CVE-2026-5222
Cargo can be coerced to share credentials between registries
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
12th
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.
| CWE | CWE-647 |
| Vendor | rust |
| Product | cargo |
| Ecosystems | |
| Industries | Technology |
| Published | May 25, 2026 |
| Last Updated | May 26, 2026 |
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Affected Versions
Rust / Cargo
1.68.0 < 1.96.0