CVE-2013-10031: Plack Plack-Middleware-Session

High severity, CVSS 7.5. EPSS: 0.3% chance of exploitation in the next 30 days.

Plack-Middleware-Session versions before 0.17 may be vulnerable to HMAC comparison timing attacks

Affected products

• Plack Plack-Middleware-Session: before 0.17 (fixed in 0.17)

Published 2025-12-09. Last modified 2026-06-16.