OpenJPEG 2.5.1 has been released
https://groups.google.com/g/openjpeg/c/othStX49Yc8
and includes a fix
https://github.com/uclouvain/openjpeg/pull/1509
for CVE-2021-3575.
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Andrew C. Aitchison Kendal, UK
andrew at aitchison.me.uk