CVE-2026-28459
OpenClaw has an arbitrary transcript path file write via gateway sessionFile
Description
## 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.
How to fix CVE-2026-28459
To remediate CVE-2026-28459, upgrade the affected package to a fixed version below.
- —upgrade to 2026.2.12 or later
Is CVE-2026-28459 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 2026.2.12
CVSS scores
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