Index: openacs-4/packages/acs-tcl/tcl/security-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-tcl/tcl/security-procs.tcl,v
diff -u -r1.126.2.81 -r1.126.2.82
--- openacs-4/packages/acs-tcl/tcl/security-procs.tcl	20 Feb 2023 15:48:46 -0000	1.126.2.81
+++ openacs-4/packages/acs-tcl/tcl/security-procs.tcl	27 Feb 2023 11:37:42 -0000	1.126.2.82
@@ -1503,8 +1503,14 @@
             ns_log Warning "__ad_verify_signature: token_id <$raw_token_id> is not an integer"
             return 0
         }
-        set secret_token [sec_get_token $raw_token_id]
 
+        try {
+            set secret_token [sec_get_token $raw_token_id]
+        } on error {errmsg} {
+            ns_log Warning "__ad_verify_signature: token_id <$raw_token_id> validation returns '$errmsg'"
+            return 0
+        }
+
     } else {
         set secret_token $secret
     }