CVE-2025-11065

Aliases:GHSA-2464-8j7c-4cjmGO-2025-3900
Advisory lineage Upstream: 0 Downstream: 19
Deferred
Published: 26 Jan 2026, 19:36
Last modified:03 Feb 2026, 19:21

Vulnerability Summary

Overall Risk (default)
low
21/100
CVSS Score
5.3 MEDIUM
v3.1 (cve.org)
EPSS Score
<0.01% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

26 Jan 2026, 19:36
Published
Vulnerability first disclosed
03 Feb 2026, 19:21
Last Modified
Vulnerability information updated

Description

A flaw was found in github.com/go-viper/mapstructure/v2, in the field processing component using mapstructure.WeakDecode. This vulnerability allows information disclosure through detailed error messages that may leak sensitive input values via malformed user-supplied data processed in security-critical contexts.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.3CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N

EPSS Trends

Current EPSS score: 0.01%• Percentile: 1%

Techniques & Countermeasures

  • CWE-209•Generation of Error Message Containing Sensitive Information

    The product generates an error message that includes sensitive information about its environment, users, or associated data.

Affected Systems

  • github.com/go-viper•mapstructure

    all

  • github.com/go-viper/mapstructure•v2

    < 2.4.0

References (7)