ESB-2026.3160
PUBLISHED
CVSS 5.900000095367432 MEDIUM
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AUSCERT External Security Bulletin Redistribution
ESB-2026.3160
nginx:1.24 security update
1 April 2026
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AUSCERT Security Bulletin Summary
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Product: nginx:1.24
Publisher: Red Hat
Operating System: Red Hat
Resolution: Patch/Upgrade
CVE Names: CVE-2026-1642
Original Bulletin:
https://access.redhat.com/errata/RHSA-2026:6302
Comment: CVSS (Max): 5.9 CVE-2026-1642 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N)
CVSS Source: Red Hat
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS (Max): 0.0% (3rd) CVE-2026-1642 2026-03-31
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RHSA-2026:6302 - Security Advisory
Issued: 2026-03-31
Updated: 2026-03-31
Synopsis
Nginx:1.24 security update
Type/Severity
Security Advisory: Moderate
Topic
An update for the nginx:1.24 module is now available for Red Hat Enterprise
Linux 9.6 Extended Update Support.
Red Hat Product Security has rated this update as having a security impact of
Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives
a detailed severity rating, is available for each vulnerability from the CVE
link(s) in the References section.
Description
nginx is a web and proxy server supporting HTTP and other protocols, with a
focus on high concurrency, performance, and low memory usage.
Security Fix(es):
o nginx: NGINX: Data injection via man-in-the-middle attack on TLS proxied
connections (CVE-2026-1642)
For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE page(s)
listed in the References section.
Solution
For details on how to apply this update, which includes the changes described
in this advisory, refer to:
https://access.redhat.com/articles/11258
Affected Products
o Red Hat Enterprise Linux for x86_64 - Extended Update Support 9.6 x86_64
o Red Hat Enterprise Linux Server - AUS 9.6 x86_64
o Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 9.6
s390x
o Red Hat Enterprise Linux for Power, little endian - Extended Update Support
9.6 ppc64le
o Red Hat Enterprise Linux for ARM 64 - Extended Update Support 9.6 aarch64
o Red Hat Enterprise Linux Server for Power LE - Update Services for SAP
Solutions 9.6 ppc64le
o Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.6
x86_64
o Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.6 aarch64
o Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.6 s390x
o Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 9.6 x86_64
o Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 9.6 aarch64
o Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 9.6
ppc64le
o Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 9.6 s390x
Fixes
o BZ - 2436738 - CVE-2026-1642 nginx: NGINX: Data injection via
man-in-the-middle attack on TLS proxied connections
CVEs
o CVE-2026-1642
References
o https://access.redhat.com/security/updates/classification/#moderate
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