CVE-2026-34503: Openclaw OpenClaw's Device Removal And Token Vulnerability

HIGH
Advisory Identifier: GHSA-2pr2-hcv6-7gwv
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CVSS 7.5
CWE-613
Published
Advisory Summary

CVE-2026-34503 is a HIGH (CVSS 7.5) openclaw's device removal and token vulnerability (CWE-613: Insufficient Session Expiration) affecting Openclaw libraries in the npm ecosystem. The issue involves openclaw's device removal and token revocation do not terminate active websocket sessions. Remediation is available by upgrading affected packages to version 2026.3.28.

CVE-2026-34503 at a Glance

CVE Identifier CVE-2026-34503
GHSA Identifier GHSA-2pr2-hcv6-7gwv
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-613: Insufficient Session Expiration
Affected Product Openclaw
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 7.5

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

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

How to Fix CVE-2026-34503

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: 2026.3.28 
npm install openclaw@2026.3.28
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-2026-34503, 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 2026.3.28), 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-613: Insufficient Session Expiration, where according to wasc, "insufficient session expiration is when a web site permits an attacker to reuse old session credentials or session ids for authorization.". 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 Removing a device or revoking its token updated stored credentials but did not disconnect already-authenticated WebSocket sessions. ## Impact A revoked device could continue using its existing live session until reconnect, extending access beyond credential removal. ## Affected Component `src/gateway/server-methods/devices.ts, src/gateway/server.impl.ts` ## Fixed Versions - Affected: `<= 2026.3.24` - Patched: `>= 2026.3.28` - Latest stable `2026.3.28` contains the fix. ## Fix Fixed by commit `7a801cc451` (`Gateway: disconnect revoked device sessions`). OpenClaw thanks @AntAISecurityLab for reporting.

CVE-2026-34503 Affected Openclaw Versions

1 component(s)
Fixed Versions:
2026.3.28
Product / Package Ecosystem Affected Versions Fixed Version
openclaw
npm/openclaw
npm
< 2026.3.28
2026.3.28

References

GitHub Advisory / Wiki ADVISORY
https://github.com/openclaw/openclaw/security/advisories/GHSA-2pr2-hcv6-7gwv
NVD — CVE-2026-34503 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-34503
Security Fix Commit FIX COMMIT
https://github.com/openclaw/openclaw/commit/7a801cc451e9e667b705eeccff651923a1b8c863
Openclaw Source Repository REPOSITORY
https://github.com/openclaw/openclaw
www.vulncheck.com/advisories/openclaw... WEB
https://www.vulncheck.com/advisories/openclaw-incomplete-websocket-session-termination-on-device-removal-and-token-revocation

Frequently Asked Questions

What is CVE-2026-34503?
CVE-2026-34503 is a security vulnerability in Openclaw involving OpenClaw's device removal and token revocation do not terminate active WebSocket sessions under CWE-613: Insufficient Session Expiration.
Which Openclaw versions are affected?
Affected versions include releases prior to 2026.3.28 across affected packages: openclaw.
What version fixes CVE-2026-34503?
Upgrading to 2026.3.28 (or the latest patched release for your respective branch) resolves the vulnerability.
Is openclaw affected?
Yes, openclaw is affected in releases prior to 2026.3.28. Upgrade your dependency to 2026.3.28 or later.
What is the CVSS score of CVE-2026-34503?
CVE-2026-34503 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with CVE-2026-34503?
CVE-2026-34503 is classified under CWE-613: Insufficient Session Expiration (According to WASC, "Insufficient Session Expiration is when a web site permits an attacker to reuse old session credentials or session IDs for authorization.").
How can I check npm dependencies for CVE-2026-34503?
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-2pr2-hcv6-7gwv",
  "modified" : "2026-04-06T17:33:55Z",
  "published" : "2026-03-31T23:52:03Z",
  "aliases" : [ "CVE-2026-34503" ],
  "summary" : "OpenClaw's device removal and token revocation do not terminate active WebSocket sessions",
  "details" : "## Summary\n\nRemoving a device or revoking its token updated stored credentials but did not disconnect already-authenticated WebSocket sessions.\n\n## Impact\n\nA revoked device could continue using its existing live session until reconnect, extending access beyond credential removal.\n\n## Affected Component\n\n`src/gateway/server-methods/devices.ts, src/gateway/server.impl.ts`\n\n## Fixed Versions\n\n- Affected: `<= 2026.3.24`\n- Patched: `>= 2026.3.28`\n- Latest stable `2026.3.28` contains the fix.\n\n## Fix\n\nFixed by commit `7a801cc451` (`Gateway: disconnect revoked device sessions`).\n\nOpenClaw thanks @AntAISecurityLab for reporting.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "openclaw"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2026.3.28"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 2026.3.24"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/security/advisories/GHSA-2pr2-hcv6-7gwv"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-34503"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/commit/7a801cc451e9e667b705eeccff651923a1b8c863"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/openclaw/openclaw"
  }, {
    "type" : "WEB",
    "url" : "https://www.vulncheck.com/advisories/openclaw-incomplete-websocket-session-termination-on-device-removal-and-token-revocation"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-613" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-03-31T23:52:03Z",
    "nvd_published_at" : null
  }
}