What is CVE-2026-119118?

CVE-2026-119118 is a medium-severity vulnerability in Unclecode Crawl4ai, classified under Improper Certificate Validation. CVSS score: 6.5/10. Published 2026-10-29.

How severe is CVE-2026-119118?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Unclecode Crawl4ai

CVE-2026-119118

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.

Vulnerability class: Improper Certificate Validation

Published 2026-10-29 · last modified 2026-10-29.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Unclecode Crawl4ai

Weakness classification (CWE)

CWE-295 — Improper Certificate Validation

References

github.com/unclecode/crawl4ai/security/advisories/GHSA-j2qh-f73r-mg3q (vendor-advisory)
www.vulncheck.com/advisories/crawl4ai-before-0.9.5-improper-certificate-validat… (third-party-advisory)

Frequently asked questions

What is CVE-2026-119118?: CVE-2026-119118 is a medium-severity vulnerability in Unclecode Crawl4ai, classified under Improper Certificate Validation. CVSS score: 6.5/10. Published 2026-10-29.
How severe is CVE-2026-119118?: Medium severity. CVSS v3 base score is 6.5 out of 10.