CVE-2026-101880: Auth Bypass (CVSS 8.8)

Description

OpenClaw Windows Node before 2026.7.1 contains an incorrect authorization vulnerability in the system.run exec-approval policy where ExecShellWrapperParser fails to split commands on pipe operators or extract command substitutions. Connected gateways or agents can bypass approval rules by placing denied commands behind allowed prefixes using pipe operators or command substitution syntax, achieving arbitrary command execution on Windows hosts.

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CVSS v3.1 Score

8.8

HIGH

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

EPSS — Exploit Prediction

0.0069

Probability of exploitation

0.51%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-863 Incorrect Authorization

References

Other References

https://github.com/openclaw/openclaw-windows-node/blob/v0.6.12/src/OpenClaw.Shared/ExecShellWrapperParser.cs#L253 https://github.com/openclaw/openclaw-windows-node/commit/2077aa3e7159101bddcee2f4efcb9d604a81619e https://github.com/openclaw/openclaw-windows-node/releases/tag/v2026.7.1 https://github.com/openclaw/openclaw-windows-node/security/advisories/GHSA-r3x2-vf2f-vvj8 https://github.com/openclaw/openclaw-windows-node/security/advisories/GHSA-vg38-vjq2-vgvh https://www.vulncheck.com/advisories/openclaw-windows-node-before-2026.7.1-authorization-bypass https://github.com/openclaw/openclaw-windows-node/security/advisories/GHSA-r3x2-vf2f-vvj8

Frequently Asked Questions

What is CVE-2026-101880? +

OpenClaw Windows Node before 2026.7.1 contains an incorrect authorization vulnerability in the system.run exec-approval policy where ExecShellWrapperParser fails to split commands on pipe operators or extract command substitutions. Connected gateways or agents can bypass approval rules by placing denied commands behind allowed prefixes using pipe operators or command substitution syntax, achieving arbitrary command execution on Windows hosts. It has a CVSS v3.1 base score of 8.8 (HIGH).

How severe is CVE-2026-101880? +

CVE-2026-101880 has a CVSS v3.1 score of 8.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0069, placing it in the 1th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-101880? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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