CVE-2026-35624: OpenClaw Nextcloud Talk Room Allowlist Matched Vulnerability

LOW
Advisory Identifier: GHSA-xhq5-45pm-2gjr
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CVSS 4.2
CWE-639 CWE-807 CWE-863
Published
Advisory Summary

CVE-2026-35624 is a LOW (CVSS 4.2) nextcloud talk room allowlist matched vulnerability (CWE-639: Authorization Bypass Through User-Controlled Key) affecting OpenClaw libraries in the npm ecosystem. The issue involves nextcloud talk room allowlist matched colliding room names instead of stable room tokens. Remediation is available by upgrading affected packages to version 2026.3.22.

CVE-2026-35624 at a Glance

CVE Identifier CVE-2026-35624
GHSA Identifier GHSA-xhq5-45pm-2gjr
Severity LOW
CVSS v3.1 Base Score 4.2
CWE Classification CWE-639: Authorization Bypass Through User-Controlled Key
Affected Product OpenClaw
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 4.2

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N).

Attack Vector Network (AV:N)
Attack Complexity High (AC:H)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality Low (C:L)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2026-35624

To remediate this vulnerability, upgrade all affected OpenClaw dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

openclaw fixed: 2026.3.22 
npm install openclaw@2026.3.22
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

npm ls openclaw

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2026-35624, inspect your project dependencies using npm:

npm ls openclaw

Analyze the terminal output to locate any version of OpenClaw in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2026.3.22), your application is affected.

Note: The npm ls openclaw command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-639: Authorization Bypass Through User-Controlled Key, where the system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data. In OpenClaw, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

## Summary Nextcloud Talk room authorization matched on collidable room names instead of the stable room token, allowing policy confusion across similarly named rooms. ## Affected Packages / Versions - Package: `openclaw` (npm) - Affected: < 2026.3.22 - Fixed: >= 2026.3.22 - Latest released tag checked: `v2026.3.23-2` (`630f1479c44f78484dfa21bb407cbe6f171dac87`) - Latest published npm version checked: `2026.3.23-2` ## Fix Commit(s) - `a47722de7e3c9cbda8d5512747ca7e3bb8f6ee66` ## Release Status The fix shipped in `v2026.3.22` and remains present in `v2026.3.23` and `v2026.3.23-2`. ## Code-Level Confirmation - extensions/nextcloud-talk/src/inbound.ts now resolves allowlist policy from roomToken-backed room identity. - extensions/nextcloud-talk/src/policy.ts now keys room authorization on stable room tokens instead of display names. OpenClaw thanks @zpbrent for reporting.

CVE-2026-35624 Affected OpenClaw Versions

1 component(s)
Fixed Versions:
2026.3.22
Product / Package Ecosystem Affected Versions Fixed Version
openclaw
npm/openclaw
npm
< 2026.3.22
2026.3.22

References

GitHub Advisory / Wiki ADVISORY
https://github.com/openclaw/openclaw/security/advisories/GHSA-xhq5-45pm-2gjr
NVD — CVE-2026-35624 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-35624
Security Fix Commit FIX COMMIT
https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87
Security Fix Commit FIX COMMIT
https://github.com/openclaw/openclaw/commit/a47722de7e3c9cbda8d5512747ca7e3bb8f6ee66
OpenClaw Source Repository REPOSITORY
https://github.com/openclaw/openclaw
www.vulncheck.com/advisories/openclaw... WEB
https://www.vulncheck.com/advisories/openclaw-policy-confusion-via-room-name-collision-in-nextcloud-talk

Frequently Asked Questions

What is CVE-2026-35624?
CVE-2026-35624 is a security vulnerability in OpenClaw involving Nextcloud Talk room allowlist matched colliding room names instead of stable room tokens under CWE-639: Authorization Bypass Through User-Controlled Key.
Which OpenClaw versions are affected?
Affected versions include releases prior to 2026.3.22 across affected packages: openclaw.
What version fixes CVE-2026-35624?
Upgrading to 2026.3.22 (or the latest patched release for your respective branch) resolves the vulnerability.
Is openclaw affected?
Yes, openclaw is affected in releases prior to 2026.3.22. Upgrade your dependency to 2026.3.22 or later.
What is the CVSS score of CVE-2026-35624?
CVE-2026-35624 has a CVSS v3.1 base score of 4.2 (LOW) with vector string CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N.
What CWE is associated with CVE-2026-35624?
CVE-2026-35624 is classified under CWE-639: Authorization Bypass Through User-Controlled Key (The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.).
How can I check npm dependencies for CVE-2026-35624?
Run the dependency tree command: 'npm ls openclaw'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-xhq5-45pm-2gjr",
  "modified" : "2026-04-18T00:56:28Z",
  "published" : "2026-03-26T21:34:18Z",
  "aliases" : [ "CVE-2026-35624" ],
  "summary" : "OpenClaw: Nextcloud Talk room allowlist matched colliding room names instead of stable room tokens",
  "details" : "## Summary\nNextcloud Talk room authorization matched on collidable room names instead of the stable room token, allowing policy confusion across similarly named rooms.\n\n## Affected Packages / Versions\n- Package: `openclaw` (npm)\n- Affected: < 2026.3.22\n- Fixed: >= 2026.3.22\n- Latest released tag checked: `v2026.3.23-2` (`630f1479c44f78484dfa21bb407cbe6f171dac87`)\n- Latest published npm version checked: `2026.3.23-2`\n\n## Fix Commit(s)\n- `a47722de7e3c9cbda8d5512747ca7e3bb8f6ee66`\n\n## Release Status\nThe fix shipped in `v2026.3.22` and remains present in `v2026.3.23` and `v2026.3.23-2`.\n\n## Code-Level Confirmation\n- extensions/nextcloud-talk/src/inbound.ts now resolves allowlist policy from roomToken-backed room identity.\n- extensions/nextcloud-talk/src/policy.ts now keys room authorization on stable room tokens instead of display names.\n\nOpenClaw thanks @zpbrent for reporting.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "openclaw"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2026.3.22"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/security/advisories/GHSA-xhq5-45pm-2gjr"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-35624"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/commit/a47722de7e3c9cbda8d5512747ca7e3bb8f6ee66"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/openclaw/openclaw"
  }, {
    "type" : "WEB",
    "url" : "https://www.vulncheck.com/advisories/openclaw-policy-confusion-via-room-name-collision-in-nextcloud-talk"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-639", "CWE-807", "CWE-863" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-03-26T21:34:18Z",
    "nvd_published_at" : null
  }
}