Medium6.5Red Hat Linux

Medium [CVE-2026-74994] inets httpd mod_auth: Authentication Bypass via Directory Namespace Collapse

This medium-severity Red Hat Linux advisory covers CVE-2026-74994 affecting Cryostat 4, Red Hat Advanced Cluster Management for Kubernetes 2, Red Hat Hardened Images.

CVE-2026-74994 Published Sep 1, 2026Updated by vendor Sep 1, 2026

CVE-2026-74994

Affected products & platforms

Red Hat LinuxUnclassified

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Summary

The mod_auth module in OTP's inets httpd server, when configured with dets or mnesia authentication backends and multiple directory configuration blocks, collapses all directory blocks into a single shared user/group namespace. A user added to one protected directory is accepted as valid for all other protected directories on the same server instance.

This issue affects OTP from OTP 17.0 before OTP 27.3.4.17, from OTP 28.0 before OTP 28.5.0.6, and from OTP 29.0 before OTP 29.0.6, corresponding to inets from 5.10 before 9.3.2.7, from 9.4 before 9.6.2.3, and from 9.7 before 9.7.2. Red Hat severity: Moderate — CVSS 6.5 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N).

Weakness: CWE-1220. Affected Red Hat products: Cryostat 4; Red Hat Advanced Cluster Management for Kubernetes 2; Red Hat Hardened Images; Red Hat OpenShift Dev Spaces.

Red Hat does not currently list a fixing RHSA for this CVE.

Affected versions

< 17.0
< 27.3.4.17
< 28.0
< 28.5.0.6
< 29.0
< 29.0.6
< 5.10
< 9.3.2.7
< 9.4
< 9.6.2.3
< 9.7
< 9.7.2

Official advisory · high-confidence parse· fetched 2 hours ago·verify at source

Fixed versions

No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.

Official advisory · high-confidence parse· fetched 2 hours ago·verify at source

Mitigation

The source record does not include mitigation steps. That is not a statement that no fix exists — read the vendor advisory below for the authoritative guidance.

Official advisory · high-confidence parse· fetched 2 hours ago·verify at source

Discussion(0)

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