RubyGems/rack CVE-2025-61771: high 7.5, EPSS 0.56%
Rack: Multipart parser buffers large non‑file fields entirely in memory, enabling DoS (memory exhaustion)
Action: Upgrade rack to 2.2.19 or later.
bundle update rackAffected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 2.2.19 | - |
| 3.1 | 3.1.17 | - |
| 3.2 | 3.2.2 | - |
Fixed versions
| 2.2.19 | 3.1.17 | 3.2.2 |
Sources
- osv: GHSA-w9pc-fmgc-vxvw
- https://github.com/rack/rack/security/advisories/GHSA-w9pc-fmgc-vxvw
- https://nvd.nist.gov/vuln/detail/CVE-2025-61771
- https://github.com/rack/rack/commit/589127f4ac8b5cf11cf88fb0cd116ffed4d2181e
- https://github.com/rack/rack/commit/d869fed663b113b95a74ad53e1b5cae6ab31f29e
- https://github.com/rack/rack/commit/e08f78c656c9394d6737c022bde087e0f33336fd
- https://github.com/rack/rack
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rack/CVE-2025-61771.yml
CVE-2025-61771 · published · modified · JSON