PT-2026-35560 · Openclaw · Openclaw

Keensecuritylab + 1 · Published 2026-04-07 · Updated 2026-04-28 · CVE-2026-41372

Positive Technologies (AI Summary)

CVSS v3.1

5.8

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N

Name of the Vulnerable Software and Affected Versions OpenClaw versions prior to 2026.4.2

Description The software fails to normalize trailing-dot localhost hosts in remote CDP (Chrome DevTools Protocol) discovery responses. This allows the bypass of loopback protections, enabling attackers to craft hostile discovery responses returning localhost. to retarget authenticated browser control toward localhost endpoints and expose browser state.

Recommendations Update to version 2026.4.2.

Fix

IDOR

RCE

Weakness Enumeration

CWE-639

CWE-20

Related Identifiers

CVE-2026-41372

GHSA-F5FM-9JMP-C88R

GHSA-FH32-73R9-RGH5

Affected Products

Openclaw

References · 9

• https://github.com/openclaw/openclaw/commit/9c22d636697336a6b22b0ae24798d8b8325d7828 · Patch
• https://github.com/openclaw/openclaw/security/advisories/GHSA-fh32-73r9-rgh5 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-41372 · Security Note
• https://osv.dev/vulnerability/GHSA-f5fm-9jmp-c88r · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-fh32-73r9-rgh5 · Vendor Advisory
• https://github.com/openclaw/openclaw · Note
• https://t.me/CVEtracker/52014 · Telegram Post
• https://vulncheck.com/advisories/openclaw-loopback-protection-bypass-via-trailing-dot-localhost-in-cdp-discovery · Note
• https://twitter.com/CVEarity/status/2049055140842467654 · Twitter Post