CVE-2026-59317

In Spring for Apache Kafka, missing header validation in DeadLetterPublishingRecovererFactory enables denial of service via a poison-pill loop

MEDIUM

6.5

CVSS Score

Published: August 27, 2026 at 06:04 PM UTC

Updated: September 4, 2026 at 07:36 PM UTC

2 products affected across 2 vendorsSpring for Apache KafkaSpring For Apache Kafka

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Severity

MEDIUM6.5

Exploit prediction

EPSS 0.4%

SSVC

No known exploit

Description

DeadLetterPublishingRecovererFactory reads the retry_topic-original-timestamp header from an inbound ConsumerRecord and passes its raw bytes directly to new BigInteger(header.value()) with no length or format validation. Spring for Apache Kafka 4.1.0 Spring for Apache Kafka 4.0.0 - 4.0.6 Spring for Apache Kafka 3.0.0 - 3.3.16 Spring for Apache Kafka 2.9.0 - 2.9.14 Spring for Apache Kafka 2.8.12 and earlier

Affected

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

Spring for Apache Kafka · VMware

95%

v ≤ 2.8.122.9.0 ≤ v ≤ 2.9.143.0.0 ≤ v ≤ 3.3.164.0.0 ≤ v < 4.0.74.1.0 ≤ v < 4.1.1

Affected range stops below 4.0.7, so it looks safe — our inference, not a vendor statement

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

Spring For Apache Kafka · Spring

60%

v ≤ 2.8.122.9.0 ≤ v ≤ 2.9.143.0.0 ≤ v ≤ 3.3.164.0.0 ≤ v ≤ 4.0.62.9.0 3.0.0 4.0.0 4.1.0

Remediation

No guide yet

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

Patch and advisory references

https://spring.io/security/cve-2026-59317

References (1)

Vendor Advisory

Source: cverecord

https://spring.io/security/cve-2026-59317

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-1284

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