CVE-2025-4658 Details
Description
Versions of OpenPubkey library prior to 0.10.0 contained a vulnerability that would allow a specially crafted JWS to bypass signature verification. As OPKSSH depends on the OpenPubkey library for authentication, this vulnerability in OpenPubkey also applies to OPKSSH versions prior to 0.5.0 and would allow an attacker to bypass OPKSSH authentication.
A vulnerability exists in the OpenPubkey library in versions prior to 0.10.0, allowing a specially crafted JSON Web Signature (JWS) to bypass signature verification. This issue also affects OPKSSH versions prior to 0.5.0, as OPKSSH relies on the OpenPubkey library for authentication. Exploiting this vulnerability could enable an attacker to bypass authentication in OPKSSH.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed May 13, 2025References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/openpubkey/opkssh | [email protected] | Product |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-347 | Improper Verification of Cryptographic Signature | [email protected] |
| CWE-305 | Authentication Bypass by Primary Weakness | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| openpubkey openpubkey | < 0.10.0 |
CPE
Remediation
| |
| openpubkey opkssh | < 0.5.0 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 22, 2025 | Initial Analysis | [email protected] |
| May 13, 2025 | New CVE Received | [email protected] |