Vulnerability in Openclaw
CVE-2026-28459
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.
EPSS: 0.004 (28.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H.
Affected products
- Openclaw — versions 0
Weakness classification (CWE)
References
- disclosure@vulncheck.com (vendor-advisory, Patch, Vendor Advisory)
- disclosure@vulncheck.com (Patch, patch)
- disclosure@vulncheck.com (Patch, patch)
- disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-28459?
- CVE-2026-28459 is a high-severity vulnerability in Openclaw, classified under External Control of File Name or Path. CVSS score: 7.1/10. Published 2026-03-05.
- How severe is CVE-2026-28459?
- High severity. CVSS v3 base score is 7.1 out of 10.