High severity · published Mar 18, 2026
CVE-2026-27523
OpenClaw < 2026.2.24 - Sandbox Bind Validation Bypass via Symlink-Parent Missing-Leaf Paths
7.5
CVSS
0.3%
EPSS
No
On KEV
Description
OpenClaw versions prior to 2026.2.24 contain a sandbox bind validation vulnerability allowing attackers to bypass allowed-root and blocked-path checks via symlinked parent directories with non-existent leaf paths. Attackers can craft bind source paths that appear within allowed roots but resolve outside sandbox boundaries once missing leaf components are created, weakening bind-source isolation enforcement.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 18% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
OpenClaw · OpenClaw
before 2026.2.24 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-27523
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-27523
Patch
https://github.com/openclaw/openclaw/commit/b5787e4abba0dcc6baf09051099f6773c1679ec1
Vendor Advisory
https://github.com/openclaw/openclaw/security/advisories/GHSA-m8v2-6wwh-r4gc
Third Party Advisory
https://www.vulncheck.com/advisories/openclaw-sandbox-bind-validation-bypass-via-symlink-parent-missing-leaf-paths
More from OpenClaw
9.9
CVE-2026-41329
OpenClaw < 2026.3.31 - Sandbox Bypass via Heartbeat Context Inheritance and senderIsOwner Escalation
9.9
CVE-2026-33579
OpenClaw < 2026.3.28 - Privilege Escalation via Missing Caller Scope Validation in Device Pair Approval
9.9
CVE-2026-32922
OpenClaw < 2026.3.11 - Privilege Escalation via Unvalidated Scope in device.token.rotate
9.9
CVE-2026-32048
OpenClaw < 2026.3.1 - Sandbox Escape via Cross-Agent sessions_spawn
9.9
CVE-2026-22172
OpenClaw < 2026.3.12 - Scope Elevation in WebSocket Shared-Auth Connections