CVE-2026-28459highCWE-73

CVE-2026-28459: high-severity vulnerability in OpenClaw

OpenClaw < 2026.2.12 - Arbitrary File Write via Untrusted sessionFile Path

Published · Updated

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.1epss 0.6%
exploitation probability
0.6%top 56% of all CVEs
observed exploitation
nono source reports it
OpenClaw versions prior to 2026.2.12 fail to validate the sessionFile path parameter, allowing authenticated gateway clients to write transcript data to arbitrary locations on the host filesystem. Attackers can supply a sessionFile path outside the sessions directory to create files and append data repeatedly, potentially causing configuration corruption or denial of service.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
Affected products
OpenClaw · OpenClaw
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References
https://github.com/openclaw/openclaw/commit/25950bcbb8ba4d8cde002557f6e27c219ae4dedahttps://github.com/openclaw/openclaw/commit/4199f9889f0c307b77096a229b9e085b8d856c26https://github.com/openclaw/openclaw/security/advisories/GHSA-64qx-vpxx-mvqfhttps://www.vulncheck.com/advisories/openclaw-arbitrary-file-write-via-untrusted-sessionfile-path