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.
Metrics
Affected Vendors & Products
References
History
Fri, 03 Apr 2026 20:15:00 +0000
| Type | Values Removed | Values Added |
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| Metrics |
ssvc
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Fri, 03 Apr 2026 19:00:00 +0000
| Type | Values Removed | Values Added |
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| Description | No description is available for this CVE. | 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. |
| Title | util-linux: util-linux: Access control bypass due to improper hostname canonicalization | Util-linux: util-linux: access control bypass due to improper hostname canonicalization |
| First Time appeared |
Redhat
Redhat enterprise Linux Redhat hummingbird Redhat openshift |
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| CPEs | cpe:/a:redhat:hummingbird:1 cpe:/a:redhat:openshift:4 cpe:/o:redhat:enterprise_linux:10 cpe:/o:redhat:enterprise_linux:7 cpe:/o:redhat:enterprise_linux:8 cpe:/o:redhat:enterprise_linux:9 |
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| Vendors & Products |
Redhat
Redhat enterprise Linux Redhat hummingbird Redhat openshift |
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| References |
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Thu, 26 Feb 2026 13:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Linux
Linux util-linux |
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| Vendors & Products |
Linux
Linux util-linux |
Wed, 25 Feb 2026 12:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | No description is available for this CVE. | |
| Title | util-linux: util-linux: Access control bypass due to improper hostname canonicalization | |
| Weaknesses | CWE-289 | |
| References |
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| Metrics |
threat_severity
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cvssV3_1
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Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2026-04-08T13:34:50.167Z
Reserved: 2026-02-25T08:02:20.937Z
Link: CVE-2026-3184
Updated: 2026-04-03T20:06:18.328Z
Status : Awaiting Analysis
Published: 2026-04-03T19:17:23.377
Modified: 2026-04-07T13:20:55.200
Link: CVE-2026-3184
OpenCVE Enrichment
Updated: 2026-02-26T13:18:30Z