From 19e32df27e6c9e0c9c252e32b2aeb91a82fdf873 Mon Sep 17 00:00:00 2001
From: Andrew Lukoshko <andrew.lukoshko@gmail.com>
Date: Tue, 19 May 2026 19:34:19 +0000
Subject: [PATCH] import UBI nginx-1.26.3-2.el10_1.2

---
 ...escaping-and-possible-buffer-overrun.patch | 42 +++++++++++++++++++
 nginx.spec                                    | 13 +++++-
 2 files changed, 53 insertions(+), 2 deletions(-)
 create mode 100644 0011-Rewrite-fixed-escaping-and-possible-buffer-overrun.patch

diff --git a/0011-Rewrite-fixed-escaping-and-possible-buffer-overrun.patch b/0011-Rewrite-fixed-escaping-and-possible-buffer-overrun.patch
new file mode 100644
index 0000000..1ef2921
--- /dev/null
+++ b/0011-Rewrite-fixed-escaping-and-possible-buffer-overrun.patch
@@ -0,0 +1,42 @@
+From 4a644be298b126c7fc13b720cefb88d75a4e6aa4 Mon Sep 17 00:00:00 2001
+From: Roman Arutyunyan <arut@nginx.com>
+Date: Wed, 22 Apr 2026 09:39:31 +0400
+Subject: [PATCH] Rewrite: fixed escaping and possible buffer overrun
+
+The following code resulted in incorrect escaping of $1 and possible
+segfault:
+
+    location / {
+        rewrite ^(.*) /new?c=1;
+        set $myvar $1;
+        return 200 $myvar;
+    }
+
+If there were arguments in a rewrite's replacement string, the is_args flag
+was set and incorrectly never cleared.  This resulted in escaping applied
+to any captures evaluated afterwards in set or if.  Additionally buffer was
+allocated by ngx_http_script_complex_value_code() without escaping expected,
+thus this also resulted in buffer overrun and possible segfault.
+
+A similar issue was fixed in 74d939974d43.
+
+Reported by Leo Lin.
+---
+ src/http/ngx_http_script.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/src/http/ngx_http_script.c b/src/http/ngx_http_script.c
+index a2b9f1b..2ea6113 100644
+--- a/src/http/ngx_http_script.c
++++ b/src/http/ngx_http_script.c
+@@ -1202,6 +1202,7 @@ ngx_http_script_regex_end_code(ngx_http_script_engine_t *e)
+ 
+     r = e->request;
+ 
++    e->is_args = 0;
+     e->quote = 0;
+ 
+     ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
+-- 
+2.44.0
+
diff --git a/nginx.spec b/nginx.spec
index b36b608..269a048 100644
--- a/nginx.spec
+++ b/nginx.spec
@@ -1,5 +1,5 @@
 ## START: Set by rpmautospec
-## (rpmautospec version 0.8.3)
+## (rpmautospec version 0.6.5)
 ## RPMAUTOSPEC: autochangelog
 ## END: Set by rpmautospec
 
@@ -67,7 +67,7 @@
 Name:              nginx
 Epoch:             2
 Version:           1.26.3
-Release:           2%{?dist}.1
+Release:           2%{?dist}.2
 
 Summary:           A high performance web server and reverse proxy server
 License:           BSD-2-Clause
@@ -135,6 +135,9 @@ Patch8:            0009-Mail-fixed-clearing-s-passwd-in-auth-http-requests.patch
 # upstream patch - https://github.com/nginx/nginx/commit/7725c372c2f
 Patch9:            0010-Mp4-avoid-zero-size-buffers-in-output.patch
 
+# https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2026-42945
+# upstream patch - https://github.com/nginx/nginx/commit/524977e7
+Patch10:           0011-Rewrite-fixed-escaping-and-possible-buffer-overrun.patch
 
 BuildRequires:     make
 BuildRequires:     gcc
@@ -657,6 +660,12 @@ fi
 
 %changelog
 ## START: Generated by rpmautospec
+* Thu May 14 2026 Luboš Uhliarik <luhliari@redhat.com> - 2:1.26.3-8
+- Fix release number
+
+* Thu May 14 2026 Luboš Uhliarik <luhliari@redhat.com> - 2:1.26.3-7
+- Resolves: RHEL-176217 - nginx: NGINX: Arbitrary Code
+
 * Tue Mar 31 2026 Zdenek Dohnal <zdohnal@redhat.com> - 2:1.26.3-6
 - Resolves: RHEL-157874 CVE-2026-32647 nginx: NGINX: Denial of Service or
   Code Execution via specially crafted MP4 files