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8.1
Nginx Web Server Security Update for Linux
RHSA-2026:17794
Summary
A security update is available for the Nginx web server on Linux systems. This update fixes a potential security issue that could allow an attacker to execute malicious code. It's recommended to apply the update as soon as possible to ensure the security of your web server.
What to do
- Update redhat nginx to version 2:1.20.1-22.el9_6.6.
- Update redhat nginx-all-modules to version 2:1.20.1-22.el9_6.6.
- Update redhat nginx-core to version 2:1.20.1-22.el9_6.6.
- Update redhat nginx-filesystem to version 2:1.20.1-22.el9_6.6.
- Update redhat nginx-mod-devel to version 2:1.20.1-22.el9_6.6.
- Update redhat nginx-mod-http-image-filter to version 2:1.20.1-22.el9_6.6.
- Update redhat nginx-mod-http-perl to version 2:1.20.1-22.el9_6.6.
- Update redhat nginx-mod-http-xslt-filter to version 2:1.20.1-22.el9_6.6.
- Update redhat nginx-mod-mail to version 2:1.20.1-22.el9_6.6.
- Update redhat nginx-mod-stream to version 2:1.20.1-22.el9_6.6.
Affected software
| Ecosystem | Vendor | Product | Affected versions |
|---|---|---|---|
| Red Hat:rhel_eus:9.6::appstream | redhat | nginx |
< 2:1.20.1-22.el9_6.6 Fix: upgrade to 2:1.20.1-22.el9_6.6
|
| Red Hat:rhel_eus:9.6::appstream | redhat | nginx-all-modules |
< 2:1.20.1-22.el9_6.6 Fix: upgrade to 2:1.20.1-22.el9_6.6
|
| Red Hat:rhel_eus:9.6::appstream | redhat | nginx-core |
< 2:1.20.1-22.el9_6.6 Fix: upgrade to 2:1.20.1-22.el9_6.6
|
| Red Hat:rhel_eus:9.6::appstream | redhat | nginx-filesystem |
< 2:1.20.1-22.el9_6.6 Fix: upgrade to 2:1.20.1-22.el9_6.6
|
| Red Hat:rhel_eus:9.6::appstream | redhat | nginx-mod-devel |
< 2:1.20.1-22.el9_6.6 Fix: upgrade to 2:1.20.1-22.el9_6.6
|
| Red Hat:rhel_eus:9.6::appstream | redhat | nginx-mod-http-image-filter |
< 2:1.20.1-22.el9_6.6 Fix: upgrade to 2:1.20.1-22.el9_6.6
|
| Red Hat:rhel_eus:9.6::appstream | redhat | nginx-mod-http-perl |
< 2:1.20.1-22.el9_6.6 Fix: upgrade to 2:1.20.1-22.el9_6.6
|
| Red Hat:rhel_eus:9.6::appstream | redhat | nginx-mod-http-xslt-filter |
< 2:1.20.1-22.el9_6.6 Fix: upgrade to 2:1.20.1-22.el9_6.6
|
| Red Hat:rhel_eus:9.6::appstream | redhat | nginx-mod-mail |
< 2:1.20.1-22.el9_6.6 Fix: upgrade to 2:1.20.1-22.el9_6.6
|
| Red Hat:rhel_eus:9.6::appstream | redhat | nginx-mod-stream |
< 2:1.20.1-22.el9_6.6 Fix: upgrade to 2:1.20.1-22.el9_6.6
|
| Red Hat:rhel_eus:9.6::crb | redhat | nginx |
< 2:1.20.1-22.el9_6.6 Fix: upgrade to 2:1.20.1-22.el9_6.6
|
| Red Hat:rhel_eus:9.6::crb | redhat | nginx-all-modules |
< 2:1.20.1-22.el9_6.6 Fix: upgrade to 2:1.20.1-22.el9_6.6
|
| Red Hat:rhel_eus:9.6::crb | redhat | nginx-core |
< 2:1.20.1-22.el9_6.6 Fix: upgrade to 2:1.20.1-22.el9_6.6
|
| Red Hat:rhel_eus:9.6::crb | redhat | nginx-filesystem |
< 2:1.20.1-22.el9_6.6 Fix: upgrade to 2:1.20.1-22.el9_6.6
|
| Red Hat:rhel_eus:9.6::crb | redhat | nginx-mod-devel |
< 2:1.20.1-22.el9_6.6 Fix: upgrade to 2:1.20.1-22.el9_6.6
|
| Red Hat:rhel_eus:9.6::crb | redhat | nginx-mod-http-image-filter |
< 2:1.20.1-22.el9_6.6 Fix: upgrade to 2:1.20.1-22.el9_6.6
|
| Red Hat:rhel_eus:9.6::crb | redhat | nginx-mod-http-perl |
< 2:1.20.1-22.el9_6.6 Fix: upgrade to 2:1.20.1-22.el9_6.6
|
| Red Hat:rhel_eus:9.6::crb | redhat | nginx-mod-http-xslt-filter |
< 2:1.20.1-22.el9_6.6 Fix: upgrade to 2:1.20.1-22.el9_6.6
|
| Red Hat:rhel_eus:9.6::crb | redhat | nginx-mod-mail |
< 2:1.20.1-22.el9_6.6 Fix: upgrade to 2:1.20.1-22.el9_6.6
|
| Red Hat:rhel_eus:9.6::crb | redhat | nginx-mod-stream |
< 2:1.20.1-22.el9_6.6 Fix: upgrade to 2:1.20.1-22.el9_6.6
|
Original title
Red Hat Security Advisory: nginx security update
osv CVSS3.1
8.1
- https://access.redhat.com/errata/RHSA-2026:17794 Vendor Advisory
- https://access.redhat.com/security/updates/classification/#critical Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2477116 Third Party Advisory
- https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_17794.... Vendor Advisory
- https://access.redhat.com/security/cve/CVE-2026-42945 Third Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2026-42945 Vendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-42945 Vendor Advisory
- https://depthfirst.com/nginx-rift Third Party Advisory
- https://my.f5.com/manage/s/article/K000161019 Third Party Advisory
Published: 16 May 2026 · Updated: 21 May 2026 · First seen: 21 May 2026