CVE-2026-5222

MediumCVSS 6.5/10Last modified Jul 23, 2026

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.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-647

Affected software

No affected versions have been published.

Timeline

Published: May 25, 2026
Last modified: Jul 23, 2026
NVD status: Analyzed

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