Description
Plack::Middleware::Session::Cookie versions through 0.21 for Perl allows remote code execution.
Plack::Middleware::Session::Cookie versions through 0.21 has a security vulnerability where it allows an attacker to execute arbitrary code on the server during deserialization of the cookie data, when there is no secret used to sign the cookie.
Metrics
CVSS 3.1 9.8/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| MIYAGAWA | Plack::Middleware::Session::Cookie | <= 0.21 |
References
- https://gist.github.com/miyagawa/2b8764af908a0dacd43dThird Party Advisory
- https://metacpan.org/release/MIYAGAWA/Plack-Middleware-Session-0.23-TRIAL/changesRelease Notes
- http://www.openwall.com/lists/oss-security/2026/03/26/2Mailing List, Third Party Advisory
Timeline
- Published
- Mar 26, 2026
- Last modified
- Jun 17, 2026
- NVD status
- Analyzed