CVEvulnerability
CVE-2026-74994
6.0 MEDIUM
Official page ↗
- Status
- Deferred
- Published
- 2026-09-01
- Last modified
- 2026-09-08
- Assigner
- 6b3ad84c-e1a6-4bf7-a703-f496b71e49db
- CVSS 4.0 (6b3ad84c-e1a6-4bf7-a703-f496b71e49db)
- 6.0 MEDIUM — CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Weaknesses
- CWE-1289, CWE-863
Description
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. Whether OTP before OTP 17.0, corresponding to inets before 5.10, is affected is unknown.
Related
References
- https://cna.erlef.org/cves/CVE-2026-74994.html cna.erlef.org
- https://github.com/erlang/otp/commit/6101cb74ff2870718c622ba7af0c100f7f2524e3 github.com
- https://github.com/erlang/otp/commit/6982e381137ede21a4e1faf5fa2dd82321691176 github.com
- https://github.com/erlang/otp/commit/c5ccec8ed25c70ec6557fd81277e4b2f52285c19 github.com
- https://github.com/erlang/otp/security/advisories/GHSA-c3cq-q8x6-547g github.com
- https://osv.dev/vulnerability/EEF-CVE-2026-74994 osv.dev