What’s Vulnerable › Vulnerabilities

CVE-2026-119118: Crawl4AI before 0.9.5 Improper Certificate Validation via Hard-coded Chromium Flags

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-29 · updated 2026-10-29
• Weakness: CWE-295

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.

Affected products

• unclecode crawl4ai: before 0.9.5 — fixed in 0.9.5

How to fix

Upgrade to a fixed version: unclecode crawl4ai 0.9.5. Check the vendor advisory for mitigations.

References

• https://github.com/unclecode/crawl4ai/security/advisories/GHSA-j2qh-f73r-mg3q
• https://www.vulncheck.com/advisories/crawl4ai-before-0.9.5-improper-certificate-validation-via-hard-coded-chromium-flags
• https://github.com/unclecode/crawl4ai/security/advisories/GHSA-j2qh-f73r-mg3q

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