Gnome Yelp vulnerabilities

CVE-2008-3533 [CRITICAL] CWE-134 CVE-2008-3533: Format string vulnerability in the window_error function in yelp-window.c in yelp in Gnome after 2.1 Format string vulnerability in the window_error function in yelp-window.c in yelp in Gnome after 2.19.90 and before 2.24 allows remote attackers to execute arbitrary code via format string specifiers in an invalid URI on the command line, as demonstrated by use of yelp within (1) man or (2) ghelp URI handlers in Firefox, Evolution, and unspecified o

CVE-2025-3155 [HIGH] CWE-601 CVE-2025-3155: A flaw was found in Yelp. The Gnome user help application allows the help document to execute arbitr A flaw was found in Yelp. The Gnome user help application allows the help document to execute arbitrary scripts. This vulnerability allows malicious users to input help documents, which may exfiltrate user files to an external environment.

CVE-2026-13601 [MEDIUM] CWE-693 CVE-2026-13601: A flaw was found in Yelp due to an overly permissive Content Security Policy (CSP) implementation pr A flaw was found in Yelp due to an overly permissive Content Security Policy (CSP) implementation provided by yelp-xsl. A malicious Flatpak application can open crafted help content through the OpenURI portal. By embedding an untrusted CSS stylesheet within a structured SVG document, attacker-controlled content can bypass Flatpak's intended sandbox