diff -Naru /s/mutt-2.2.12/globals.h ./globals.h
--- /s/mutt-2.2.12/globals.h	2023-09-01 08:32:23.000000000 +0200
+++ ./globals.h	2023-09-10 10:13:54.320014522 +0200
@@ -250,6 +250,8 @@
 WHERE short ScoreThresholdRead;
 WHERE short ScoreThresholdFlag;
 
+WHERE short SaveFilePerm;
+
 #ifdef USE_SIDEBAR
 WHERE short SidebarWidth;
 WHERE LIST *SidebarWhitelist;
diff -Naru /s/mutt-2.2.12/init.h ./init.h
--- /s/mutt-2.2.12/init.h	2023-09-01 08:32:23.000000000 +0200
+++ ./init.h	2023-09-10 10:18:22.900015368 +0200
@@ -3460,6 +3460,11 @@
   ** \fBNote:\fP This only applies to mbox and MMDF folders, Mutt does not
   ** delete MH and Maildir directories.
   */
+  { "save_file_perm", DT_NUM, R_NONE, {.p=&SaveFilePerm}, {.l=0600} },
+  /*
+  ** This variable controls the permissions of saved attachments.
+  ** Use standard POSIX permissions in octal notation, i.e. 0644.
+  */
   { "save_history",     DT_NUM,  R_NONE, {.p=&SaveHist}, {.l=0} },
   /*
   ** .pp
diff -Naru /s/mutt-2.2.12/main.c ./main.c
--- /s/mutt-2.2.12/main.c	2023-09-01 08:32:23.000000000 +0200
+++ ./main.c	2023-09-10 10:15:20.128014792 +0200
@@ -690,7 +690,10 @@
   mutt_error = mutt_nocurses_error;
   mutt_message = mutt_nocurses_error;
   SRAND (time (NULL));
-  umask (077);
+  if(SaveFilePerm==600)
+    umask (077);
+  else
+    umask (000);
 
   memset (Options, 0, sizeof (Options));
   memset (QuadOptions, 0, sizeof (QuadOptions));
diff -Naru /s/mutt-2.2.12/muttlib.c ./muttlib.c
--- /s/mutt-2.2.12/muttlib.c	2023-08-18 05:03:18.000000000 +0200
+++ ./muttlib.c	2023-09-10 10:36:18.872018760 +0200
@@ -2562,6 +2562,22 @@
   BUFFER *safe_file = NULL;
   BUFFER *safe_dir = NULL;
 
+  /* Convert file permission from decadic to octal */
+  unsigned short own=0;
+  unsigned short grp=0;
+  unsigned short oth=0;
+  unsigned short SFPoct=0;
+  own=SaveFilePerm/100;
+  grp=(SaveFilePerm-own*100)/10;
+  oth=SaveFilePerm-(own*100)-(grp*10);
+  if(own>7||grp>7||oth>7)
+  {
+    SFPoct=0600;
+    dprint(1,(debugfile,"safe_open: Value %d is not valid octal permission mask.\n",SaveFilePerm));
+  }
+  else
+    SFPoct=own<<6|grp<<3|oth;
+
   if (flags & O_EXCL)
   {
     safe_file = mutt_buffer_pool_get ();
@@ -2573,7 +2589,7 @@
       goto cleanup;
     }
 
-    if ((fd = open (mutt_b2s (safe_file), flags, 0600)) < 0)
+    if ((fd = open (mutt_b2s (safe_file), flags, SFPoct)) < 0)
     {
       rmdir (mutt_b2s (safe_dir));
       goto cleanup;
@@ -2588,7 +2604,7 @@
     }
   }
 
-  if ((fd = open (path, flags & ~O_EXCL, 0600)) < 0)
+  if ((fd = open (path, flags & ~O_EXCL, SFPoct)) < 0)
     goto cleanup;
 
   /* make sure the file is not symlink */