PT-2026-43024 · Rust · Cargo

Christos Papakonstantinou · Published 2026-05-25 · Updated 2026-06-02 · CVE-2026-5222

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions Cargo versions 1.68 through 1.95

Description Cargo incorrectly normalized URLs of third-party registries using the sparse index protocol. In scenarios where a hosting provider allows multiple registries to be hosted with arbitrary names within the same domain, an attacker capable of publishing crates in a registry could obtain the credentials of other users of that same registry.

Recommendations Update to version 1.96.

Fix

Weakness Enumeration

CWE-647

Related Identifiers

CVE-2026-5222

Affected Products

Cargo

References · 18

• https://github.com/rust-lang/cargo/pull/17031 · Patch
• https://groups.google.com/g/rustlang-security-announcements/c/SfUxOiIdY5s · Vendor Advisory
• https://osv.dev/vulnerability/ALPINE-CVE-2026-5222 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2026-5222 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-5222 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2026-5222 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-5222 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-5222 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-5222 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-5222 · Security Note
• https://blog.rust-lang.org/2026/05/25/cve-2026-5222 · Vendor Advisory
• https://twitter.com/rustaceans_rs/status/2058942647599858042 · Twitter Post
• https://t.me/CVEtracker/54844 · Telegram Post
• https://twitter.com/CVEnew/status/2058935272230817828 · Twitter Post
• https://twitter.com/oss_security/status/2060263005749657780 · Twitter Post