CVE-2026-74859

The shell theme installer in gnome-tweaks extracts user-supplied ZIP archives without validating archive member paths. As a result, a crafted theme archive can write files outside /.themes by using ../ path traversal, absolute paths, or symlink entries...

grafana: Grafana: Denial of Service via unbounded memory growth in OAuth login route

A flaw was found in Grafana. An unauthenticated attacker can repeatedly access the OAuth login route with unique values. This can lead to unbounded memory growth, eventually exhausting system memory and causing the Grafana instance to crash. This results in a denial of service for legitimate user...

grafana: Grafana: Stored Cross-Site Scripting via malicious dashboard field name

A flaw in Grafana allows authenticated 'Editor' users to inject malicious scripts into a table panel's field names. Viewing the compromised dashboard executes the script in the victim's browser, risking data theft or client-side attacks...

grafana: Grafana: Privilege escalation via broken access control

A flaw was found in Grafana. This vulnerability, categorized as broken access control, allows an attacker to bypass security mechanisms in a web application. This can lead to unauthorized access to sensitive data, enable operations on behalf of other users, and potentially result in privilege...

grafana: Grafana: Denial of Service via excessive memory allocation from large API request payloads

A flaw in Grafana's API endpoints allows remote attackers to send excessively large request bodies without authentication. This exhausts server memory, resulting in a complete denial of service DoS...

grafana: Grafana: Denial of Service via uncontrolled memory usage in alertmanager templates

A flaw was found in Grafana. A remote attacker with very low privileges, or even anonymous access if enabled, can exploit the alertmanager templates test endpoint by mass-executing templates. This can lead to an Out-Of-Memory OOM error, causing the Grafana service to crash and resulting in a Deni...

Security update for amazon-ssm-agent

This update for amazon-ssm-agent fixes the following issues: CVE-2026-71556: github.com/go-git/go-git/v5: Arbitrary file read/write via symbolic link resolution bsc1276981. CVE-2026-71557: github.com/go-git/go-git/v5: Malicious reference names may modify files outside the reference storage...

firefox: thunderbird: Site isolation issue in the Graphics: CanvasWebGL component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Site isolation issue in the Graphics: CanvasWebGL component...

firefox: Site isolation issue in the Networking: Cookies component

A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue: Site isolation issue in the Networking: Cookies component...

firefox: thunderbird: Use-after-free in the JavaScript: WebAssembly component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Use-after-free in the JavaScript: WebAssembly component...

firefox: thunderbird: Internally found bugs fixed in Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1 and Firefox 154

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Internally found bugs present in Thunderbird ESR 140.13, Thunderbird ESR 153.0 and Thunderbird 153. Some of these bugs showed evidence of memory corruption or another...

firefox: thunderbird: Information disclosure in the Graphics: Text component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Information disclosure in the Graphics: Text component...

firefox: thunderbird: Internally found bugs fixed in Firefox ESR 140.14, Firefox ESR 153.1 and Firefox 154

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Internally found bugs present in Thunderbird ESR 140.13, Thunderbird ESR 153.0 and Thunderbird 153. Some of these bugs showed evidence of memory corruption or another...

firefox: thunderbird: Use-after-free in the Layout: Text and Fonts component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Use-after-free in the Layout: Text and Fonts component...

firefox: thunderbird: Privilege escalation in the DOM: Navigation component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Privilege escalation in the DOM: Navigation component...

firefox: thunderbird: Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component...

firefox: thunderbird: Privilege escalation due to use-after-free in the Graphics: Canvas2D component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Privilege escalation due to use-after-free in the Graphics: Canvas2D component...

firefox: thunderbird: Privilege escalation in the Graphics: CanvasWebGL component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Privilege escalation in the Graphics: CanvasWebGL component...

firefox: thunderbird: Mitigation bypass in the Data Loss Prevention component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Mitigation bypass in the Data Loss Prevention component...

firefox: thunderbird: Site isolation issue in the WebExtensions component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Site isolation issue in the WebExtensions component...