CVE-2026-27524

Medium

Description

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.

SeverityMedium

CVSS4.3

Exploit probability—

ProductOpenclaw

PublishedMar 18, 2026

First seenMar 18, 2026

Weakness typeCWE-1321Prototype pollution

How to fix

Update

openclaw openclaw2026.2.21 or later
openclaw2026.2.21 or later

Patches

github.com/openclaw/openclaw/commit/fbb79d4013000552d6a2c23b9613d8b3cb92f6b6

Vendor advisories

github.com/openclaw/openclaw/security/advisories/GHSA-62f6-mrcj-v8h5

Affected products

Product	Affected versions	Fixed in
openclaw openclaw	v < 2026.2.21	2026.2.21
openclawnpm	v < 2026.2.21	2026.2.21

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.