Coral Server up to 1.0.x SSE Endpoint /sse/v1/ authorization

CVSS Meta Temp Score
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CTI Interest Score
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7.9$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Coral Server up to 1.0.x. Affected by this issue is some unknown functionality of the file /sse/v1/ of the component SSE Endpoint. Such manipulation leads to authorization. This vulnerability is referenced as CVE-2026-30968. It is possible to launch the attack remotely. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Coral Server up to 1.0.x. Affected by this issue is an unknown functionality of the file /sse/v1/ of the component SSE Endpoint. The manipulation with an unknown input leads to a authorization vulnerability. Using CWE to declare the problem leads to CWE-862. The product does not perform an authorization check when an actor attempts to access a resource or perform an action. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-30968 since 03/07/2026. The exploitation is known to be easy. The attack may be launched remotely. There are known technical details, but no exploit is available.

Upgrading to version 1.1.0 eliminates this vulnerability. The upgrade is hosted for download at github.com.

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Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 7.9

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Authorization
CWE: CWE-862 / CWE-863 / CWE-285
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Server 1.1.0

Timelineinfo

03/07/2026 CVE reserved
03/10/2026 +3 days Advisory disclosed
03/10/2026 +0 days VulDB entry created
03/14/2026 +4 days VulDB entry last update

Sourcesinfo

Advisory: GHSA-2rj5-3pgm-xqw9
Status: Confirmed

CVE: CVE-2026-30968 (🔒)
GCVE (CVE): GCVE-0-2026-30968
GCVE (VulDB): GCVE-100-350120

Entryinfo

Created: 03/10/2026 20:00
Updated: 03/14/2026 02:54
Changes: 03/10/2026 20:00 (69), 03/14/2026 02:54 (12)
Complete: 🔍
Cache ID: 216::103

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