Vulnerability · Published Sep 26, 2026 · Assigned by VulnCheck
CVE-2026-100528OpenClaw before 2026.8.1 Credential Disclosure via Provider Endpoint
Medium 5.4
In plain English
A medium-severity information exposure in OpenClaw from OpenClaw. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities).
Official description
OpenClaw (npm package 'openclaw') before 2026.8.1 could send third-party provider credentials to the wrong endpoint. In affected versions, when a third-party provider uses an OpenAI-compatible API and the resolved model metadata lacks a concrete base URL, a pinned session that continues after a model configuration hot reload retains that provider's credential while the OpenAI SDK selects its own default endpoint. A resulting request could disclose the configured third-party provider credential to an unrelated provider endpoint and fail with a misleading authentication error. Operators who observed this condition should rotate the affected credential. The issue is fixed in 2026.8.1.
Affected products (as reported)
Weakness: CWE-200 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:L
References
- GitHub Security Advisory (GHSA-vhpg-cq3w-v8p9) vendor-advisory
- VulnCheck Advisory: OpenClaw before 2026.8.1 Credential Disclosure via Provider Endpoint third-party-advisory