CVE-2021-29485 is a Remote Code Execution (RCE) vulnerability affecting Ratpack web application toolkit versions prior to 1.9.0, specifically when its session mechanism is in use. This high-severity vulnerability (CVSS 8.8) allows an authenticated attacker to execute arbitrary code via a crafted Java deserialization gadget chain, leading to high impact on confidentiality, integrity, and availability. While no active exploitation or public exploit code is known, and community discussion is minimal, the vulnerability is mitigated in Ratpack 1.9.0 through a strict allow-list, and workarounds exist for earlier versions.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 1.9.0CPE matchmatch criteria | cpe:2.3:a:ratpack_project:ratpack:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
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The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.