Libsixel · Libsixel · CVE-2021-46700
**Name of the Vulnerable Software and Affected Versions**
libsixel version 1.8.6
**Description**
The issue is related to a double free error in the `sixel encoder output without macro` function, which is called from `sixel encoder encode frame` in encoder.c.
**Recommendations**
For libsixel version 1.8.6, at the moment, there is no information about a newer version that contains a fix for this vulnerability.