Dear Users,
I have released version 5.82 of stunnel.
### Version 5.82, 2026.09.17, urgency: MEDIUM
* Bugfixes
- Fixed premature connection closure on macOS when the peer half-closed
the plaintext connection while data still needed to be forwarded.
* Features
- Build compatibility with LibreSSL 4.3.2 (thanks to Masahito Yamaga).
Home page: https://www.stunnel.org/
Download: https://www.stunnel.org/downloads.html
SHA-256 hashes:
8e7438ccd6b3a2ab05182d0846e112a56a7f557ecdee40de07bf67820008bef7
stunnel-5.82.tar.gz
722c1ad626919af2b0034666b4d19cc4795e925c32f60e8f3c59af4fb3ad2dfc
stunnel-5.82-win64-installer.exe
e5bdb7fefaac57afebd8276165b2c69b92b4e717d0a00302d2431541936cb60a
stunnel-5.82-android.zip
Best regards,
Mike
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
