In Spring for Apache Kafka, missing header validation in DeadLetterPublishingRecovererFactory enables denial of service via a poison-pill loop (CVE-2026-59317) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-59317

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

Answer in brief

CVE-2026-59317 records a Unknown severity vulnerability in In Spring for Apache Kafka, missing header validation in DeadLetterPublishingRecovererFactory enables denial of service via a poison-pill loop. The current sources do not mark it as known exploited. The current feed maps Spring/Spring for Apache Kafka (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 27, 2026Updated Aug 27, 2026Source checked Aug 27, 2026First seen by HOL Aug 27, 2026Material review Aug 27, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Spring/Spring for Apache Kafka (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Spring/Spring for Apache Kafkageneric	4.1.0 \|\| 4.0.0 \|\| 3.0.0 \|\| 2.9.0 \|\| 0	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Spring/Spring for Apache Kafka.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Aug 27, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 27, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 27, 2026

Sources and claim methodology

Source referencespring.io

Upstream source 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

Quoted source text, attributed separately from HOL analysis.