CVE catalog
CVE-2026-53851
OpenClaw before 2026.5.12 contains a notification bypass vulnerability allowing Slack reaction events to enter the agent pipeline despite disabled reaction notifications. Attackers can trigger uninten
- Severity
- Medium · CVSS 6.3
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/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 - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.19% · Oct 25, 2026
OpenClaw before 2026.5.12 contains a notification bypass vulnerability allowing Slack reaction events to enter the agent pipeline despite disabled reaction notifications. Attackers can trigger unintended agent processing by sending reaction events when the feature is enabled, potentially leading to unauthorized processing of lower-trust input.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Cpe | openclaw | Not reported | 2026.5.12 | fixed |
| Cpe | openclaw | Not reported | Not reported | unknown |
| Cpe | openclaw | Not reported | Not reported | unknown |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Cpe | openclaw | cpe | Not reported | 2026.5.12 | Not reported | Not reported | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed:
References
- [https://github.com/openclaw/openclaw/security/advisories/GHSA-fcvx-5cxc-v5p8]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-53851]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1738.json]
- [https://www.vulncheck.com/advisories/openclaw-slack-reaction-event-notification-bypass]
[CERT-Bund public advisories] · [FIRST EPSS] · [National Vulnerability Database (NVD)]