Medium severity6.5NVD Advisory· Published Oct 26, 2026
CVE-2026-116740
CVE-2026-116740
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.
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Affected products
1- Range: <=0.9.2
Patches
Vulnerability mechanics
References
4- github.com/netsurf-browser/libcss/blob/release/0.9.2/src/parse/mq.cnvd
- github.com/netsurf-browser/libcss/commit/006ffc4096040da13690abc380e5f828ec08284dnvd
- hackmd.io/@haindpwn/libcss-media-list-null-derefnvd
- www.vulncheck.com/advisories/libcss-through-0.9.2-null-pointer-dereference-via-media-query-parsernvd
News mentions
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