Summary
OpenClaw's TOCTOU symlink race in writeFileWithinRoot could create or truncate files outside root boundaries
A symlink-retarget TOCTOU race in writeFileWithinRoot could point an attacker-controlled path alias outside the configured root between resolution and write operations.
Affected and Patched Versions
- Affected:
<= 2026.2.26 - Patched:
2026.3.1
Impact
Affected versions could cause out-of-root write side effects (including file creation or truncation) before final boundary validation.
Affected versions
Security releases
Kodem intelligence
Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.
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See it in your environmentNew to Kodem? Get a demo →Remediation advice
Root-scoped write flow now opens existing files without pre-truncation, creates missing files with exclusive create semantics, truncates only after post-open identity/boundary checks, and removes out-of-root artifacts when a race is detected.
Frequently Asked Questions
- What is GHSA-X82F-27X3-Q89C? GHSA-X82F-27X3-Q89C is a high-severity security vulnerability in openclaw (npm), affecting versions < 2026.3.1. It is fixed in 2026.3.1.
- Which versions of openclaw are affected by GHSA-X82F-27X3-Q89C? openclaw (npm) versions < 2026.3.1 is affected.
- Is there a fix for GHSA-X82F-27X3-Q89C? Yes. GHSA-X82F-27X3-Q89C is fixed in 2026.3.1. Upgrade to this version or later.
- Is GHSA-X82F-27X3-Q89C exploitable, and should I be worried? Whether GHSA-X82F-27X3-Q89C is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
- What actually determines whether GHSA-X82F-27X3-Q89C is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
- How do I fix GHSA-X82F-27X3-Q89C? Upgrade
openclawto 2026.3.1 or later.