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.
Published: 2026-10-26
Score: 7.1 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Tue, 27 Oct 2026 04:30:00 +0000

Type Values Removed Values Added
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.
Title libcss through 0.9.2 NULL Pointer Dereference via Media-Query Parser
Weaknesses CWE-476
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 7.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-26T21:52:39.177Z

Reserved: 2026-10-26T20:23:36.353Z

Link: CVE-2026-116740

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-26T22:16:58.390

Modified: 2026-10-26T22:16:58.390

Link: CVE-2026-116740

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-27T08:15:15Z

Weaknesses