CVE-2026-30968 Coral Server has insufficient validation of agent identity for SSE connections
Attackers can inject or observe messages in Coral Server sessions due to insufficient agent identity validation on SSE endpoints.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-30968?
CVE-2026-30968 is a high-severity missing authorization vulnerability in Coral-Protocol coral-server, published on 10 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-862
Which versions are affected by CVE-2026-30968?
It affects 1 product.
Products include Coralos Coral Server.
How do I fix CVE-2026-30968?
No fix has been published for CVE-2026-30968 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-30968 being exploited?
There is no known exploitation of CVE-2026-30968 in the wild and no public exploit code.
Other vulnerabilities in Coral-Protocol coral-server
Sources
Also known as GHSA-2rj5-3pgm-xqw9.