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VulnerabilityPublished

CVE-2026-119118: unclecode crawl4ai · Improper Certificate Validation

Affects unclecode crawl4aiSource CVE Database V5

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Not known to be exploited · CVSS 8.3 High : upgrade to 0.9.5 soon.

Data as of 29 Oct 2026, 16:36 UTC

CVSS 4.0 base score
8.3High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (VulnCheck)CVSS 4.08.3
CNA (VulnCheck)CVSS 3.16.5
Patch
Available – fixed in 0.9.5
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

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 29 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

Upgrade unclecode crawl4ai to 0.9.5.

Affected software

ProductAffectedFixed in
unclecodecrawl4aiAffected
  • <0.9.5
Fixed in
  • 0.9.5
PyPIcrawl4aipkg:pypi/crawl4aiOther threatsAffected
  • <0.9.5
Fixed in
  • 0.9.5

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Upgrade Crawl4AI to version 0.9.5 or later, where this vulnerability is fixed. The fix removes the insecure Chromium launch flags and restores proper certificate validation and sandboxing. No other mitigation is required once the update is applied.

Description

Crawl4AI versions before 0.9.5 have an improper certificate validation vulnerability due to Chromium launching with --ignore-certificate-errors and a hard-coded --no-sandbox override. This allows network attackers performing man-in-the-middle or DNS attacks to serve forged content to the crawler and intercept sensitive data such as cookies and headers.

References

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