by Kastro
Paper/Archive/CVE-2026-30968

CVE-2026-30968

Coral-Protocol coral-server — Coral Server has insufficient validation of agent identity for SSE connections

EPSS 0.4%CVSS 9.8
critical.is priorityof 100
35
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 29.6.296 × 205.9No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
coral-server< 1.1.0–CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
GitHub_M (CNA)8.6CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

refgithub.com/Coral-Protocol/coral-server/security/advisories/GHSA-2rj5-3pgm-xqw9refgithub.com/Coral-Protocol/coral-server/releases/tag/v1.1.0