CVE-2026-27524

EUVD-2026-12736
OpenClaw versions prior to 2026.2.21 accept prototype-reserved keys in runtime /debug set override object values, allowing prototype pollution attacks. Authorized /debug set callers can inject __proto__, constructor, or prototype keys to manipulate object prototypes and bypass command gate restrictions.
Prototype Pollution
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
3.1 LOW
NETWORK
HIGH
LOW
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
VulnCheckCNA
3.1 LOW
NETWORK
HIGH
LOW
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Affected Products (NVD)
VendorProductVersion
openclawopenclaw
𝑥
< 2026.2.21
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/openclaw/openclaw/commit/fbb79d4013000552d6a2c23b9613d8b3cb92f6b6
https://github.com/openclaw/openclaw/security/advisories/GHSA-62f6-mrcj-v8h5
https://www.vulncheck.com/advisories/openclaw-prototype-pollution-via-debug-override-path