Medium severity · published Aug 27, 2026
CVE-2026-59320
In Spring AMQP the link credit never replenished on listener exception path
6.5
CVSS
0.4%
EPSS
No
On KEV
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
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 36% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SA
Spring AMQP · Spring
4.1.0 · source: vendor
SA
Spring Advanced Message Queuing Protocol · Vmware
4.1.0 before 4.1.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-59320
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-59320
Vendor Advisory
https://spring.io/security/cve-2026-59320
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