CVE-2026-116740EUVD-2026-110488GHSA-GMC2-WJCF-43VW
libcss through 0.9.2 NULL Pointer Dereference via Media-Query Parser
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fix or patch referenced
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
libcss, a CSS parsing library used by browsers such as NetSurf, is affected by a flaw that lets a remote attacker crash the software. Simply serving a web page with a stylesheet whose media list ends in a comma can trigger the crash, causing denial of service for anyone viewing it.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
libcss through 0.9.2 contains a NULL pointer dereference vulnerability in mq_parse_media_query() that allows remote attackers to crash consumers by supplying media lists ending in a comma. Attackers can serve a stylesheet whose @media or @import media list has a trailing comma, causing NetSurf or other parsers to crash.
Timeline
- CVE published
- First seen by cve.now
Affected versions
- netsurf-browser libcss
through 0.9.2