Information disclosure in Openclaw
CVE-2026-100543
OpenClaw (npm package openclaw) before 2026.8.1 could include deterministic hashes computed over the original, unredacted configuration in redacted configuration responses. When the Gateway password had low entropy and the remaining configuration values were reconstructable, these hashes acted as offline password verifiers: a caller able to obtain the redacted configuration (for example via config.get) could test password candidates offline without going through the rate-limited Gateway authentication path. Recovering the password could grant the documented shared-secret operator authority. Secret references were not affected in the same way. The issue is fixed in 2026.8.1.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (28.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 28.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
Weakness classification (CWE)
References
- GitHub Security Advisory (GHSA-qgj5-6x35-9g6f) (vendor-advisory)
- VulnCheck Advisory: OpenClaw before 2026.8.1 Information Disclosure via Configuration Hash (third-party-advisory)
Frequently asked questions
- What is CVE-2026-100543?
- CVE-2026-100543 is a high-severity vulnerability in Openclaw, classified under Information Disclosure. CVSS score: 7.5/10. Published 2026-09-26.
- How severe is CVE-2026-100543?
- High severity. CVSS v3 base score is 7.5 out of 10.