulnerability in Basic Authentication allows attackers to identify valid users by exploiting early responses for invalid usernames,...

CVE-2026-27480 Static Web Server: Timing-Based Username Enumeration in Basic Authentication

Static Web Server SWS is a production-ready web server suitable for static web files or assets. In versions 2.1.0 through 2.40.1, a timing-based username enumeration vulnerability in Basic Authentication allows attackers to identify valid users by exploiting early responses for invalid usernames,...

CVE-2026-27480

CVE-2026-27480 affects Static Web Server (SWS) versions 2.1.0 through 2.40.1. The vulnerability is a timing-based username enumeration in Basic Authentication: the server checks whether a username exists before validating the password, causing valid usernames to take a slower path (e.g., bcrypt h...

CVE-2026-27480 Static Web Server: Timing-Based Username Enumeration in Basic Authentication

Static Web Server SWS is a production-ready web server suitable for static web files or assets. In versions 2.1.0 through 2.40.1, a timing-based username enumeration vulnerability in Basic Authentication allows attackers to identify valid users by exploiting early responses for invalid usernames,...

CVE-2026-27480: Observable Response Discrepancy

Static Web Server SWS is a production-ready web server suitable for static web files or assets. In versions 2.1.0 through 2.40.1, a timing-based username enumeration vulnerability in Basic Authentication allows attackers to identify valid users by exploiting early responses for invalid usernames,...

GHSA-QHP6-635J-X7R2 Static Web Server affected by timing-based username enumeration in Basic Authentication due to early response on invalid usernames

Summary A Timing-based username enumeration in Basic Authentication vulnerability due to early response on invalid usernames could allow attackers to identify valid users and focus their efforts on targeted brute-force or credential-stuffing attacks. Details SWS validates the provided username...