CVEvulnerability
CVE-2026-5222
2.3 LOW
Official page ↗
- Status
- Analyzed
- Published
- 2026-05-25
- Last modified
- 2026-07-23
- Assigner
- 986d4109-89ea-491f-99fd-a8e4803919bd
- CVSS 4.0 (986d4109-89ea-491f-99fd-a8e4803919bd)
- 2.3 LOW — CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- Weaknesses
- CWE-647
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.
Affected configurations
• rust-lang cargo (>= 1.68.0 < 1.96.0)
Related
Weakness · CWE (1)
- CWE-647 Use of Non-Canonical URL Paths for Authorization Decisions weakness
References
- https://blog.rust-lang.org/2026/05/25/cve-2026-5222/ Vendor Advisory
- https://github.com/rust-lang/cargo/pull/17031 Issue Tracking, Patch
- https://groups.google.com/g/rustlang-security-announcements/c/SfUxOiIdY5s Mailing List, Third Party Advisory