In Spring AMQP the link credit never replenished on listener exception path
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Deferred Red Hat: fix deferred
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-772.
Summary
When a container-level ErrorHandler is configured (the mitigation for finding 221000), each delivery whose processing throws still permanently consumes one link credit. After initialCredits (default 100) failing messages the receiver's credit reaches zero and the broker stops delivering, leaving the listener silently stalled while isRunning() remains true. Spring AMQP 4.1.0
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Fuse 7 | Affected | No fix planned: Out of support scope |
| Red Hat build of Apache Camel 4 for Quarkus 3 | Affected | No fix yet: Fix deferred |
Timeline
- 2026-10-02 Threatist record created from CVE-2026-59320
- 2026-10-03 Alias added: GHSA-c8qp-wm54-v9v5
- 2026-11-06 Affected versions changed · Red Hat
- 2026-11-06 CVSS score added · Red Hat
References
More VMware Spring Advanced Message Queuing Protocol vulnerabilities
- TI-2016-01983 org.springframework.core.serializer.DefaultDeserializer in Spring AMQP before 1.5.5… CVSS 3.1CRITICAL 9.8
- TI-2026-42408 Deserialization of untrusted data in VMware Spring AMQP CVSS 3.1MEDIUM 6.6
- TI-2026-42406 Log4j2 AmqpAppender disables TLS hostname verification by default CVSS 3.1MEDIUM 6.8
- TI-2021-05100 Deserialization of untrusted data in Spring AMQP CVSS 3.1MEDIUM 6.5
- TI-2021-05098 Deserialization of untrusted data in Spring AMQP CVSS 3.1MEDIUM 6.5
- TI-2026-42405 Admin password disclosed in BrokerNotAliveException message CVSS 3.1MEDIUM 6.5
Sources
- CVE-2026-59320 · CVE Program
- CVE-2026-59320 · NVD
- FIRST EPSS
- GHSA-c8qp-wm54-v9v5 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-59320 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences