GHSA-gwm6-q8ch-hcfr

Source

https://github.com/advisories/GHSA-gwm6-q8ch-hcfr

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/07/GHSA-gwm6-q8ch-hcfr/GHSA-gwm6-q8ch-hcfr.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-gwm6-q8ch-hcfr

Aliases

CVE-2026-35356

Published

2026-07-06T19:54:56Z

Modified

2026-07-06T20:11:16Z

Severity

6.3 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H CVSS Calculator

Summary

install -D: symlink race in directory creation allows arbitrary file overwrite

Details

The -D path runs fs::create_dir_all on a pathname then later opens the destination via path-based File::create/fs::copy, neither anchored to a directory fd. Between the two, an attacker can replace a path component with a symlink, redirecting the write.

Impact: an attacker with concurrent write access to the destination tree can redirect a privileged install -D to an arbitrary location, enabling arbitrary file overwrite with attacker-controlled content. Recommendation: use dirfd-based traversal (openat/mkdirat + O_NOFOLLOW) per component and create the destination via openat on the same dirfd.

Remediation: Acknowledged by Canonical; fixed in commit 0c412999.

Reported by Zellic in the uutils coreutils Program Security Assessment (prepared for Canonical, Jan 20 2026), audited commit 3a07ffc5a9bd4c283e75afa548ba1f1957bad242. Finding 3.51. Credit: Zellic.

Database specific

{
    "cwe_ids":  [
        "CWE-367",
        "CWE-59"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-07-06T19:54:56Z",
    "nvd_published_at":  null,
    "severity":  "MODERATE"
}

References

Affected packages

crates.io / uu_install

Package

Name: uu_install; View open source insights on deps.dev
Purl: pkg:cargo/uu_install

Affected ranges

Type: SEMVER
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

0.7.0

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/07/GHSA-gwm6-q8ch-hcfr/GHSA-gwm6-q8ch-hcfr.json"