CVE-2026-34378 (GCVE-0-2026-34378)
Vulnerability from cvelistv5
Published
2026-04-06 15:19
Modified
2026-04-07 03:07
CWE
  • CWE-190 - Integer Overflow or Wraparound
Summary
OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From 3.4.0 to before 3.4.9, a missing bounds check on the dataWindow attribute in EXR file headers allows an attacker to trigger a signed integer overflow in generic_unpack(). By setting dataWindow.min.x to a large negative value, OpenEXRCore computes an enormous image width, which is later used in a signed integer multiplication that overflows, causing the process to terminate with SIGILL via UBSan. This vulnerability is fixed in 3.4.9.
Impacted products
Vendor Product Version
AcademySoftwareFoundation openexr Version: >= 3.4.0, < 3.4.9
Create a notification for this product.
Show details on NVD website


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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