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CVE-2026-59320— In Spring AMQP the link credit never replenished on listener exception path

Quick assessment

Affected
Spring Spring AMQP
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

当配置了容器级别的错误处理器（ErrorHandler）（这是针对发现项 221000 的缓解措施）时，任何在处理过程中抛出异常的投递仍会永久消耗一个链路信用点（link credit）。在 initialCredits（默认值 100）条消息失败后，接收方的信用点降至零，代理服务器（broker）便停止投递，导致监听器（listener）陷入静默停滞状态，而 isRunning() 方法仍返回 true。 Spring AMQP 4.1.0

CVSS 6.5 · Medium EPSS 0.29% · P21

Affected Version Matrix 1

VendorProduct Version RangeStatus
Spring Spring AMQP 4.1.0 affected
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I. Basic Information for CVE-2026-59320

Vulnerability Information
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Vulnerability Title
In Spring AMQP the link credit never replenished on listener exception path
Source: CVE Program / CVE List V5
Vulnerability 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
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Spring Spring AMQP 4.1.0 -

II. Public POCs for CVE-2026-59320

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III. Intelligence Information for CVE-2026-59320

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Vendor Advisories for CVE-2026-59320 (1)

Same Patch Batch · Spring · 2026-08-27 · 64 CVEs total

CVE-2026-59270 9.4 CRITICAL Spring Security embedded UnboundID LDAP server exposes well-known administrative bind DN o
CVE-2026-59324 8.2 HIGH fluxTransform shared RequestMessageHolder causes cross-message header leakage under async
CVE-2026-59316 8.2 HIGH Spring Authorization Server Default Consent Page is vulnerable to Cross-Site Scripting (XS
CVE-2026-47877 8.2 HIGH Spring Security Authorization Server Default Consent Page is vulnerable to Cross-Site Scri
CVE-2026-59307 8.0 HIGH Deserialization allow-list silently bypassed: setBeanClassLoader replaces deserializer but
CVE-2026-47879 7.7 HIGH Spring Cloud Gateway SSRF and native file access with gRPC
CVE-2026-47849 7.1 HIGH Spring Data REST allows mutation of identifier and version properties via JSON Patch
CVE-2026-59311 6.8 MEDIUM Fixed predictable /tmp/ziptransformer work directory enables symlink pre-creation
CVE-2026-59272 6.8 MEDIUM Log4j2 AmqpAppender disables TLS hostname verification by default
CVE-2026-59293 6.6 MEDIUM SMB minimum protocol dialect defaults to SMB1
CVE-2026-59275 6.6 MEDIUM Remote JVM termination: nested-array Java deserialization bypasses allowlist, triggers Sta
CVE-2026-59284 6.6 MEDIUM Spring Cloud Commons no allow list for writable env actuator endpoint
CVE-2026-59317 6.5 MEDIUM In Spring for Apache Kafka, missing header validation in DeadLetterPublishingRecovererFact
CVE-2026-59274 6.5 MEDIUM Unbounded decompression in UnZipTransformer enables zip-bomb DoS
CVE-2026-59278 6.5 MEDIUM In Spring for Apache Kafka, SSRF via DNS resolution triggered by untrusted java.net types
CVE-2026-47864 6.4 MEDIUM Unsafe Java deserialization in SerializingHttpMessageConverter — remote code execution
CVE-2026-59322 6.3 MEDIUM EmbeddedHeadersJsonMessageMapper default gives wire peer full control of MessageHeaders
CVE-2026-59276 5.9 MEDIUM Timing Attack via Non-Constant-Time Comparison of Sensitive Values
CVE-2026-47881 5.9 MEDIUM Denial of Service in Spring Batch FlatFileItemReader via Malformed Input File
CVE-2026-59294 5.9 MEDIUM Arbitrary File Write via Path Traversal in ResourceCacheService

Showing top 20 of 64 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Spring AMQP
Same vendor: Spring

V. Comments for CVE-2026-59320

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