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.
Metrics
Affected Vendors & Products
References
History
Mon, 01 Jun 2026 18:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:2.3:a:rust-lang:cargo:*:*:*:*:*:rust:*:* | |
| Metrics |
cvssV3_1
|
Tue, 26 May 2026 15:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Mon, 25 May 2026 11:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Rust-lang
Rust-lang cargo |
|
| Vendors & Products |
Rust-lang
Rust-lang cargo |
Mon, 25 May 2026 09:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Cargo can be coerced to share credentials between registries | |
| Weaknesses | CWE-647 | |
| References |
| |
| Metrics |
cvssV4_0
|
Status: PUBLISHED
Assigner: rust
Published: 2026-05-25T08:54:56.348Z
Updated: 2026-05-26T14:43:10.019Z
Reserved: 2026-03-31T12:07:40.168Z
Link: CVE-2026-5222
Updated: 2026-05-26T14:43:04.959Z
Status : Analyzed
Published: 2026-05-25T10:16:15.273
Modified: 2026-06-01T17:56:41.383
Link: CVE-2026-5222
No data.