CVE-2026-28459

Impact

## Summary In OpenClaw versions prior to 2026.2.12, the gateway accepted an untrusted `sessionFile` path when resolving the session transcript file. This could allow an authenticated gateway client to create and append OpenClaw session transcript records at an arbitrary path on the gateway host. ## Affected Versions - Affected: openclaw `< 2026.2.12` - Patched: openclaw `>= 2026.2.12` (recommended: `>= 2026.2.13`) ## Impact An authenticated gateway client could influence where the gateway writes transcript data by supplying `sessionFile` outside of the sessions directory. Depending on deployment and filesystem permissions, this may enable arbitrary file creation and repeated appends, leading to configuration corruption and/or denial of service. This issue does not, by itself, provide a proven remote code execution path. ## Fix The transcript path is now constrained to the sessions directory via `resolveSessionFilePath(...)` containment checks. Fix commits: - 4199f9889f0c307b77096a229b9e085b8d856c26 - (compat) 25950bcbb8ba4d8cde002557f6e27c219ae4deda ## Credits Thanks to @tubadeligoz for the report.

Affected packages

Affected products

Weakness classification

References

• NVD record
• CVE.org record
• GitHub advisory
• https://github.com/openclaw/openclaw/commit/25950bcbb8ba4d8cde002557f6e27c219ae4deda
• https://github.com/openclaw/openclaw/commit/4199f9889f0c307b77096a229b9e085b8d856c26
• https://github.com/openclaw/openclaw/security/advisories/GHSA-64qx-vpxx-mvqf
• https://www.vulncheck.com/advisories/openclaw-arbitrary-file-write-via-untrusted-sessionfile-path
• https://github.com/advisories/GHSA-64qx-vpxx-mvqf
• https://github.com/openclaw/openclaw/releases/tag/v2026.2.12
• https://nvd.nist.gov/vuln/detail/CVE-2026-28459