CVE-2026-119118

Crawl4AI before 0.9.5 Improper Certificate Validation via Hard-coded Chromium Flags

State: Published
Severity: 8.3 High
Published: Oct 29, 2026
Updated: Oct 29, 2026
Reserved: Oct 29, 2026

Description

Crawl4AI before 0.9.5 contains an improper certificate validation vulnerability that allows network attackers to intercept crawls because Chromium always launches with --ignore-certificate-errors. Man-in-the-middle or DNS-controlling attackers can serve forged content to the crawler and read cookies and headers sent, while hard-coded --no-sandbox also overrides CRAWL4AI_CHROMIUM_SANDBOX.

Scores

CVSS	Score	Vector	Source
4.0	8.3 High	CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N	VulnCheck
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N	VulnCheck

Weaknesses

CWE-295 Improper Certificate Validation

Affected Products

Product	Versions
crawl4aiunclecode	before 0.9.5Affected 0.9.5Not affected

References

GitHub Security Advisory (GHSA-j2qh-f73r-mg3q)vendor-advisory
VulnCheck Advisory: Crawl4AI before 0.9.5 Improper Certificate Validation via Hard-coded Chromium Flagsthird-party-advisory

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