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VulnerabilityPublished Updated

CVE-2026-41407: OpenClaw · Timing Side Channel

Affects OpenClawSource GCVE Database

0

Not known to be exploited · CVSS 6.3 Medium : upgrade to 2026.4.2 when convenient.

Data as of 27 Oct 2026, 00:21 UTC

CVSS 4.0 base score
6.3Medium
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 2026.4.2
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 28 Apr 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade OpenClaw to 2026.4.2.

Affected software

ProductAffectedFixed in
OpenClaw OpenClawAffected
  • <2026.4.2
Fixed in
  • 2026.4.2

AI-suggested

A fixed version is available starting from OpenClaw 2026.4.2 that addresses this timing side channel vulnerability. Users should upgrade to version 2026.4.2 or later to remediate this issue. No other mitigation steps are indicated.

Description

OpenClaw versions before 2026.4.2 have a timing side channel vulnerability due to early length-mismatch checks in shared-secret comparisons. This allows attackers to measure timing differences and infer secret-length information, weakening the intended constant-time security for shared secrets. The vulnerability is identified as CWE-208 and has a medium severity with a CVSS score of 6.3.

References

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