CVE-2026-3184
MEDIUM
MEDIUM
Priority: 0.02
BB Relevance:
71/100
Published: 2026-04-03
Modified: 2026-11-06
First seen: 2026-11-06
Status: active
Attack Surface
Network
Low Complexity
No Auth
No Interaction
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
None
UI:
None
S:
Unchanged
C:
None
I:
Low
A:
None
Description
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.
Weakness Classification (1)
Affected Software (2)
| Vendor | Product | Version |
|---|---|---|
| kernel | util-linux | - |
| redhat | hardened_images | - |
References & Advisories (3)
vendor-advisory
x_refsource_REDHAT
vdb-entry
x_refsource_REDHAT
issue-tracking
x_refsource_REDHAT