CVE-2026-34503

OpenClaw < 2026.3.28 - Incomplete WebSocket Session Termination on Device Removal and Token Revocation

CVSS 4.0 8.6 HIGHCVSS 3.1 8.1 HIGHEUVD CVSS 4.0 8.6 CVSS 4.0 · [email protected] · Secondary 8.6 HIGHCVSS 3.1 · [email protected] · Secondary 8.1 HIGHCVSS_V3 CVSS_V4 Publisher rating HIGHFixed by openclaw 2026.3.28KEV status unknown

Original advisory

cve-program · CVE-2026-34503

Published

OpenClaw before 2026.3.28 fails to disconnect active WebSocket sessions when devices are removed or tokens are revoked. Attackers with revoked credentials can maintain unauthorized access through existing live sessions until forced reconnection.

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euvd · EUVD-2026-17469

Published

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nvd · CVE-2026-34503

Published

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osv · GHSA-2pr2-hcv6-7gwv

Published

## 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.

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Affected versions, risk and source history

cve-program · CVE-2026-34503

Published

OpenClaw

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "OpenClaw",
                    "product": "OpenClaw",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "0",
                            "lessThan": "2026.3.28",
                            "versionType": "semver"
                        },
                        {
                            "status": "unaffected",
                            "version": "2026.3.28",
                            "versionType": "semver"
                        }
                    ],
                    "defaultStatus": "unaffected",
                    "packageURL": "pkg:npm/openclaw"
                }

Original source record · Cite this exact observation · Complete original publisher JSON

euvd · EUVD-2026-17469

Published

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: Mar 31, 2026, 2:10:34 PM

dateUpdated: Sep 24, 2026, 2:17:27 PM

1 related source bulletins · separate from aliases

WID-SEC-W-2026-0930: OpenClaw: Mehrere Schwachstellen

CVE-2026-33576 · CVE-2026-33577 · CVE-2026-33578 · CVE-2026-33579 · CVE-2026-33580 · CVE-2026-33581 · CVE-2026-34503 · CVE-2026-34504 · CVE-2026-41303 · CVE-2026-41332 · CVE-2026-41342 · CVE-2026-41344 · CVE-2026-41361 · CVE-2026-41367 · CVE-2026-41368 · CVE-2026-41371 · CVE-2026-41380 · CVE-2026-41395

No normalized affected-package data is projected for this source revision. The original publisher record may contain additional product and version evidence; this does not establish that a package is unaffected.

Original source record · Cite this exact observation · Complete original publisher JSON

nvd · CVE-2026-34503

Published

NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Analyzed

Weakness classifications: CWE-613

Original publisher date fields

published: 2026-03-31T15:16:19.470

lastModified: 2026-07-24T21:10:00.143

1 source CPE criteria · context only

cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*

The original JSON retains the logical configuration operators, exclusions and version bounds.

Original source record · Cite this exact observation · Complete original publisher JSON

osv · GHSA-2pr2-hcv6-7gwv

Published

openclaw

npm

SEMVER · introduced 0 → fixed 2026.3.28

Original source record · Cite this exact observation · Complete original publisher JSON