If you would like to report a public issue (for example, one with a released CVE number), please report it using the [https://bugzilla.yoctoproject.org/enter_bug.cgi?product=Security Security Bugzilla]
If you are dealing with a not-yet released or urgent issue, please send a message to security AT yoctoproject DOT org, including as many details as possible: the layer or software module affected, the recipe and its version, and any example code, if available.
See [https://wiki.yoctoproject.org/wiki/Stable_Release_and_LTS Stable release and LTS] for detailed info regarding the policies and maintenance of Stable branches.
The [https://wiki.yoctoproject.org/wiki/Releases Release page] contains a list of all releases of the Yocto Project. Versions in grey are no longer actively maintained with security patches, but well-tested patches may still be accepted for them for significant issues.