CVE-2026-44118

Name: CVE-2026-44118
Creator: NVD / NIST
Published: 2026-05-06T20:16:35.9+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.5/10EPSS 0.11%

Last modified Jun 17, 2026

CVE-2026-44118 is a high-severity vulnerability rated 8.5/10 on the CVSS scale. OpenClaw before 2026.4.22 derives loopback MCP owner context from spoofable server-issued bearer tokens in request headers. Non-owner loopback clients can present themselves as owner to bypass owner-gated operations by manipulating the sender-owner header metadata.. EPSS estimates a 0.11% chance of exploitation in the next 30 days.

Description

OpenClaw before 2026.4.22 derives loopback MCP owner context from spoofable server-issued bearer tokens in request headers. Non-owner loopback clients can present themselves as owner to bypass owner-gated operations by manipulating the sender-owner header metadata.

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS 4.0

8.5/10

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.11%

1.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-290

Affected Software

Vendor	Product	Versions
Openclaw	Openclaw	< 2026.4.22

References

https://github.com/openclaw/openclaw/commit/3cb1a56bfc9579a0f2336f9cfa12a8a744332a19Patch
https://github.com/openclaw/openclaw/security/advisories/GHSA-r6xh-pqhr-v4xhMitigation, Vendor Advisory
https://www.vulncheck.com/advisories/openclaw-owner-context-spoofing-via-bearer-token-headerThird Party Advisory

Timeline

Published: May 6, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-44118?

How severe is CVE-2026-44118?

CVE-2026-44118 has a CVSS score of 8.5/10 (HIGH severity). The EPSS model estimates a 0.11% probability of exploitation in the next 30 days.

How do I fix CVE-2026-44118?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-44118?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST