https://groups.google.com/g/golang-announce/c/ufZ8WpEsA3A/m/XDxq7uidAgAJ
announces:
Hello gophers,
We have just released Go versions 1.24.4 and 1.23.10, minor point releases.
These minor releases include 3 security fixes following the security policy:
* net/http: sensitive headers not cleared on cross-origin redirect
Proxy-Authorization and Proxy-Authenticate headers persisted on
cross-origin redirects potentially leaking sensitive information.
Thanks to Takeshi Kaneko (GMO Cybersecurity by Ierae, Inc.) for reporting
this issue.
This is CVE-2025-4673 and Go issue https://go.dev/issue/73816.
* os: inconsistent handling of O_CREATE|O_EXCL on Unix and Windows
os.OpenFile(path, os.O_CREATE|O_EXCL) behaved differently on Unix and
Windows systems when the target path was a dangling symlink. On Unix
systems, OpenFile with O_CREATE and O_EXCL flags never follows symlinks.
On Windows, when the target path was a symlink to a nonexistent location,
OpenFile would create a file in that location.
OpenFile now always returns an error when the O_CREATE and O_EXCL flags
are both set and the target path is a symlink.
Thanks to Junyoung Park and Dong-uk Kim of KAIST Hacking Lab for
discovering this issue.
This is CVE-2025-0913 and Go issue https://go.dev/issue/73702.
* crypto/x509: usage of ExtKeyUsageAny disables policy validation
Calling Verify with a VerifyOptions.KeyUsages that contains ExtKeyUsageAny
unintentionally disabledpolicy validation. This only affected certificate
chains which contain policy graphs, which are rather uncommon.
Thanks to Krzysztof Skrzętnicki (@Tener) of Teleport for reporting this
issue.
This is CVE-2025-22874 and Go issue https://go.dev/issue/73612.
View the release notes for more information:
https://go.dev/doc/devel/release#go1.24.4
You can download binary and source distributions from the Go website:
https://go.dev/dl/
To compile from source using a Git clone, update to the release with
git checkout go1.24.4 and build as usual.
Thanks to everyone who contributed to the releases.
Cheers,
Carlos and Michael for the Go team
