Lightbend Alpakka Kafka logs credentials on debug level

CVE-2023-29471 → View on GitHub ↗ View on CVE.org ↗ View on NVD ↗

Description

Lightbend Alpakka Kafka before 4.0.2 logs its configuration as debug information, and thus log files may contain credentials (if plain cleartext login is configured). This occurs in akka.kafka.internal.KafkaConsumerActor.

Basic information

Type
reviewed
Severity
medium
Advisory on GitHub
Open advisory ↗
Repository advisory
—
Source code
Browse source ↗
Published (advisory)
2023-04-27 21:30:26 UTC
Updated
2025-09-30 18:53:18 UTC
GitHub reviewed
2023-04-27 23:53:28 UTC
NVD published
2023-04-27

EPSS Score

Score Percentile
0.04% 11.34%

CVSS Scores

Base score Version Severity Vector
5.5 3.1 —
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.

Identifiers

Type Value
GHSA GHSA-55vq-xpjf-r2xc ↗
CVE CVE-2023-29471 ↗

CWEs

CWE id Name
CWE-312 Cleartext Storage of Sensitive Information
CWE-532 Insertion of Sensitive Information into Log File

Affected packages (4)

Vulnerable version ranges and first patched releases as published by GitHub.

Ecosystem Package Vulnerable range First patched Vulnerable functions
maven com.typesafe.akka:akka-stream-kafka_3 < 4.0.2 4.0.2 —
maven com.typesafe.akka:akka-stream-kafka_2.13 < 4.0.2 4.0.2 —
maven com.typesafe.akka:akka-stream-kafka_2.12 < 4.0.2 4.0.2 —
maven com.typesafe.akka:akka-stream-kafka_2.11 < 4.0.2 — —

References

cvelogic Threat Intelligence