GHSA-qp7r-5rpf-pwxg

GHSA-qp7r-5rpf-pwxg PUBLISHED CVSS 3.700000047683716 LOW

A flaw was found in util-linux. Improper hostname canonicalization in the `login(1)` utility, when invoked with the `-h` option, can modify the supplied remote hostname before setting `PAM_RHOST`. A remote attacker could exploit this by providing a specially crafted hostname, potentially bypassing host-based Pluggable Authentication Modules (PAM) access control rules that rely on fully qualified domain names. This could lead to unauthorized access.

Risk Scores

CVSS 3.1

3.700000047683716

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

Timeline

Apr 3, 2026 CVE Published
Apr 10, 2026 Security Advisory
Apr 23, 2026 CVE Updated
Apr 24, 2026 Distribution Patch

References

https://nvd.nist.gov/vuln/detail/CVE-2026-3184 advisory
https://access.redhat.com/errata/RHSA-2026:7180 url
https://access.redhat.com/security/cve/CVE-2026-3184 url
https://bugzilla.redhat.com/show_bug.cgi?id=2442570 url

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