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CVE-2026-119121medium5.3

Crawl4AI 0.9.0 before 0.9.5 JavaScript Injection via css_selector and wait_for

Impact

Crawl4AI versions 0.9.0 before 0.9.5 have a JavaScript injection vulnerability, allowing authenticated API clients to run arbitrary JavaScript via css_selector and wait_for fields. Attackers can alter page state and crawl content.

Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.

Affected packages

This source has no supported package-version data for matching. You can read the advisory here, but this record alone cannot power a dependency check.

Affected products

Vendor version evidence. Product records are separate from automatic dependency matching.

unclecode · VulnCheck

crawl4ai

2 ranges
VulnCheck version evidence

Package identity

pkg:pypi/crawl4aiExplore crawl4ai →

Identity supplied by VulnCheck. Version matching requires compatible range evidence.

Compare with this publisher’s ranges. This does not inspect your installation.

affected

0.9.0 → before 0.9.5

semver versions

unaffected

0.9.5

semver versions

unknown

Other versions: unaffected

Original 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.

Inside the record

Evidence available

Package identity
Version evidence
Remediation guidance · not supplied
Weakness classification
Additional publishers

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2026-119121

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-95 ↗

Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')

VulnCheck

Related →
Contributing organizations · 2
VulnCheck

Assigning organization

2026-10-29
CISA-ADP

Additional data publisher

2026-10-29

What changed

Follow changes
  1. CVE · CVE-2026-119121

    Observed 2026-10-29T17:37:08.236Z · upstream updated 2026-10-29T17:15:06.009Z

    Prioritization updated

    before

    []

    after

    [
  {
    "source": "CISA-ADP",
    "type": "SSVC",
    "role": "CISA Coordinator",
    "timestamp": "2026-10-29T16:16:09.064813Z",
    "decisions": [
      {
        "name": "Exploitation",
        "value": "none"
      },
      {
        "name": "Automatable",
        "value": "no"
      },
      {
        "name": "Technical Impact",
        "value": "partial"
      }
    ]
  }
]

Large field values are marked as truncated previews. Original source snapshots remain retained.

Showing up to 50 most recent observed changes.

References

2 sources
github.com/unclecode/crawl4ai/security/advisories/GHSA-qj46-wp7m-rgj8
vendor-advisoryVulnCheck
www.vulncheck.com/advisories/crawl4ai-0.9.0-before-0.9.5-javascript-injection-via-css-selector-and-wait-for
third-party-advisoryVulnCheck