CVE-2026-5222

Name
CVE-2026-5222
Description
Cargo between 1.68 and 1.96 incorrectly normalized the URLs of third-party registries using the sparse index protocol. If a hosting provider allowed multiple registries to be hosted with arbitrary names within the same domain, an attacker able to publish crates in a registry could obtain the credentials of others users of the same registry. The severity of the vulnerability is **low**, due to the extremely niche requirements needed to achieve the attack.
NVD Severity
unknown
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
986d4109-89ea-491f-99fd-a8e4803919bd https://blog.rust-lang.org/2026/05/25/cve-2026-5222/
986d4109-89ea-491f-99fd-a8e4803919bd https://github.com/rust-lang/cargo/pull/17031
986d4109-89ea-491f-99fd-a8e4803919bd https://groups.google.com/g/rustlang-security-announcements/c/SfUxOiIdY5s

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:rust-lang:cargo:*:*:*:*:*:rust:*:* cargo >= 1.68.0 < 1.96.0

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
rust edge-main 1.96.0-r0 team/rust <alpine@ptrcnull.me> fixed
rust 3.24-main 1.96.0-r0 team/rust <alpine@ptrcnull.me> fixed
rust 3.23-main 1.91.1-r2 team/rust <alpine@ptrcnull.me> fixed