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VulnerabilityPublished

CVE-2026-41338: OpenClaw · Time-of-check Time-of-use (TOCTOU) Race Condition

Affects OpenClawSource GCVE Database

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Not known to be exploited · CVSS 4.3 Medium : upgrade to 2026.3.31 when convenient.

Data as of 12 Nov 2026, 01:18 UTC

CVSS 4.0 base score
4.3Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (VulnCheck)CVSS 4.04.3
CNA (VulnCheck)CVSS 3.15.0
Patch
Available – fixed in 2026.3.31
CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:P/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 23 Apr 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: 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 11 Nov 2026.

What to do

Upgrade OpenClaw to 2026.3.31.

Affected software

ProductAffectedFixed in
OpenClaw OpenClawAffected
  • <2026.3.31
Fixed in
  • 2026.3.31

AI-suggested

If you cannot patch yet, restricting user privileges and minimizing exposure to untrusted inputs that trigger these operations may reduce risk.

Description

CVE-2026-41338 is a time-of-check to time-of-use (TOCTOU) race condition vulnerability in OpenClaw versions before 2026.3.31. It affects sandbox file operations where attackers can exploit check-then-act patterns in functions like apply_patch, remove, and mkdir to bypass file descriptor-based defenses by manipulating files between validation and execution.

References

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