PT-2026-47110 · Julia · Openjpeg Jll

Published 2026-05-26 · Updated 2026-05-26

OSV

A flaw was found in the opj2 decompress program in openjpeg2 2.4.0 in the way it handles an input directory with a large number of files. When it fails to allocate a buffer to store the filenames of the input directory, it calls free() on an uninitialized pointer, leading to a segmentation fault and a denial of service.

Related Identifiers

JLSEC-2026-547

Affected Products

Openjpeg Jll

References · 8

• https://osv.dev/vulnerability/JLSEC-2026-547 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MIWSQFQWXDU4MT3XTVAO6HC7TVL3NHS7 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RMKBAMK2CAM5TMC5TODKVCE5AAPTD5YV · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ROSN5NRUFOH7HGLJ4ZSKPGAKLFXJALW4 · Vendor Advisory
• https://github.com/uclouvain/openjpeg/issues/1368 · Note
• https://lists.debian.org/debian-lts-announce/2025/04/msg00002.html · Note
• https://lists.debian.org/debian-lts-announce/2022/04/msg00006.html · Note
• https://security.gentoo.org/glsa/202209-04 · Note