This is to announce gsasl-2.2.3, a stable release.

GNU SASL is a modern C library that implement the network security
protocol Simple Authentication and Security Layer (SASL).  The framework
itself and a couple of common SASL mechanisms are implemented.  GNU SASL
can be used by network applications for IMAP, SMTP, XMPP and other
protocols to provide authentication services.  Supported mechanisms
include CRAM-MD5, EXTERNAL, GSSAPI, ANONYMOUS, PLAIN, SECURID,
DIGEST-MD5, SCRAM-SHA-1(-PLUS), SCRAM-SHA-256(-PLUS), GS2-KRB5, SAML20,
OPENID20, LOGIN, and NTLM.

There have been 23 commits by 4 people in the 58 weeks since 2.2.2.

See the NEWS below for a brief summary.

Thanks to everyone who has contributed!
The following people contributed changes to this release:

  Noah Meyerhans (1)
  Richard Biener (2)
  Simon Josefsson (19)
  zhangph (1)

Happy Hacking,
Simon [on behalf of the gsasl maintainers]
==================================================================

Here is the GNU gsasl home page:
  https://www.gnu.org/software/gsasl/

Manual:
  https://www.gnu.org/software/gsasl/manual/
  https://www.gnu.org/software/gsasl/manual/gsasl.html - HTML format
  https://www.gnu.org/software/gsasl/manual/gsasl.pdf - PDF format

API Reference manual:
  https://www.gnu.org/software/gsasl/reference/ - GTK-DOC HTML

Doxygen documentation:
  https://www.gnu.org/software/gsasl/doxygen/ - HTML format
  https://www.gnu.org/software/gsasl/doxygen/gsasl.pdf - PDF format

For development snapshot QA analysis see:
  https://gsasl.gitlab.io/gsasl/coverage/
  https://gsasl.gitlab.io/gsasl/cyclo/
  https://gsasl.gitlab.io/gsasl/clang-analyzer/

If you need help to use GNU SASL, or want to help others, you are
invited to join our help-gsasl mailing list, see:
  https://lists.gnu.org/mailman/listinfo/help-gsasl

Here are the compressed sources and a GPG detached signature:
  https://ftp.gnu.org/gnu/gsasl/gsasl-2.2.3.tar.gz
  https://ftp.gnu.org/gnu/gsasl/gsasl-2.2.3.tar.gz.sig

Here is minimal source-only "git archive" sources:
  https://ftp.gnu.org/gnu/gsasl/gsasl-v2.2.3-src.tar.gz
  https://ftp.gnu.org/gnu/gsasl/gsasl-v2.2.3-src.tar.gz.sig

Here are Sigsum Proofs:
  https://ftp.gnu.org/gnu/gsasl/gsasl-2.2.3.tar.gz.proof
  https://ftp.gnu.org/gnu/gsasl/gsasl-v2.2.3-src.tar.gz.proof

Use a mirror for higher download bandwidth:
  https://www.gnu.org/order/ftp.html

Here are the SHA256 and SHA3-256 checksums:

  SHA256 (gsasl-2.2.3.tar.gz) = /uNsZqwS0y078pp7Na2PREt5lv42m52l02/WrmScaOs=
  SHA3-256 (gsasl-2.2.3.tar.gz) = KwZ75xrgg346VStrlZlLKFVdIMDxmH8f4ulhYOfovNA=

  SHA256 (gsasl-v2.2.3-src.tar.gz) = 
UZ1rp6doeclbvVGAw5v54CeEHVqimGcUPqGTYK2e8HY=
  SHA3-256 (gsasl-v2.2.3-src.tar.gz) = 
wszDHNgEvAzjzSP7KRZW+P0O2WuZTDnp9mM7xw3muE0=

Verify the base64 SHA256 checksum with 'cksum -a sha256 --check'
from coreutils-9.2 or OpenBSD's cksum since 2007.

Verify the base64 SHA3-256 checksum with 'cksum -a sha3 --check'
from coreutils-9.8.

Use a .sig file to verify that the corresponding file (without the
.sig suffix) is intact.  First, be sure to download both the .sig file
and the corresponding tarball.  Then, run a command like this:

  gpg --verify gsasl-2.2.3.tar.gz.sig

If that command fails because you don't have the required public key,
or that public key has expired, try the following commands to retrieve
or refresh it, and then rerun the 'gpg --verify' command.

  gpg --recv-keys 51722B08FE4745A2

  wget -q -O- 
'https://savannah.gnu.org/project/release-gpgkeys.php?group=gsasl&download=1' | 
gpg --import -

As a last resort to find the key, you can try the official GNU
keyring:

  wget -q https://ftp.gnu.org/gnu/gnu-keyring.gpg
  gpg --keyring gnu-keyring.gpg --verify gsasl-2.2.3.tar.gz.sig

Use the .proof files to verify the Sigsum proof.  These files are like
signatures but with extra transparency: you can cryptographically verify
that every signature is logged in a public append-only log, so you can
say with confidence what signatures exists.  This makes hidden releases
no longer deniable for the same public key.

Releases are Sigsum-signed with the following public key:

  cat <<EOF > gsasl-sigsum-key.pub
ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAILzCFcHHrKzVSPDDarZPYqn89H5TPaxwcORgRg+4DagE
EOF

Run a command like this to verify downloaded artifacts:

  sigsum-verify -k gsasl-sigsum-key.pub -P sigsum-generic-2025-1 \
        gsasl-2.2.3.tar.gz.proof < gsasl-2.2.3.tar.gz

You may learn more about Sigsum concepts and find instructions how to
download the tools here: https://www.sigsum.org/getting-started/

This release is based on the gsasl git repository, available as

  git clone https://https.git.savannah.gnu.org/git/gsasl.git

with commit 727eb89e5b779ce831c38b805a7710df65298325 tagged as v2.2.3.

For a summary of changes and contributors, see:

  https://gitweb.git.savannah.gnu.org/gitweb/?p=gsasl.git;a=shortlog;h=v2.2.3

or run this command from a git-cloned gsasl directory:

  git shortlog v2.2.2..v2.2.3

This release was bootstrapped with the following tools:
  Gnulib 2026-04-29 aa527567a732fbb36d21d576fcd1a2c8486c812d
  Autoconf 2.72
  Automake 1.17
  Libtoolize 2.4.7
  Make 4.4.1
  Makeinfo 7.1.1
  Help2man 1.49.2
  Gperf 3.3
  Gengetopt 2.23
  Gtkdocize 1.34.0
  Tar 1.35
  Gzip 1.14
  Guix 1.5.0rc1

NEWS

* Noteworthy changes in release 2.2.3 (2026-05-13) [stable]

** DIGEST-MD5: Fix NULL pointer dereference in parser.
The code can be reached without authentication, in both client and
server.  Report and fix by zhangph <[email protected]> in
<https://lists.gnu.org/archive/html/help-gsasl/2026-05/msg00000.html>.

** Support Dovecot 2.3 and 2.4 in tests/gsasl-dovecot-gssapi.sh.

** Update gnulib files and various minor fixes.

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