Auth bypass in Coralos Coral Server
CVE-2026-30968
Coral Server is open collaboration infrastructure that enables communication, coordination, trust and payments for The Internet of Agents. Prior to 1.1.0, the SSE endpoint (/sse/v1/...) in Coral Server did not strongly validate that a connecting agent was a legitimate participant in the session. This could theoretically allow unauthorized message injection or observation. This vulnerability is fixed in 1.1.0.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (36.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 36.3% 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: 0.004 · change: +0.001
Affected products
- Coralos Coral Server
- Coral-Protocol Coral-Server — versions < 1.1.0
Weakness classification (CWE)
References
- github.com/Coral-Protocol/coral-server/security/advisories/GHSA-2rj5-3pgm-xqw9 (Vendor Advisory)
- github.com/Coral-Protocol/coral-server/releases/tag/v1.1.0 (Release Notes)
Frequently asked questions
- What is CVE-2026-30968?
- CVE-2026-30968 is a critical-severity vulnerability in Coralos Coral Server, classified under Missing Authorization. CVSS score: 9.8/10. Published 2026-03-10.
- How severe is CVE-2026-30968?
- Critical severity. CVSS v3 base score is 9.8 out of 10.