CVEvulnerability

CVE-2026-42946

8.3 HIGH Published 2026-05-13 Modified 2026-10-26 Official page ↗
Status
Analyzed
Published
2026-05-13
Last modified
2026-10-26
Assigner
[email protected]
CVSS 4.0 ([email protected])
8.3 HIGH — CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:L/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
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:L
CVSS 3.1 ([email protected])
7.4 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H
Weaknesses
CWE-789, CWE-823

Description

A vulnerability exists in the ngx_http_scgi_module and ngx_http_uwsgi_module modules that may result in excessive memory allocation or an over-read of data. When scgi_pass or uwsgi_pass is configured, an unauthenticated attacker with man-in-the-middle (MITM) ability to control responses from an upstream server may be able to read the memory of the NGINX worker process or restart it.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Affected configurations

• f5 dos (>= 4.3.0 <= 4.7.0) • f5 dos 4.8.0 • f5 nginx gateway fabric (>= 1.3.0 <= 1.6.2) • f5 nginx gateway fabric (>= 2.0.0 <= 2.6.0) • f5 nginx ingress controller (>= 3.5.0 <= 3.7.2) • f5 nginx ingress controller (>= 4.0.0 <= 4.0.1) • f5 nginx ingress controller (>= 5.0.0 <= 5.4.2) • f5 nginx instance manager (>= 2.16.0 <= 2.22.0) • f5 nginx open source (>= 0.8.42 <= 0.9.7) • f5 nginx open source (>= 1.0.0 <= 1.30.0) • f5 nginx plus (>= r32 <= r36) • f5 waf (>= 4.9.0 <= 4.16.0) • f5 waf (>= 5.1.0 <= 5.8.0) • f5 waf (>= 5.9.0 <= 5.12.1)

Related

Weakness · CWE (2)

  • CWE-789 Memory Allocation with Excessive Size Value weakness
  • CWE-823 Use of Out-of-range Pointer Offset weakness

References