CVE detail
CVE-2026-3184
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.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 16.1 · diversity 15.0 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 0
- within the 30d window
- Peak daily
- 0
- highest bucket
Evidence
Source links by recency
4 source links · newest first
- CVE-2026-3184 Util-linux: util-linux: access control bypass due to improper hostname canonicalizationMicrosoft MSRC
Information published.
vendormsrc.microsoft.comMay 1, 2026, 8:39 AM - https://bugzilla.redhat.com/show_bug.cgi?id=2442570bugzilla.redhat.com
No excerpt available.
Exploitbugzilla.redhat.comApr 3, 2026, 7:17 PM - https://access.redhat.com/security/cve/CVE-2026-3184access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comApr 3, 2026, 7:17 PM - https://access.redhat.com/errata/RHSA-2026:7180access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comApr 3, 2026, 7:17 PM
Exploit code
Public exploit repository references
Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.
0 repository references · best confidence N/A · max 0 stars
Related records
Similar CVEs
6 related CVEs with shared weakness or product evidence
- CVE-2026-13595CVSS 6.8 · Medium
A flaw was found in the libblkid library of util-linux. During nested partition probing, the BSD, Minix, Solaris x86, and UnixWare partition probers cache a raw pointer to a paren…
- CVE-2026-9701CVSS 9.8 · Critical
The Eventer plugin for WordPress is vulnerable to an insecure password reset mechanism in all versions up to, and including, 4.4.2. The plugin stores a plaintext copy of the passw…
- CVE-2026-55075CVSS 7.4 · High
Coder allows organizations to provision remote development environments via Terraform. Prior to versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2, two flaws in Coder's OIDC login chaine…
- CVE-2026-48618CVSS 6.5 · Medium
A flaw in Node.js TLS hostname handling can cause Node.js unicode dot separator handling can lead to tls wildcard-depth authentication bypass due to resolver and verifier hostname…
- CVE-2026-56091CVSS 8.2 · High
When using Apache Shiro with the shiro-guice module in a web servlet context, a specially crafted HTTP request may cause an authentication bypass. This vulnerability is similar to…
- CVE-2026-53622CVSS 7.8 · High
Traefik is an HTTP reverse proxy and load balancer. Prior to 3.7.3, there is a critical vulnerability in Traefik's HTTP/3 (QUIC) TLS configuration selection that allows unauthenti…