Vulnerability · Published Apr 10, 2026 · Assigned by VulnCheck

CVE-2026-35651OpenClaw 2026.2.13 < 2026.3.25 - ANSI Escape Sequence Injection in Approval Prompt

Medium 4.3

In plain English

A medium-severity security flaw in OpenClaw from OpenClaw. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 18% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)0.3%top 82.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

OpenClaw versions 2026.2.13 through 2026.3.24 contain an ANSI escape sequence injection vulnerability in approval prompts that allows attackers to spoof terminal output. Untrusted tool metadata can carry ANSI control sequences into approval prompts and permission logs, enabling attackers to manipulate displayed information through malicious tool titles.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	openclaw	2026.3.28	GHSA-4hmj-39m8-jwc7

Affected products (as reported)

Vendor	Product	Versions
OpenClaw	OpenClaw	2026.2.13 – through 2026.3.24

Weakness: CWE-150 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

References

GitHub Security Advisory (GHSA-4hmj-39m8-jwc7) vendor-advisory
Patch Commit patch
VulnCheck Advisory: OpenClaw 2026.2.13 < 2026.3.25 - ANSI Escape Sequence Injection in Approval Prompt third-party-advisory