Is CVE-2025-27817 known to be exploited?

10 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Apache Software Foundation Kafka Client

CVE-2025-27817

A possible arbitrary file read and SSRF vulnerability has been identified in Apache Kafka Client. Apache Kafka Clients accept configuration data for setting the SASL/OAUTHBEARER connection with the brokers, including "sasl.oauthbearer.toke…

EPSS: 0.608 (99.0th percentile) — read the EPSS interpretation.

Affected products

Apache Software Foundation Kafka Client — versions 3.1.0

Public proof-of-concept exploits

kk12-30/CVE-2025-27817
iSee857/CVE-2025-27817
Threekiii/Awesome-POC
anders-wartoft/LogGenerator
nomi-sec/PoC-in-GitHub
ARPSyndicate/cve-scores
plzheheplztrying/cve_
tanjiti/sec_
oriolrius/kafka-keycloak-oauth
J1ezds/Vulnerability-Wiki-page

References

kafka.apache.org/cve-list (vendor-advisory)

Frequently asked questions

What is CVE-2025-27817?: CVE-2025-27817 is a vulnerability in Apache Software Foundation Kafka Client. Published 2025-06-10.
Is CVE-2025-27817 known to be exploited?: 10 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.