Auth bypass in Rustfs
CVE-2026-55188
RustFS is a distributed object storage system built in Rust. From 1.0.0-alpha.1 until 1.0.0-beta.9, RustFS contains an authorization bypass in the bucket replication admin API. The ListRemoteTargetHandler handler for listing remote replica…
Vulnerability class: Information Disclosure
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N.
Affected products
- Rustfs — versions >= 1.0.0-alpha.1, <= 1.0.0-beta.8
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
Frequently asked questions
- What is CVE-2026-55188?
- CVE-2026-55188 is a high-severity vulnerability in Rustfs, classified under Information Disclosure. CVSS score: 8.2/10. Published 2026-06-26.
- How severe is CVE-2026-55188?
- High severity. CVSS v3 base score is 8.2 out of 10.