CVSS 3.1
5.3 mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:NCVE-2025-11065
Medium (5.3). EPSS 0.4% chance of exploitation in the next 30 days. Fixed in github.com/go-viper/mapstructure/v2 2.4.0.
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.
Severity
- EPSS
- 0.4% chance of exploitation in the next 30 days; higher than 37% of CVEs (scores of 2026-11-01)
- CWE
- CWE-209
- Published
- Modified
- Record from
- the NVD, synced
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-2464-8j7c-4cjm | Go | github.com/go-viper/mapstructure/v2 | <2.4.0 | 2.4.0 |
| GO-2025-3900 | Go | github.com/go-viper/mapstructure | all versions | no fix published |
| GO-2025-3900 | Go | github.com/go-viper/mapstructure/v2 | <2.4.0 | 2.4.0 |
References
- https://access.redhat.com/security/cve/CVE-2025-11065
- https://bugzilla.redhat.com/show_bug.cgi?id=2391829
- https://github.com/go-viper/mapstructure/commit/742921c9ba2854d27baa64272487fc5075d2c39c
- https://github.com/go-viper/mapstructure/security/advisories/GHSA-2464-8j7c-4cjm
- https://github.com/go-viper/mapstructure/security/advisories/GHSA-2464-8j7c-4cjm