CVE-2026-116740
Medium
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.
SeverityMedium
CVSS6.5
Exploit probability—
ProductNetsurf-browser Libcss
PublishedOct 26, 2026
First seenOct 26, 2026
Weakness typeCWE-476NULL pointer dereference
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| netsurf-browser libcss | v ≤ 0.9.2 | — |
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