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8.6 High

CVE-2026-34588 OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for…

Description

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From 3.1.0 to before 3.2.7, 3.3.9, and 3.4.9, internal_exr_undo_piz() advances the working wavelet pointer with signed 32-bit arithmetic. Because nx, ny, and wcount are int, a crafted EXR file can make this product overflow and wrap. The next channel then decodes from an incorrect address. The wavelet decode path operates in place, so this yields both out-of-bounds reads and out-of-bounds writes. This vulnerability is fixed in 3.2.7, 3.3.9, and 3.4.9.

Affected products and versions

Product Affected versions Fixed in
openexr 3.4 3.4.0 → < 3.4.9 3.4.9
openexr 3.3 3.3.0 → < 3.3.9 3.3.9
openexr 3.2 3.2.0 → < 3.2.7 3.2.7
openexr 3.1 3.1.0 → 3.1.13 No fix stated
Red Hat Enterprise Linux AppStream EUS (v. 10.0) Versions not published
Red Hat Enterprise Linux AppStream (v. 10) Versions not published
Red Hat Enterprise Linux AppStream E4S (v.9.0) Versions not published
Red Hat Enterprise Linux AppStream E4S (v.9.2) Versions not published
Red Hat Enterprise Linux AppStream EUS (v.9.4) Versions not published
Show the 18 other branches
Product Affected versions Fixed in
Red Hat Enterprise Linux AppStream EUS (v.9.6) Versions not published
Red Hat Enterprise Linux AppStream (v. 9) Versions not published
Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) Versions not published
Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) Versions not published
Red Hat CodeReady Linux Builder EUS (v.9.4) Versions not published
Red Hat CodeReady Linux Builder EUS (v.9.6) Versions not published
Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) Versions not published
Red Hat AI Inference Server 3.3 1782352847 earliest → < 1782352847 1782352847
Red Hat Enterprise Linux 6 Versions not published
Red Hat Enterprise Linux 7 Versions not published
Red Hat Enterprise Linux 8 Versions not published
Red Hat Enterprise Linux 10 Versions not published
Red Hat Enterprise Linux 10.0 Extended Update Support Versions not published
Red Hat Enterprise Linux 9 Versions not published
Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Versions not published
Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Versions not published
Red Hat Enterprise Linux 9.4 Extended Update Support Versions not published
Red Hat Enterprise Linux 9.6 Extended Update Support Versions not published

References

Timeline

  1. Published
  2. Last modified

Other CVEs of openexr

The 47 CVEs of openexr →
CVE-2026-59981 OpenEXR is the reference implementation and specification for the EXR image file format, widely used in the motion… 7.1 High CVE-2026-68514 OpenEXR is the reference implementation and specification for the EXR image file format, widely used in the motion… 5.5 Medium CVE-2026-68515 OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture… 7.1 High CVE-2026-68513 OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture… 7.1 High
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