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OpenAdvisories
None · 0.0 CVE-2026-54920 EUVD-2026-65182

OpenEXR: Integer overflow and uninitialized pointer cause invalid delete in OpenEXRUtil image resize

Published Aug 25, 2026 · Updated Aug 25, 2026 · Assigned by GitHub_M

Description

OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. In versions 3.4.0 through 3.4.12, a reachable assertion failure in the HTJ2K decode path allows a crafted HTJ2K-compressed EXR file to cause an unconditional process abort in any application that calls exr_start_read() on untrusted input, resulting in denial of service. The crash is triggered by a QCD marker whose lower five bits are zero, which OpenEXR passes into the vendored OpenJPH library while constructing the codestream and evaluating its quantization delta parameters. OpenJPH uses an assertion rather than a recoverable error to validate those bits, so any invalid value calls abort() directly and cannot be intercepted by surrounding error handling, a problem compounded by OpenEXR wrapping only its internal HT header parser in error handling while leaving the later codestream read and construction calls unprotected. This issue has been resolved in version 3.4.13.

Affected products

VendorProductAffectedFixed
AcademySoftwareFoundation openexr < 3.2.10, >= 3.3.0, <= 3.3.12, >= 3.4.0, <= 3.4.13 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 openexr 3.4.14-0.1 —
Debian 13 openexr 3.2.12-1~deb13u1 —
Debian 12 openexr No fix yet —
ReleasePackageFixed inAdvisory
Ubuntu 26.10 openexr No fix yet —
Show 6 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu Pro 26.04 LTS openexr No fix yet —
Ubuntu Pro 24.04 LTS openexr No fix yet —
Ubuntu Pro 22.04 LTS openexr No fix yet —
Ubuntu Pro 20.04 LTS openexr No fix yet —
Ubuntu Pro 18.04 LTS openexr No fix yet —
Ubuntu Pro 16.04 LTS openexr No fix yet —
ReleasePackageFixed inAdvisory
SLES 15 SP7 openexr 2.2.1-150000.3.52.1 SUSE-SU-2026:3169-1
SLES 12 SP5 openexr 2.1.0-6.48.1 SUSE-SU-2026:3168-1
Show 2 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES for SAP 16.0 openexr 3.2.2-160000.9.1 SUSE-SU-2026:22653-1
SLES 16.0 openexr 3.2.2-160000.9.1 SUSE-SU-2026:22653-1
ReleasePackageFixed inAdvisory
openSUSE Tumbleweed openexr 3.4.13-1.1 openSUSE-SU-2026:11218-1
openSUSE Leap 16.0 openexr 3.2.2-160000.9.1 openSUSE-SU-2026:21336-1

Azure Linux

ReleasePackageFixed inAdvisory
Azure Linux 3 OpenEXR No fix yet —

Advisories 5

References