CVE-2026-32895 json
OpenClaw < 2026.2.26 - Sender Authorization Bypass in Slack System Event Handlers
published 7mo ago modified 4mo ago also GHSA-v8cg-4474-49v8 , EUVD-2026-13970
- cvss
- 5.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 8%
- public exploits
- 0
- none known
Summary
OpenClaw versions prior to 2026.2.26 fail to enforce sender authorization in member and message subtype system event handlers, allowing unauthorized events to be enqueued. Attackers can bypass Slack DM allowlists and per-channel user allowlists by sending system events from non-allowlisted senders through message_changed, message_deleted, and thread_broadcast events.
Patch / fix
Is CVE-2026-32895 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 7mo ago
Exploit prediction
0.19% chance of exploitation in the next 30 days, higher than 8% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 5.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N |
| CNA | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N |
| CNA | 4.0 | 5.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/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 |
| GitHub | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | openclaw | <2026.2.26 |
2026.2.26 |
Affected products
- OpenClaw OpenClaw
Classification
- Weakness
-
- CWE-863 Incorrect Authorization
References
-
github.com
/openclaw/openclaw/commit/3d30ba18a2aba1e1b302e77ff33145c3b06c01c8
patch, web
-
github.com
/openclaw/openclaw/security/advisories/GHSA-v8cg-4474-49v8
vendor-advisory, web
-
vulncheck.com
/advisories/openclaw-sender-authorization-bypass-in-slack-system-event-handlers
third-party-advisory, web
-
nvd.nist.gov
/vuln/detail/CVE-2026-32895
advisory
-
github.com
/openclaw/openclaw
package
Sources
- CVE List CVE-2026-32895
- GitHub Advisory GHSA-v8cg-4474-49v8
- NVD CVE-2026-32895
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