Description

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. In versions 3.3.0 through 3.3.6 and 3.4.0 through 3.4.4, a heap-buffer-overflow (OOB read) occurs in the `istream_nonparallel_read` function in `ImfContextInit.cpp` when parsing a malformed EXR file through a memory-mapped `IStream`. A signed integer subtraction produces a negative value that is implicitly converted to `size_t`, resulting in a massive length being passed to `memcpy`. Versions 3.3.7 and 3.4.5 contain a patch.

INFO

Published Date :

2026-02-24T02:26:16.659Z

Last Modified :

2026-02-24T20:03:54.667Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-26981 vulnerability.

Vendors Products
Academysoftwarefoundation
  • Openexr
Openexr
  • Openexr

CVSS Vulnerability Scoring System

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