Your message dated Sat, 16 May 2026 10:23:17 +0000
with message-id <[email protected]>
and subject line Released with 13.5
has caused the Debian Bug report #1135209,
regarding trixie-pu: package modsecurity-crs/3.3.7-1+deb13u2
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
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--
1135209: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1135209
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: release.debian.org
Severity: normal
Tags: security
X-Debbugs-Cc: [email protected], [email protected], Debian
Security Team <[email protected]>
Control: affects -1 + src:modsecurity-crs
User: [email protected]
Usertags: pu
[ Reason ]
Fix for CVE-2026-33691
[ Impact ]
Bypass security rules allowing upload of files with dangerous
extensions by inserting whitespace padding in the filename.
[ Tests ]
Fixed and tested by upstream.
[ Risks ]
Low risk, simple patch.
[ Checklist ]
[x] *all* changes are documented in the d/changelog
[x] I reviewed all changes and I approve them
[x] attach debdiff against the package in (old)stable
[x] the issue is verified as fixed in unstable
[ Changes ]
Remove whitespaces in uploaded file names before checking its file
extension.
diff -Nru modsecurity-crs-3.3.7/debian/changelog
modsecurity-crs-3.3.7/debian/changelog
--- modsecurity-crs-3.3.7/debian/changelog 2026-01-10 17:00:48.000000000
+0100
+++ modsecurity-crs-3.3.7/debian/changelog 2026-03-29 18:29:12.000000000
+0200
@@ -1,3 +1,9 @@
+modsecurity-crs (3.3.7-1+deb13u2) trixie-security; urgency=medium
+
+ * Fixes CVE-2026-33691
+
+ -- Ervin Hegedüs <[email protected]> Sun, 29 Mar 2026 18:29:12 +0200
+
modsecurity-crs (3.3.7-1+deb13u1) trixie-security; urgency=medium
* Fixes CVE-2026-21876 (Closes: #1125084)
diff -Nru modsecurity-crs-3.3.7/debian/patches/cve-2026-33691.patch
modsecurity-crs-3.3.7/debian/patches/cve-2026-33691.patch
--- modsecurity-crs-3.3.7/debian/patches/cve-2026-33691.patch 1970-01-01
01:00:00.000000000 +0100
+++ modsecurity-crs-3.3.7/debian/patches/cve-2026-33691.patch 2026-03-29
18:29:12.000000000 +0200
@@ -0,0 +1,44 @@
+From: Ervin Hegedus <[email protected]>
+Date: Sun, 29 Mar 2026 18:23:55 +0200
+Subject: Add patch from upstream to fix CVE-2026-33691
+
+---
+ rules/REQUEST-932-APPLICATION-ATTACK-RCE.conf | 2 +-
+ rules/REQUEST-933-APPLICATION-ATTACK-PHP.conf | 4 ++--
+ 2 files changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/rules/REQUEST-932-APPLICATION-ATTACK-RCE.conf
b/rules/REQUEST-932-APPLICATION-ATTACK-RCE.conf
+index 002088a..aca6301 100644
+--- a/rules/REQUEST-932-APPLICATION-ATTACK-RCE.conf
++++ b/rules/REQUEST-932-APPLICATION-ATTACK-RCE.conf
+@@ -573,7 +573,7 @@ SecRule
FILES|REQUEST_HEADERS:X-Filename|REQUEST_HEADERS:X_Filename|REQUEST_HEAD
+ phase:2,\
+ block,\
+ capture,\
+- t:none,t:lowercase,\
++ t:none,t:lowercase,t:removeWhitespace,\
+ msg:'Restricted File Upload Attempt',\
+ logdata:'Matched Data: %{TX.0} found within %{MATCHED_VAR_NAME}:
%{MATCHED_VAR}',\
+ tag:'application-multi',\
+diff --git a/rules/REQUEST-933-APPLICATION-ATTACK-PHP.conf
b/rules/REQUEST-933-APPLICATION-ATTACK-PHP.conf
+index 707ed45..666643e 100644
+--- a/rules/REQUEST-933-APPLICATION-ATTACK-PHP.conf
++++ b/rules/REQUEST-933-APPLICATION-ATTACK-PHP.conf
+@@ -91,7 +91,7 @@ SecRule
FILES|REQUEST_HEADERS:X-Filename|REQUEST_HEADERS:X_Filename|REQUEST_HEAD
+ phase:2,\
+ block,\
+ capture,\
+- t:none,t:lowercase,\
++ t:none,t:lowercase,t:removeWhitespace,\
+ msg:'PHP Injection Attack: PHP Script File Upload Found',\
+ logdata:'Matched Data: %{TX.0} found within %{MATCHED_VAR_NAME}:
%{MATCHED_VAR}',\
+ tag:'application-multi',\
+@@ -673,7 +673,7 @@ SecRule
FILES|REQUEST_HEADERS:X-Filename|REQUEST_HEADERS:X_Filename|REQUEST_HEAD
+ phase:2,\
+ block,\
+ capture,\
+- t:none,t:lowercase,\
++ t:none,t:lowercase,t:removeWhitespace,\
+ msg:'PHP Injection Attack: PHP Script File Upload Found',\
+ logdata:'Matched Data: %{TX.0} found within %{MATCHED_VAR_NAME}:
%{MATCHED_VAR}',\
+ tag:'application-multi',\
diff -Nru modsecurity-crs-3.3.7/debian/patches/series
modsecurity-crs-3.3.7/debian/patches/series
--- modsecurity-crs-3.3.7/debian/patches/series 2026-01-10 17:00:48.000000000
+0100
+++ modsecurity-crs-3.3.7/debian/patches/series 2026-03-29 18:29:12.000000000
+0200
@@ -1,2 +1,3 @@
fix_paths
cve-2026-21876.patch
+cve-2026-33691.patch
\ No newline at end of file
--- End Message ---
--- Begin Message ---
Package: release.debian.org
Version: 13.5
This update has been released as part of Debian 13.5.
--- End Message ---
