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CVE-2026-75589 Net::OAuth versions before 0.33 for Perl check HMAC-SHA1, HMAC-SHA256 and PLAINTEXT signatures with a non-constant-time comparison in verify

🗓️ 19 Aug 2026 07:20:44Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 8 Views

Net::OAuth before 0.33 uses non-constant-time comparison in verify, enabling timing attacks to recover HMAC-SHA1, HMAC-SHA256 and PLAINTEXT signatures.

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21 Aug 2026 09:27Current
5.5Medium risk
Vulners AI Score5.5
8