mediumCVSS 5.3Vulnerability
GHSA-86rf-68f4-2cph
### Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-2464-8j7c-4cjm. This link is maintained to preserve external references. ### Original 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.
Properties
- ghsa_id
- GHSA-86rf-68f4-2cph
- severity
- medium
- summary
- Duplicate Advisory: go-viper's mapstructure May Leak Sensitive Information in Logs When Processing Malformed Data
- cvss_score
- 5.3
- cve_id
- GHSA-86rf-68f4-2cph
- cvss_vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
- is_ghsa_only
- true
- ghsa_published
- 2026-01-26T21:30:36Z
- source_url
- https://github.com/advisories/GHSA-86rf-68f4-2cph
- ghsa_updated
- 2026-01-27T21:00:34Z
Related Entities (3)
HAS_WEAKNESS (1)
→[Weakness]Improper Output Neutralization for Logs
REPORTED_BY (1)
→[Source]GitHub Advisory Database
AFFECTS (1)
→[Software]go/github.com/go-viper/mapstructure/v2
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