CVE•Published 2026-05-25•Modified 2026-07-23•0 articles on news•4 live references•NVD data

CVE-2026-5222Rust-lang · Cargo

Vulnerability data via NVD (ingested)

CVSS v3.1

6.5

MEDIUM

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

EPSS percentile

Exploit Prediction Scoring System · top 75% of all CVEs

Weaknesses (CWE)

CWE-647Use of Non-Canonical URL Paths for Authorization Decisions

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.

Timeline

Published 2026-05-25

Modified 2026-07-23

External references

NVD MITRE Exploit-DB VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2026-5222

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Rust-lang Cargo"

All exposed Rust-lang Cargo instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Cargo"

HTTP body or banner mentions "Cargo" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-5222