Vulnerability in Openclaw
CVE-2026-41358
OpenClaw before 2026.4.2 fails to filter Slack thread context by sender allowlist, allowing non-allowlisted messages to enter agent context. Attackers can inject unauthorized thread messages through allowlisted user replies to bypass sender access controls and manipulate model context.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (15.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 15.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.003 · change: +0.001
Affected products
- Openclaw — versions 0, 2026.4.2
Weakness classification (CWE)
References
- github.com/openclaw/openclaw/security/advisories/GHSA-qm77-8qjp-4vcm (vendor-advisory, Vendor Advisory)
- github.com/openclaw/openclaw/commit/ac5bc4fb37becc64a2ec314864cca1565e921f2d (Patch, patch)
- www.vulncheck.com/advisories/openclaw-sender-allowlist-bypass-via-slack-thread-… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-41358?
- CVE-2026-41358 is a medium-severity vulnerability in Openclaw, classified under Origin Validation Error. CVSS score: 5.4/10. Published 2026-04-23.
- How severe is CVE-2026-41358?
- Medium severity. CVSS v3 base score is 5.4 out of 10.