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Centrifugo EUVD-2026-11716

| CVE-2026-32301 CRITICAL
Server-Side Request Forgery (SSRF) (CWE-918)
2026-03-13 security-advisories@github.com GHSA-j77h-rr39-c552
SSRF Centrifugo Suse
9.3
CVSS 3.1 · GitHub Advisory
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Severity by source

GitHub Advisory PRIMARY
9.3 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N
SUSE
CRITICAL
qualitative

Primary rating from GitHub Advisory.

CVSS VectorGitHub Advisory

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
Low
Availability
None

Lifecycle Timeline

5
Patch released
Mar 31, 2026 - 21:13 nvd
Patch available
PoC Detected
Mar 18, 2026 - 18:02 vuln.today
Public exploit code
EUVD ID Assigned
Mar 13, 2026 - 20:00 euvd
EUVD-2026-11716
Analysis Generated
Mar 13, 2026 - 20:00 vuln.today
CVE Published
Mar 13, 2026 - 19:54 nvd
CRITICAL 9.3

DescriptionGitHub Advisory

Centrifugo is an open-source scalable real-time messaging server. Prior to 6.7.0, Centrifugo is vulnerable to Server-Side Request Forgery (SSRF) when configured with a dynamic JWKS endpoint URL using template variables (e.g. {{tenant}}). An unauthenticated attacker can craft a JWT with a malicious iss or aud claim value that gets interpolated into the JWKS fetch URL before the token signature is verified, causing Centrifugo to make an outbound HTTP request to an attacker-controlled destination. This vulnerability is fixed in 6.7.0.

AnalysisAI

SSRF in Centrifugo real-time messaging before 6.7.0.

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Craft JWT with malicious iss/aud claim
Exploit
Centrifugo interpolates claim into JWKS URL template
Execution
Server makes HTTP request to attacker destination
Impact
Attacker receives internal network data
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Vulnerability AssessmentAI

Exploitation Centrifugo configured with dynamic JWKS endpoint URL containing template variables (e.g., {{tenant}}, {{iss}}, {{aud}}). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment CVSS 9.3. Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario SSRF through messaging server.
Remediation Update. Detailed patch versions, workarounds, and compensating controls in full report.
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Recommended ActionAI

Within 24 hours: Identify all Centrifugo instances in your environment and document their versions and JWKS configurations. …

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Threat intelligence, references, and detailed analysis are available after sign-in.

Vendor StatusVendor

SUSE

Severity: Critical
Product Status
openSUSE Leap 15.6 Fixed
SUSE Linux Enterprise Module for Package Hub 15 SP5 Fixed
SUSE Linux Enterprise Module for Package Hub 15 SP6 Fixed
openSUSE Leap 15.5 Fixed

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EUVD-2026-11716 vulnerability details – vuln.today
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