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High ELSA-2026-36639 1 CVE

Important: nginx:1.26 security, bug fix, and enhancement update (Oracle Linux 9)

Published Jul 9, 2026 · Updated Jul 9, 2026

Summary

[1.26.3-9.0.1.2]
- Require oracle-indexhtml

[2:1.26.3-12]
- Resolves: RHEL-191774 - nginx: 'HTTP/2 bomb' nginx fix breaks module ABI
causing crashes

[2:1.26.3-11]
- nginx:1.26/nginx: HTTP/2: Remote Denial of Service via compression bomb
and Slowloris-style attack

[2:1.26.3-10]
- nginx: code execution and denial of service (CVE-2026-9256)

[2:1.26.3-9]
- Resolves: RHEL-176218 - nginx:1.26/nginx: NGINX: Arbitrary Code Execution
Vulnerability (CVE-2026-42945)

[2:1.26.3-8]
- CVE-2026-32647 nginx:1.26/nginx: NGINX: Denial of Service or Code
Execution via specially crafted MP4 files

[2:1.26.3-7]
- CVE-2026-27651 nginx:1.26/nginx: NGINX: Denial of Service via undisclosed
requests when ngx_mail_auth_http_module is enabled

[2:1.26.3-6]
- CVE-2026-27784 nginx:1.26/nginx: NGINX: Denial of Service due to memory
corruption via crafted MP4 file

[2:1.26.3-5]
- CVE-2026-27654 nginx:1.26/nginx: NGINX: Denial of Service or file
modification via buffer overflow in ngx_http_dav_module

[2:1.26.3-4]
- CVE-2026-1642 nginx: NGINX: Data injection via man-in-the-middle attack
on TLS proxied connections

Fixed packages 10

ReleasePackageFixed in
Oracle Linux · 9 nginx 2:1.26.3-9.0.1.module+el9.8.0+90950+a1e882cd.2
Oracle Linux · 9 nginx-all-modules 2:1.26.3-9.0.1.module+el9.8.0+90950+a1e882cd.2
Oracle Linux · 9 nginx-core 2:1.26.3-9.0.1.module+el9.8.0+90950+a1e882cd.2
Oracle Linux · 9 nginx-filesystem 2:1.26.3-9.0.1.module+el9.8.0+90950+a1e882cd.2
Oracle Linux · 9 nginx-mod-devel 2:1.26.3-9.0.1.module+el9.8.0+90950+a1e882cd.2
Oracle Linux · 9 nginx-mod-http-image-filter 2:1.26.3-9.0.1.module+el9.8.0+90950+a1e882cd.2
Oracle Linux · 9 nginx-mod-http-perl 2:1.26.3-9.0.1.module+el9.8.0+90950+a1e882cd.2
Oracle Linux · 9 nginx-mod-http-xslt-filter 2:1.26.3-9.0.1.module+el9.8.0+90950+a1e882cd.2
Oracle Linux · 9 nginx-mod-mail 2:1.26.3-9.0.1.module+el9.8.0+90950+a1e882cd.2
Oracle Linux · 9 nginx-mod-stream 2:1.26.3-9.0.1.module+el9.8.0+90950+a1e882cd.2

Vulnerabilities 1