Vulnerability in Openclaw
CVE-2026-27545
OpenClaw versions prior to 2026.2.26 contain an approval bypass vulnerability in system.run execution that allows attackers to execute commands from unintended filesystem locations by rebinding writable parent symlinks in the current working directory after approval. An attacker can modify mutable parent symlink path components between approval and execution time to redirect command execution to a different location while preserving the visible working directory string.
Vulnerability class: TOCTOU (Time-of-Check to Time-of-Use)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L.
EPSS exploit prediction
EPSS: 0.001 (2.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 3rd percentile — 2.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: +0.000
Affected products
- Openclaw — versions 0
Weakness classification (CWE)
References
- github.com/openclaw/openclaw/security/advisories/GHSA-f7ww-2725-qvw2 (vendor-advisory, Vendor Advisory, third-party-advisory)
- github.com/openclaw/openclaw/commit/78a7ff2d50fb3bcef351571cb5a0f21430a340c1 (Patch, patch)
- github.com/openclaw/openclaw/commit/d82c042b09727a6148f3ca651b254c4a677aff26 (Patch, patch)
- github.com/openclaw/openclaw/commit/d06632ba45a8482192792c55d5ff0b2e21abb0a7 (Patch, patch)
- github.com/openclaw/openclaw/commit/4e690e09c746408b5e27617a20cb3fdc5190dbda (Patch, patch)
- github.com/openclaw/openclaw/commit/4b4718c8dfce2e2c48404aa5088af7c013bed60b (Patch, patch)
- www.vulncheck.com/advisories/openclaw-approval-bypass-via-parent-symlink-curren… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-27545?
- CVE-2026-27545 is a medium-severity vulnerability in Openclaw, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 6.1/10. Published 2026-03-18.
- How severe is CVE-2026-27545?
- Medium severity. CVSS v3 base score is 6.1 out of 10.