diff --git a/pkgs/tools/networking/curl/7.82.0-openssl-fix-CN-check.patch b/pkgs/tools/networking/curl/7.82.0-openssl-fix-CN-check.patch
new file mode 100644
index 000000000000..5d84f5124995
--- /dev/null
+++ b/pkgs/tools/networking/curl/7.82.0-openssl-fix-CN-check.patch
@@ -0,0 +1,30 @@
+From 911714d617c106ed5d553bf003e34ec94ab6a136 Mon Sep 17 00:00:00 2001
+From: Daniel Stenberg <daniel@haxx.se>
+Date: Tue, 8 Mar 2022 13:38:13 +0100
+Subject: [PATCH] openssl: fix CN check error code
+
+Due to a missing 'else' this returns error too easily.
+
+Regressed in: d15692ebb
+
+Reported-by: Kristoffer Gleditsch
+Fixes #8559
+Closes #8560
+---
+ lib/vtls/openssl.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/lib/vtls/openssl.c b/lib/vtls/openssl.c
+index 0b79fc50a9c5..4618beeb3867 100644
+--- a/lib/vtls/openssl.c
++++ b/lib/vtls/openssl.c
+@@ -1817,7 +1817,8 @@ CURLcode Curl_ossl_verifyhost(struct Curl_easy *data, struct connectdata *conn,
+               memcpy(peer_CN, ASN1_STRING_get0_data(tmp), peerlen);
+               peer_CN[peerlen] = '\0';
+             }
+-            result = CURLE_OUT_OF_MEMORY;
++            else
++              result = CURLE_OUT_OF_MEMORY;
+           }
+         }
+         else /* not a UTF8 name */
diff --git a/pkgs/tools/networking/curl/default.nix b/pkgs/tools/networking/curl/default.nix
index c032ba61c123..a7cac48d52d7 100644
--- a/pkgs/tools/networking/curl/default.nix
+++ b/pkgs/tools/networking/curl/default.nix
@@ -66,6 +66,7 @@ stdenv.mkDerivation rec {
 
   patches = [
     ./7.79.1-darwin-no-systemconfiguration.patch
+    ./7.82.0-openssl-fix-CN-check.patch
   ];
 
   outputs = [ "bin" "dev" "out" "man" "devdoc" ];