CVE-2026-55783

NanaZip (a 7‑Zip derivative) is affected prior to version 6.5.1749.0. The in‑house IInArchive handlers in NanaZip.Codecs dereference the caller‑supplied Indices array during Extract when Indices is NULL and NumItems is 0xFFFFFFFF, in the code path for a full archive extraction (Test or Extract al...