Oracle alert ELSA-2026-36331 (nginx)

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[El-errata] ELSA-2026-36331 Important: Oracle Linux 9 nginx security, bug fix, and enhancement update
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Tue, 14 Jul 2026 09:05:25 -0700
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<mailman.232.1784045137.18.el-errata@oss.oracle.com>
Oracle Linux Security Advisory ELSA-2026-36331

http://linux.oracle.com/errata/ELSA-2026-36331.html

The following updated rpms for Oracle Linux 9 have been uploaded to the Unbreakable Linux Network:

x86_64:
nginx-1.20.1-28.0.1.el9_8.4.x86_64.rpm
nginx-all-modules-1.20.1-28.0.1.el9_8.4.noarch.rpm
nginx-core-1.20.1-28.0.1.el9_8.4.x86_64.rpm
nginx-filesystem-1.20.1-28.0.1.el9_8.4.noarch.rpm
nginx-mod-devel-1.20.1-28.0.1.el9_8.4.x86_64.rpm
nginx-mod-http-image-filter-1.20.1-28.0.1.el9_8.4.x86_64.rpm
nginx-mod-http-perl-1.20.1-28.0.1.el9_8.4.x86_64.rpm
nginx-mod-http-xslt-filter-1.20.1-28.0.1.el9_8.4.x86_64.rpm
nginx-mod-mail-1.20.1-28.0.1.el9_8.4.x86_64.rpm
nginx-mod-stream-1.20.1-28.0.1.el9_8.4.x86_64.rpm

aarch64:
nginx-1.20.1-28.0.1.el9_8.4.aarch64.rpm
nginx-all-modules-1.20.1-28.0.1.el9_8.4.noarch.rpm
nginx-core-1.20.1-28.0.1.el9_8.4.aarch64.rpm
nginx-filesystem-1.20.1-28.0.1.el9_8.4.noarch.rpm
nginx-mod-devel-1.20.1-28.0.1.el9_8.4.aarch64.rpm
nginx-mod-http-image-filter-1.20.1-28.0.1.el9_8.4.aarch64.rpm
nginx-mod-http-perl-1.20.1-28.0.1.el9_8.4.aarch64.rpm
nginx-mod-http-xslt-filter-1.20.1-28.0.1.el9_8.4.aarch64.rpm
nginx-mod-mail-1.20.1-28.0.1.el9_8.4.aarch64.rpm
nginx-mod-stream-1.20.1-28.0.1.el9_8.4.aarch64.rpm


SRPMS:
http://oss.oracle.com/ol9/SRPMS-updates/nginx-1.20.1-28.0...

Related CVEs:

CVE-2026-42055




Description of changes:

[1.20.1-28.0.1.el9_8.4]
- Reference oracle-indexhtml within Requires [Orabug: 33802044]
- Remove Red Hat references [Orabug: 29498217]
- Update upstream references [Orabug: 36579090]

[2:1.20.1-28.4]
- Resolves: RHEL-190800 - nginx: "HTTP/2 bomb" nginx fix breaks module ABI
  causing crashes
- Resolves: RHEL-188418 - nginx: NGINX: Arbitrary code execution or
  Denial of Service via heap-based buffer overflow with crafted HTTP/2
  headers (CVE-2026-42055)

[2:1.20.1-28.3]
- Resolves: RHEL-178684 - nginx: code execution and denial of
  service (CVE-2026-9256)
- Resolves: RHEL-182553 - nginx: HTTP/2: Remote Denial of Service via
  compression bomb and Slowloris-style attack

[2:1.20.1-28.2]
- Resolves: RHEL-176232 - nginx: NGINX: Arbitrary Code Execution
  Vulnerability (CVE-2026-42945)

[2:1.20.1-28.1]
- RHEL-159560 CVE-2026-27654 nginx: NGINX: Denial of Service or file modification via buffer
overflow in ngx_http_dav_module
- RHEL-159539 CVE-2026-27784 nginx: NGINX: Denial of Service due to memory corruption via crafted
MP4 file
- RHEL-159447 CVE-2026-27651 nginx: NGINX: Denial of Service via undisclosed requests when
ngx_mail_auth_http_module is enabled
- RHEL-157888 CVE-2026-32647 nginx: NGINX: Denial of Service or Code Execution via specially
crafted MP4 files


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