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CVE-2023-34040

26
FAUCET Score

CVE-2023-34040 is a deserialization vulnerability affecting Spring for Apache Kafka versions 3.0.9 and earlier, and 2.9.10 and earlier. This vulnerability allows for a potential deserialization attack if specific, non-default configurations are enabled and untrusted sources can publish to a Kafka topic. The CVSS score of 7.8 (High) indicates significant potential impact, including high confidentiality, integrity, and availability compromise, though the attack vector requires local access and low privileges. There is no evidence of active exploitation, public exploit code, or inclusion in CISA's KEV catalog, with only limited community discussion observed.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.8.1, <= 2.9.10CPE matchmatch criteria
cpe:2.3:a:vmware:spring_for_apache_kafka:*:*:*:*:*:*:*:*
>= 3.0.0, <= 3.0.9CPE matchmatch criteria
cpe:2.3:a:vmware:spring_for_apache_kafka:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
1.8
Impact Score
3.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.16%
Probability of exploitation in next 30 days
EPSS Percentile
80.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0216 is in the 97th percentile among its peer group of 17,061 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

mavenpatch availablevia ghsa
Product: org.springframework.kafka:spring-kafkaFixed in: 3.0.10
mavenpatch availablevia ghsa
Product: org.springframework.kafka:spring-kafkaFixed in: 2.9.11

Vendor Advisories (1)

mavenGHSA-crqf-q9fp-hwjwhigh

Spring-Kafka has Java Deserialization vulnerability When Improperly Configured

Aug 24, 2023

References

spring.io / security/cve-2023-34040
MitigationVendor Advisory