CVE-2026-41726GHSA-XVFQ-4Q6Q-GXX7
In Spring for Apache Kafka, unbounded delegate cache keyed on user-controlled, potentially malicious selector header
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 4.0.5.1, 3.3.15.1, 3.2.14, 2.9.14, 2.8.12, and 2 more
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
When an application opts into DelegatingDeserializer, a producer can grow the consumer's heap without bound by sending records with unique random spring.kafka.serialization.selector header values, eventually causing GC thrash and OutOfMemoryError. Affected versions: Spring for Apache Kafka 4.0.0 through 4.0.5; 3.3.0 through 3.3.15; 3.2.0 through 3.2.13; 2.9.0 through 2.9.13; 2.8.0 through 2.8.11.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- Spring Spring for Apache Kafka
From 4.0.0 · fixed in 4.0.5.1; From 3.3.0 · fixed in 3.3.15.1; From 3.2.0 · fixed in 3.2.14; From 2.9.0 · fixed in 2.9.14; From 2.8.0 · fixed in 2.8.12
- org.springframework.kafka:spring-kafkaMaven
From 4.0.0 · fixed in 4.0.6
- org.springframework.kafka:spring-kafkaMaven
From 3.3.0 · fixed in 3.3.16
- org.springframework.kafka:spring-kafkaMaven
From 3.2.0 · through 3.2.13
- org.springframework.kafka:spring-kafkaMaven
From 2.9.0 · through 2.9.13
- org.springframework.kafka:spring-kafkaMaven
through 2.8.11