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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-5222 Detail

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

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

Nist CVSS score does not match with CNA score
CNA:  rust
CVSS-B 2.3 LOW
Vector:  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

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://blog.rust-lang.org/2026/05/25/cve-2026-5222/ rust Vendor Advisory 
https://github.com/rust-lang/cargo/pull/17031 rust Issue Tracking  Patch 
https://groups.google.com/g/rustlang-security-announcements/c/SfUxOiIdY5s rust Mailing List  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-647 Use of Non-Canonical URL Paths for Authorization Decisions rust  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

5 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-5222
NVD Published Date:
05/25/2026
NVD Last Modified:
07/23/2026
Source:
rust