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CVE-2026-35642

OpenClaw < 2026.3.25 - Authorization Bypass in Group Reactions via requireMention Bypass

5.3 Medium

OpenClaw before 2026.3.25 contains an authorization bypass vulnerability where group reaction events bypass the requireMention access control mechanism. Attackers can trigger reactions in mention-gated groups to enqueue agent-visible system events that should remain restricted.

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
None
Integrity
Low
Availability
None

Exploit likelihood

0.20%Up 0.2 points since Apr 10, 2026
90%50%10%1%

What each source reports

CVE List Score used 5.3

OpenClaw < 2026.3.25 - Authorization Bypass in Group Reactions via requireMention Bypass

OpenClaw before 2026.3.25 contains an authorization bypass vulnerability where group reaction events bypass the requireMention access control mechanism. Attackers can trigger reactions in mention-gated groups to enqueue agent-visible system events that should remain restricted.

Record
CVE-2026-35642
CVSS 4.0
5.3 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
CVSS 3.1
4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Weakness
CWE-288
Updated
2026-11-02
EUVDEUVD-2026-21138 5.3

OpenClaw before 2026.3.25 contains an authorization bypass vulnerability where group reaction events bypass the requireMention access control mechanism. Attackers can trigger reactions in mention-gated groups to enqueue agent-visible system events that should remain restricted.

Record
EUVD-2026-21138
CVSS 4.0
5.3 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-3grx-cg6p-5wc6 5.3

OpenClaw before 2026.3.25 contains an authorization bypass vulnerability where group reaction...

OpenClaw before 2026.3.25 contains an authorization bypass vulnerability where group reaction events bypass the requireMention access control mechanism. Attackers can trigger reactions in mention-gated groups to enqueue agent-visible system events that should remain restricted.

Record
GHSA-3grx-cg6p-5wc6
CVSS 4.0
5.3 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/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
4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Weakness
CWE-288
Updated
2026-11-02
GitHub AdvisoriesGHSA-mw7w-g3mg-xqm7 5.3

OpenClaw: BlueBubbles Group Reactions Bypass requireMention and Still Enqueue Agent-Visible System Events

Summary

BlueBubbles Group Reactions Bypass requireMention and Still Enqueue Agent-Visible System Events

Affected Packages / Versions

  • Package: openclaw
  • Affected versions: <= 2026.3.24
  • First patched version: 2026.3.25
  • Latest published npm version at verification time: 2026.3.24

Details

BlueBubbles group reaction events previously bypassed requireMention and still enqueued agent-visible system events in groups that were supposed to stay mention-gated. Commit f8c98630785288cc1f1d0893503ef3b653a3cede applies the reaction path to the same mention gate as normal group messages.

Verified vulnerable on tag v2026.3.24 and fixed on main by commit f8c98630785288cc1f1d0893503ef3b653a3cede.

Fix Commit(s)

  • f8c98630785288cc1f1d0893503ef3b653a3cede
Record
GHSA-mw7w-g3mg-xqm7
CVSS 4.0
5.3 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Weakness
CWE-288, CWE-863
Updated
2026-11-02
NVD 5.3

OpenClaw before 2026.3.25 contains an authorization bypass vulnerability where group reaction events bypass the requireMention access control mechanism. Attackers can trigger reactions in mention-gated groups to enqueue agent-visible system events that should remain restricted.

Record
CVE-2026-35642
CVSS 4.0
5.3 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/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
4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Weakness
CWE-288
Updated
2026-11-02
OSV 5.3

OpenClaw < 2026.3.25 - Authorization Bypass in Group Reactions via requireMention Bypass

OpenClaw before 2026.3.25 contains an authorization bypass vulnerability where group reaction events bypass the requireMention access control mechanism. Attackers can trigger reactions in mention-gated groups to enqueue agent-visible system events that should remain restricted.

Record
CVE-2026-35642
CVSS 4.0
5.3 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Weakness
CWE-288
Updated
2026-11-02
OSVGHSA-mw7w-g3mg-xqm7 5.3

OpenClaw: BlueBubbles Group Reactions Bypass requireMention and Still Enqueue Agent-Visible System Events

Summary

BlueBubbles Group Reactions Bypass requireMention and Still Enqueue Agent-Visible System Events

Affected Packages / Versions

  • Package: openclaw
  • Affected versions: <= 2026.3.24
  • First patched version: 2026.3.25
  • Latest published npm version at verification time: 2026.3.24

Details

BlueBubbles group reaction events previously bypassed requireMention and still enqueued agent-visible system events in groups that were supposed to stay mention-gated. Commit f8c98630785288cc1f1d0893503ef3b653a3cede applies the reaction path to the same mention gate as normal group messages.

Verified vulnerable on tag v2026.3.24 and fixed on main by commit f8c98630785288cc1f1d0893503ef3b653a3cede.

Fix Commit(s)

  • f8c98630785288cc1f1d0893503ef3b653a3cede
Record
GHSA-mw7w-g3mg-xqm7
CVSS 4.0
5.3 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Weakness
CWE-288, CWE-863
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
openclaw
npm
 through 2026.3.24 None known

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-35642 is a medium vulnerability (CVSS 5.3) in Openclaw, published March 27, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.20%, the 10th percentile. No source names a fixed version.

References

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