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.

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 sende…

EPSS: 0.000 (4.4th percentile) — read the EPSS interpretation.

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.

Affected products

Openclaw — versions 0, 2026.4.2

Weakness classification (CWE)

CWE-346 — Origin Validation Error

References

GitHub Security Advisory (GHSA-qm77-8qjp-4vcm) (vendor-advisory, Vendor Advisory)
Patch Commit (Patch, patch)
VulnCheck Advisory: OpenClaw < 2026.4.2 - Sender Allowlist Bypass via Slack Thread Context (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.