Vulnerability in Openclaw
CVE-2026-41407
OpenClaw before 2026.4.2 contains a timing side channel vulnerability in shared-secret comparison call sites that use early length-mismatch checks instead of fixed-length comparison helpers. Attackers can measure timing differences to leak secret-length information, weakening constant-time handling for shared secrets.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (30.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 30.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.004 · change: +0.002
Affected products
- Openclaw — versions 0, 2026.4.2
Weakness classification (CWE)
References
- github.com/openclaw/openclaw/security/advisories/GHSA-jj6q-rrrf-h66h (vendor-advisory, Vendor Advisory)
- github.com/openclaw/openclaw/commit/be10ecef770a4654519869c3641bbb91087c8c7b (Patch, patch)
- www.vulncheck.com/advisories/openclaw-timing-side-channel-in-shared-secret-comp… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-41407?
- CVE-2026-41407 is a low-severity vulnerability in Openclaw, classified under CWE-208. CVSS score: 3.7/10. Published 2026-04-28.
- How severe is CVE-2026-41407?
- Low severity. CVSS v3 base score is 3.7 out of 10.