CVE-2025-4658
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.
Scoring
- Severity
- CRITICAL
- CVSS base score
- 9.3
- CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L
- EPSS probability
- 0.34%
- CWE
- CWE-305
- Published
- 2025-05-13
- Last modified
- 2026-03-13
Affected products
- OPKSSH OPKSSH
Weakness type
Related vulnerabilities
- CVE-2026-86207 — Authentication bypass leads to unauthorised access to N-central
- CVE-2026-81578 — PaperCut MF/NG: Authentication Bypass
- CVE-2026-16895 — Authentication Bypass in Metasploit JSON-RPC Service When DB Health Check Fails
- CVE-2026-78619 — Punk::Plugin::TOTP versions before 0.05 for Perl accept another account's recovery code at the two-factor challenge because totp_use_recovery compares user identifiers numerically
- CVE-2026-53561 — Apache Hive: Unauthenticated authentication bypass in HiveServer2 HTTP SAML bearer-token validation allows impersonation of any Hive user
- CVE-2025-14600 — Admin Account Takeover via Path Traversal in vsDesk
- CVE-2026-19349 — Lemonldap::NG::Portal versions from 2.0.0 before 2.16.9, from 2.17.0 before 2.21.5, from 2.22.0 before 2.23.3 for Perl allow authentication bypass via an OAuth2 state parameter stored as an SSO session in the GitHub and LinkedIn backends
- CVE-2026-1621 — Register Bypass in Universal Sotware's E-Municipality