Medium 5.3Published Jan 26, 2026

CVE-2025-11065A flaw was found in github.com/go-viper/mapstructure/v2, in the field processing component using mapstructure.WeakDecode.

Updated under an hour ago (2026-10-19 11:10 UTC)

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Exploited in the last 30 days

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: 5.3 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
Weakness (CWE): CWE-209
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Deferred
Record last updated: Jun 30, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

No affected products are listed yet.

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

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.