File curl-CVE-2026-3783.patch of Package curl.43131

From e3d7401a32a46516c9e5ee877e613e62ed35bddc Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Fri, 6 Mar 2026 23:13:07 +0100
Subject: [PATCH] http: only send bearer if auth is allowed

Verify with test 2006

Closes #20843
---
 lib/http.c             |  1 +
 tests/data/Makefile.am |  2 +-
 tests/data/test2006    | 98 ++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 100 insertions(+), 1 deletion(-)
 create mode 100644 tests/data/test2006

Index: curl-8.14.1/lib/http.c
===================================================================
--- curl-8.14.1.orig/lib/http.c
+++ curl-8.14.1/lib/http.c
@@ -697,6 +697,7 @@ output_auth_headers(struct Curl_easy *da
   if(authstatus->picked == CURLAUTH_BEARER) {
     /* Bearer */
     if((!proxy && data->set.str[STRING_BEARER] &&
+        Curl_auth_allowed_to_host(data) &&
         !Curl_checkheaders(data, STRCONST("Authorization")))) {
       auth = "Bearer";
       result = http_output_bearer(data);
Index: curl-8.14.1/tests/data/Makefile.am
===================================================================
--- curl-8.14.1.orig/tests/data/Makefile.am
+++ curl-8.14.1/tests/data/Makefile.am
@@ -242,7 +242,7 @@ test1955 test1956 test1957 test1958 test
 test1970 test1971 test1972 test1973 test1974 test1975 test1976 test1977 \
 test1978 test1979 test1980 \
 \
-test2000 test2001 test2002 test2003 test2004 test2005 \
+test2000 test2001 test2002 test2003 test2004 test2005 test2006 \
 \
                                                                test2023 \
 test2024 test2025 test2026 test2027 test2028 test2029 test2030 test2031 \
Index: curl-8.14.1/tests/data/test2006
===================================================================
--- /dev/null
+++ curl-8.14.1/tests/data/test2006
@@ -0,0 +1,97 @@
+<testcase>
+<info>
+<keywords>
+netrc
+HTTP
+</keywords>
+</info>
+# Server-side
+<reply>
+<data crlf="yes">
+HTTP/1.1 301 Follow this you fool
+Date: Tue, 09 Nov 2010 14:49:00 GMT
+Server: test-server/fake
+Last-Modified: Tue, 13 Jun 2000 12:10:00 GMT
+ETag: "21025-dc7-39462498"
+Accept-Ranges: bytes
+Content-Length: 6
+Connection: close
+Location: http://b.com/%TESTNUMBER0002
+
+-foo-
+</data>
+
+<data2 crlf="yes">
+HTTP/1.1 200 OK
+Date: Tue, 09 Nov 2010 14:49:00 GMT
+Server: test-server/fake
+Last-Modified: Tue, 13 Jun 2000 12:10:00 GMT
+ETag: "21025-dc7-39462498"
+Accept-Ranges: bytes
+Content-Length: 7
+Connection: close
+
+target
+</data2>
+
+<datacheck crlf="headers">
+HTTP/1.1 301 Follow this you fool
+Date: Tue, 09 Nov 2010 14:49:00 GMT
+Server: test-server/fake
+Last-Modified: Tue, 13 Jun 2000 12:10:00 GMT
+ETag: "21025-dc7-39462498"
+Accept-Ranges: bytes
+Content-Length: 6
+Connection: close
+Location: http://b.com/%TESTNUMBER0002
+
+HTTP/1.1 200 OK
+Date: Tue, 09 Nov 2010 14:49:00 GMT
+Server: test-server/fake
+Last-Modified: Tue, 13 Jun 2000 12:10:00 GMT
+ETag: "21025-dc7-39462498"
+Accept-Ranges: bytes
+Content-Length: 7
+Connection: close
+
+target
+</datacheck>
+</reply>
+
+# Client-side
+<client>
+<server>
+http
+</server>
+<features>
+proxy
+</features>
+<name>
+.netrc default with redirect plus oauth2-bearer
+</name>
+<command>
+--netrc --netrc-file %LOGDIR/netrc%TESTNUMBER --oauth2-bearer SECRET_TOKEN -L -x http://%HOSTIP:%HTTPPORT/ http://a.com/
+</command>
+<file name="%LOGDIR/netrc%TESTNUMBER" >
+default login testuser password testpass
+</file>
+</client>
+
+<verify>
+<protocol crlf="headers">
+GET http://a.com/ HTTP/1.1
+Host: a.com
+Authorization: Bearer SECRET_TOKEN
+User-Agent: curl/%VERSION
+Accept: */*
+Proxy-Connection: Keep-Alive
+
+GET http://b.com/%TESTNUMBER0002 HTTP/1.1
+Host: b.com
+User-Agent: curl/%VERSION
+Accept: */*
+Proxy-Connection: Keep-Alive
+
+</protocol>
+</verify>
+</testcase>