Spring Cloud Config Server Logged Sensitive Information

Description

When trace logging is enabled in Spring Cloud Config Server, sensitive information is placed in plain text in the logs.

  • Spring Cloud Config 3.0.x: affected from 3.0.0 through 3.0.7 (inclusive); no open-source upgrade available.
  • Spring Cloud Config 3.1.x: affected from 3.1.0 through 3.1.13 (inclusive); no open-source upgrade available.
  • Spring Cloud Config 4.1.x: affected from 4.1.0 through 4.1.9 (inclusive); no open-source upgrade available.
  • Spring Cloud Config 4.2.x: affected from 4.2.0 through 4.2.6 (inclusive); no open-source upgrade available.
  • Spring Cloud Config 4.3.x: affected from 4.3.0 through 4.3.2 (inclusive); upgrade to 4.3.3 or greater.
  • Spring Cloud Config 5.0.x: affected from 5.0.0 through 5.0.2 (inclusive); upgrade to 5.0.3 or greater.

Basic information

Type
reviewed
Severity
medium
Advisory on GitHub
Open advisory ↗
Repository advisory
Source code
Browse source ↗
Published (advisory)
2026-05-07 06:31:41 UTC
Updated
2026-06-18 22:58:07 UTC
GitHub reviewed
2026-05-11 16:19:34 UTC
NVD published
2026-05-07

EPSS Score

Score Percentile
0.17% 6.34%

CVSS Scores

Base score Version Severity Vector
4.4 3.1
CVSS:3.1/AV:L/AC:L/PR:H/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:H)
They need powerful rights—admin, root, or similar—before this pays off.
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

CWEs

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

Credits

  • scottfrederick (analyst)

Affected packages (6)

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

Ecosystem Package Vulnerable range First patched Vulnerable functions
maven org.springframework.cloud:spring-cloud-config-server >= 3.1.0, <= 3.1.13
maven org.springframework.cloud:spring-cloud-config-server >= 4.1.0, <= 4.1.9
maven org.springframework.cloud:spring-cloud-config-server >= 4.2.0, <= 4.2.6
maven org.springframework.cloud:spring-cloud-config-server >= 4.3.0, <= 4.3.2 4.3.3
maven org.springframework.cloud:spring-cloud-config-server >= 5.0.0, <= 5.0.2 5.0.3
maven org.springframework.cloud:spring-cloud-config-server >= 3.0.0, <= 3.0.7

References

cvelogic Threat Intelligence