Vulnerability-Lookup

GHSA-C4QM-58HJ-J6PJ

Vulnerability from github – Published: 2026-04-17 21:47 – Updated: 2026-05-08 01:32

Summary

OpenClaw: Browser snapshot and screenshot routes could expose internal page content after navigation

Details

Summary

Browser snapshot and screenshot routes could expose internal page content after navigation.

Affected Packages / Versions

Package: openclaw
Ecosystem: npm
Affected versions: < 2026.4.14
Patched versions: >= 2026.4.14

Impact

Authenticated browser tool callers could use snapshot, screenshot, or tab routes that did not consistently validate the final browser target after route-driven navigation. In restrictive browser SSRF configurations this could expose content from internal or otherwise disallowed pages.

Technical Details

The fix re-checks browser snapshot, screenshot, and tab route results against the configured browser SSRF policy before returning page content. Regression coverage was added around snapshot/screenshot and tab-route flows.

Fix

The issue was fixed in #66040. The first stable tag containing the fix is v2026.4.14, and openclaw@2026.4.14 includes the fix.

Fix Commit(s)

b75ad800a59009fc47eaa3471410f69046150e59
PR: #66040

Release Process Note

Users should upgrade to openclaw 2026.4.14 or newer. The latest npm release, 2026.4.14, already includes the fix.

Credits

Thanks to @zsxsoft, with sponsorship from @KeenSecurityLab and @qclawer for reporting this issue.

Severity

7.7 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

6.0 (Medium)


                  
                    CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "openclaw"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2026.4.14"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-42436"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-862",
      "CWE-918"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-04-17T21:47:36Z",
    "nvd_published_at": "2026-05-05T12:16:18Z",
    "severity": "MODERATE"
  },
  "details": "## Summary\n\nBrowser snapshot and screenshot routes could expose internal page content after navigation.\n\n## Affected Packages / Versions\n\n- Package: `openclaw`\n- Ecosystem: npm\n- Affected versions: `\u003c 2026.4.14`\n- Patched versions: `\u003e= 2026.4.14`\n\n## Impact\n\nAuthenticated browser tool callers could use snapshot, screenshot, or tab routes that did not consistently validate the final browser target after route-driven navigation. In restrictive browser SSRF configurations this could expose content from internal or otherwise disallowed pages.\n\n## Technical Details\n\nThe fix re-checks browser snapshot, screenshot, and tab route results against the configured browser SSRF policy before returning page content. Regression coverage was added around snapshot/screenshot and tab-route flows.\n\n## Fix\n\nThe issue was fixed in #66040. The first stable tag containing the fix is `v2026.4.14`, and `openclaw@2026.4.14` includes the fix.\n\n## Fix Commit(s)\n\n- `b75ad800a59009fc47eaa3471410f69046150e59`\n- PR: #66040\n\n## Release Process Note\n\nUsers should upgrade to `openclaw` 2026.4.14 or newer. The latest npm release, `2026.4.14`, already includes the fix.\n\n## Credits\n\nThanks to @zsxsoft, with sponsorship from @KeenSecurityLab and @qclawer for reporting this issue.",
  "id": "GHSA-c4qm-58hj-j6pj",
  "modified": "2026-05-08T01:32:06Z",
  "published": "2026-04-17T21:47:36Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-c4qm-58hj-j6pj"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42436"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/pull/66040"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/commit/b75ad800a59009fc47eaa3471410f69046150e59"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/openclaw/openclaw"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/openclaw-internal-page-content-exposure-via-browser-snapshot-and-screenshot-routes"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "OpenClaw: Browser snapshot and screenshot routes could expose internal page content after navigation"
}

CVE-2026-42436 (GCVE-0-2026-42436)

Vulnerability from cvelistv5 – Published: 2026-05-05 11:24 – Updated: 2026-05-06 14:10 X_Open Source

Title

OpenClaw < 2026.4.14 - Internal Page Content Exposure via Browser Snapshot and Screenshot Routes

Summary

OpenClaw before 2026.4.14 contains an improper access control vulnerability in browser snapshot, screenshot, and tab routes that fail to consistently validate the final browser target after navigation. Authenticated callers can bypass SSRF restrictions to expose internal or disallowed page content by exploiting route-driven navigation without proper policy re-validation.

Severity

4.9 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N

7.7 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-06 14:10 UTC

CWE

CWE-862 - Missing Authorization

Assigner

VulnCheck mitre root

References

3 references

URL	Tags
https://github.com/openclaw/openclaw/security/adv…	vendor-advisory
https://github.com/openclaw/openclaw/commit/b75ad…	patch
https://www.vulncheck.com/advisories/openclaw-int…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
OpenClaw	OpenClaw	Affected: 0 , < 2026.4.14 (semver) Unaffected: 2026.4.14 (semver) cpe:2.3:a:openclaw:openclaw::::::node.js::*

Date Public

2026-04-16 00:00

Credits

zsx (@zsxsoft) KeenSecurityLab qclawer

Show details on NVD website

JSON

To clipboard

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      "metrics": [
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

GHSA-C4QM-58HJ-J6PJ

Summary

Affected Packages / Versions

Impact

Technical Details

Fix

Fix Commit(s)

Release Process Note

Credits

CVE-2026-42436 (GCVE-0-2026-42436)

Tags

Sightings

Nomenclature

Related by attack behaviour