CVE-2026-59320

In Spring AMQP the link credit never replenished on listener exception path

MEDIUM
6.5
CVSS Score
Published: August 27, 2026 at 06:04 PM UTC
Updated: August 31, 2026 at 05:36 PM UTC
2 products affected across 2 vendorsSpring Advanced Message Queuing ProtocolSpring Advanced Message Queuing Protocol

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

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

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

4.1.0 ≤ v < 4.1.1
Affected range stops below 4.1.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: cverecord
https://spring.io/security/cve-2026-59320

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUMvmware
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-772

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