CVE-2026-100557

OpenClaw before 2026.8.1 Authorization Bypass via Skill Tool Dispatch

Published Sep 26, 2026 CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed

Description

OpenClaw versions before 2026.8.1 contain an authorization bypass vulnerability in skill tool dispatch that fails to carry the sender's owner status. Non-owner senders authorized to invoke skill commands can access owner-only tools and server credentials reserved for owners.

Analysis

Technical impact

The vulnerability is an authorization bypass in skill tool dispatch that fails to preserve the sender’s owner status. Non‑owner senders authorized to invoke skill commands can gain access to tools and server credentials normally restricted to owners, leading to significant confidentiality and integrity risks. This flaw is classified as CWE‑863.

Affected Systems

The affected product is OpenClaw from the OpenClaw vendor. All releases prior to version 2026.8.1 are impacted; no other patch levels are listed in the advisory.

Risk and Exploitability

The CVSS score of 8.7 denotes a high severity. EPSS is not available, making the precise exploitation probability unclear. The vulnerability is not listed in the CISA KEV catalog. Based on the description, the likely attack vector is via the skill tool dispatch interface, which is accessible to all users. Successful exploitation yields owner‑level access to sensitive tools and credentials without additional privileges.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

OpenClaw

unaffected

Version	Status	Constraints
`0`	affected	< 2026.8.1
`2026.8.1`	unaffected	—

No data.

Vendor Product Versions

Openclaw

Version	Status	Scheme	Platform
`[0,2026.8.1)`	affected	generic	—
`[2026.8.1,*]`	unaffected	generic	—

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

Upgrade OpenClaw to version 2026.8.1 or later to apply the authorization logic fix.
If an immediate upgrade is not possible, restrict access to the skill tool dispatch endpoint so that only owners can invoke it, via configuration settings or firewall rules.
Conduct a review of the system to ensure no unauthorized skill command endpoints remain exposed and that permission checks for owner‑only tools are enforced.

Generated by OpenCVE AI on September 26, 2026 at 05:16 UTC.

Tracking

Advisories

No advisories available

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.237% probability within 30 days)

Exploitation none

Automatable no

Technical Impact total

References

Link	Providers
https://github.com/openclaw/openclaw/security/advisories/GHSA-7cp7-87pj-p32v
https://www.vulncheck.com/advisories/openclaw-before-2026.8.1-authorization-bypass-via-skill-tool-dispatch

History

Sep 29, 2026 6:30 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Sep 26, 2026 2:30 AM Description updated. Title updated. First appearance in the feed. Weaknesses updated. Affected versions updated. Affected vendors updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		OpenClaw versions before 2026.8.1 contain an authorization bypass vulnerability in skill tool dispatch that fails to carry the sender's owner status. Non-owner senders authorized to invoke skill commands can access owner-only tools and server credentials reserved for owners.
Title		OpenClaw before 2026.8.1 Authorization Bypass via Skill Tool Dispatch
First Time appeared		Openclaw Openclaw openclaw
Weaknesses		CWE-863
CPEs		cpe:2.3:a:openclaw:openclaw::::::::
Vendors & Products		Openclaw Openclaw openclaw
References		https://github.com/openclaw/openclaw/security/advisories/GHSA-7cp7-87pj-p32v https://www.vulncheck.com/advisories/openclaw-before-2026.8.1-authorization-bypass-via-skill-tool-dispatch
Metrics		cvssV3_1 `{'score': 8.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L'}` cvssV4_0 `{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N'}`