CVE-2026-100547
OpenClaw before 2026.8.1 Authentication Bypass via File URL
- State
- Published
- Severity
- 6.8 Medium
- Published
- Sep 26, 2026
- Updated
- Oct 5, 2026
- Reserved
- Sep 26, 2026
Description
OpenClaw is a coding agent distributed as the npm package `openclaw`. In affected versions (2026.7.1 through 2026.7.2), alternate but valid `file:` URL spellings supplied over the Agent Client Protocol (ACP) were treated as relative paths and were incorrectly classified as reads scoped to the session working directory. When an operator connected `openclaw acp client` to an untrusted or compromised ACP peer, that peer could request a read of a file outside the session working directory without the approval prompt normally required for that path, resulting in disclosure of local file contents. The demonstrated impact is limited to file confidentiality; mutating and command-capable tool classes are not affected. This issue is fixed in OpenClaw 2026.8.1.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.8 Medium | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 5.5 Medium | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N | VulnCheck |
Weaknesses
- CWE-180 Incorrect Behavior Order: Validate Before Canonicalize
Affected Products
| Product | Versions |
|---|---|
OpenClawOpenClaw |
|
References
- GitHub Security Advisory (GHSA-356g-m7rx-7pm3)vendor-advisory
- VulnCheck Advisory: OpenClaw before 2026.8.1 Authentication Bypass via File URLthird-party-advisory
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