Detections
Analytics

Echo: org.apache.kafka:kafka-clients: security update to 3.9.1

high Tenable Cloud Security Plugin ID 464144

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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.token.endpoint.url" and "sasl.oauthbearer.jwks.endpoint.url". Apache Kafka
 allows clients to read an arbitrary file and return the content in the error log, or sending requests to
 an unintended location. In applications where Apache Kafka Clients configurations can be specified by an
 untrusted party, attackers may use the "sasl.oauthbearer.token.endpoint.url" and
 "sasl.oauthbearer.jwks.endpoint.url" configuratin to read arbitrary contents of the disk and environment
 variables or make requests to an unintended location. In particular, this flaw may be used in Apache Kafka
 Connect to escalate from REST API access to filesystem/environment/URL access, which may be undesirable in
 certain environments, including SaaS products. Since Apache Kafka 3.9.1/4.0.0, we have added a system
 property ("-Dorg.apache.kafka.sasl.oauthbearer.allowed.urls") to set the allowed urls in SASL JAAS
 configuration. In 3.9.1, it accepts all urls by default for backward compatibility. However in 4.0.0 and
 newer, the default value is empty list and users have to set the allowed urls explicitly. (CVE-2025-27817)

Solution

Update the org.apache.kafka:kafka-clients library and its related packages to version 3.9.1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2025-27817

Plugin Details

Severity: High

ID: 464144

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/3/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 94.32

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:N

CVSS Score Source: CVE-2025-27817

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 8.6

Threat Score: 7.3

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/28/2026

Vulnerability Publication Date: 6/10/2025

Reference Information

CVE: CVE-2025-27817