Insufficient Verification of Data Authenticity Affecting nginx-mod-http-perl package, versions <2:1.20.1-24.el9_7.1.alma.1


Severity

Recommended
0.0
medium
0
10

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.34% (26th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-ALMALINUX9-NGINXMODHTTPPERL-15851027
  • published31 Mar 2026
  • disclosed3 Mar 2026

Introduced: 3 Mar 2026

CVE-2026-1642  (opens in a new tab)
CWE-345  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:9 nginx-mod-http-perl to version 2:1.20.1-24.el9_7.1.alma.1 or higher.
This issue was patched in ALSA-2026:5599.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nginx-mod-http-perl package and not the nginx-mod-http-perl package as distributed by AlmaLinux. See How to fix? for AlmaLinux:9 relevant fixed versions and status.

A vulnerability exists in NGINX OSS and NGINX Plus when configured to proxy to upstream Transport Layer Security (TLS) servers. An attacker with a man-in-the-middle (MITM) position on the upstream server side—along with conditions beyond the attacker's control—may be able to inject plain text data into the response from an upstream proxied server.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CVSS Base Scores

version 3.1