Sensitive-input disclosure via verbose WeakDecode errors
Published Jan 26, 2026 · Updated Jun 29, 2026
Information disclosure in go-viper mapstructure before 2.4.0 allows attackers to expose sensitive input through malformed values. WeakDecode conversion helpers return parser and type errors that reproduce the original untrusted value, which consuming applications can write to logs. Exposure requires security-sensitive data to reach a malformed conversion and an application to retain or reveal the resulting detailed error.
Summary
What happened
Information disclosure in go-viper mapstructure before 2.4.0 allows attackers to expose sensitive input through malformed values. WeakDecode conversion helpers return parser and type errors that reproduce the original untrusted value, which consuming applications can write to logs. Exposure requires security-sensitive data to reach a malformed conversion and an application to retain or reveal the resulting detailed error.
The record
- CVE
- CVE-2025-11065
- Published
- Jan 26, 2026
- Updated
- Jun 29, 2026
- Vendor
- 389 Directory Server
- Product
- Red Hat OpenShift Distributed Tracing
- Classifications
- CWE-209, CWE-117
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jan 26, 2026CVE publishedPublication date reported by the CVE source.
- Jun 29, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- OpenBao malformed-field reproductionproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo