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Back to active CVEs
Medium · CVSS 5.3CVE-2026-119121

Crawl4AI 0.9.0 before 0.9.5 JavaScript Injection via css_selector and wait_forCVE-2026-119121

Answer in brief

CVE-2026-119121 records a Medium severity (CVSS 5.3) vulnerability in Crawl4AI 0.9.0 before 0.9.5 JavaScript Injection via css_selector and wait_for. The current sources do not mark it as known exploited. The current feed maps unclecode/crawl4ai (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 29, 2026Updated Oct 29, 2026Source checked Oct 29, 2026First seen by HOL Oct 29, 2026Material review Oct 29, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 5.3
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 5.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps unclecode/crawl4ai (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
unclecode/crawl4aigeneric>=0.9.0 <0.9.50.9.5

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for unclecode/crawl4ai.
  2. 2Review the reported fix. Update unclecode/crawl4ai to 0.9.5 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Oct 29, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 29, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 29, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • Source referencevulncheck.com
Upstream source description

Crawl4AI from 0.9.0 before 0.9.5 contains a JavaScript injection vulnerability in the Docker API server that allows authenticated API clients to run arbitrary JavaScript in the crawl page via allowlisted css_selector and wait_for fields. Attackers can inject quotes into css_selector or supply js: conditions in wait_for, bypassing the js_code block to alter page state and returned crawl content.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-95
Source
CVE List V5
Source checked
Oct 29, 2026
References
2 linked sources
Open source record