Dear Users, I have released version 5.81 of stunnel. ### Version 5.81, 2026.09.16, urgency: HIGH * Security bugfixes - OpenSSL DLLs updated to version 3.5.8. - Fixed truncation and out-of-bounds reads when inheriting binary session ticket keys containing null bytes (thanks to Jose A. Diaz). - Prevented OCSP stapling response failures from terminating the daemon (thanks to Jose A. Diaz). * Bugfixes - Avoided spurious sysconf error messages after successful descriptor-limit queries on platforms where a successful call may change errno. - Fixed a potential crash when parsing empty ASCII PSK secrets (thanks to Jose A. Diaz). - Fixed a memory leak after DTLS listener poll errors and timeouts (thanks to Jose A. Diaz). - Fixed memory leaks during NTLM HTTP proxy negotiation (thanks to Jose A. Diaz). - Fixed early startup logging before thread lock initialization (thanks to Jose A. Diaz). - Rejected excessively nested configuration includes instead of consuming the process stack recursively. * Features - Improved TLS and DTLS shutdown diagnostics. Home page: https://www.stunnel.org/ Download: https://www.stunnel.org/downloads.html SHA-256 hashes: 1d1b48fa26a06a5a035ca5ddc7377c75d5d78ad6f3b4886352a84818c854f932 stunnel-5.81.tar.gz ec16df6313dced7c84f20dbb9c677847d0a5219bdd35ab40cde18c135abd0411 stunnel-5.81-win64-installer.exe 5eec038e3a9c44d135942c2486ffa5156c02cfcf31bb5b7a65c6134c459a49f9 stunnel-5.81-android.zip Best regards, Mike