CVE-2026-34503
OpenClaw < 2026.3.28 - Incomplete WebSocket Session Termination on Device Removal and Token Revocation
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
OpenClaw < 2026.3.28 - Incomplete WebSocket Session Termination on Device Removal and Token Revocation
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.
- Record
CVE-2026-34503- CVSS 4.0
- 8.6 High
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 - CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N - Weakness
- CWE-613
- Updated
- 2026-11-02
EUVDEUVD-2026-17469
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.
- Record
EUVD-2026-17469- CVSS 4.0
- 8.6 High
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 - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-2pr2-hcv6-7gwv
OpenClaw's device removal and token revocation do not terminate active WebSocket sessions
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
2026.3.28contains the fix.
Fix
Fixed by commit 7a801cc451 (Gateway: disconnect revoked device sessions).
OpenClaw thanks @AntAISecurityLab for reporting.
- Record
GHSA-2pr2-hcv6-7gwv- CVSS 4.0
- 8.6 High
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 - CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-613
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-34503- CVSS 4.0
- 8.6 High
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N - Weakness
- CWE-613
- Updated
- 2026-11-02
OSV
OpenClaw < 2026.3.28 - Incomplete WebSocket Session Termination on Device Removal and Token Revocation
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.
- Record
CVE-2026-34503- CVSS 4.0
- 8.6 High
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 - Weakness
- CWE-613
- Updated
- 2026-11-02
OSVGHSA-2pr2-hcv6-7gwv
OpenClaw's device removal and token revocation do not terminate active WebSocket sessions
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
2026.3.28contains the fix.
Fix
Fixed by commit 7a801cc451 (Gateway: disconnect revoked device sessions).
OpenClaw thanks @AntAISecurityLab for reporting.
- Record
GHSA-2pr2-hcv6-7gwv- CVSS 4.0
- 8.6 High
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 - CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-613
- Updated
- 2026-11-02
Affected products
Affected packages
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-34503 is a high vulnerability (CVSS 8.6) in Openclaw, published March 31, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.34%, the 27th percentile. Fixed in openclaw 2026.3.28.
References
github.com/openclaw/openclaw/security/advisories/GHSA-2pr2-hcv6-7gwv
vulncheck.com/advisories/openclaw-incomplete-websocket-session-termination-on-device-removal-and-token-revocation
nvd.nist.gov/vuln/detail/CVE-2026-34503