OpenEXR is the reference implementation and specification for the EXR image file format, widely used in the motion picture industry. In versions 3.3.0 through 3.3.12 and 3.4.0 through 3.4.13, the PyOpenEXR Python bindings contain a heap out-of-bounds write triggered when reading a crafted deep scanline EXR file. When a deep file declares a literal channel named left alongside layer-prefixed RGB channels left.R, left.G, and left.B, the wrapper processes the literal left channel first and allocates a scalar deep sample array for it, then reuses that same array as the coalesced destination for the prefixed RGB group. The deep reader registers sample slices with an RGB stride (three lanes) into storage that was allocated with scalar shape, so decoding the deep samples writes past the allocation. Opening such a file through the default public Python API, OpenEXR.File(path), causes a heap buffer overflow during normal deep sample decode, leading to memory corruption and a crash. This issue is fixed in versions 3.3.13 and 3.4.14.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - OpenEXR is the reference implementation and specification for the EXR image file format, widely used in
    the motion picture industry. In versions 3.3.0 through 3.3.12 and 3.4.0 through 3.4.13, the PyOpenEXR
    Python bindings contain a heap out-of-bounds write triggered when reading a crafted deep scanline EXR
    file. When a deep file declares a literal channel named left alongside layer-prefixed RGB channels left.R,
    left.G, and left.B, the wrapper processes the literal left channel first and allocates a scalar deep
    sample array for it, then reuses that same array as the coalesced destination for the prefixed RGB group.
    The deep reader registers sample slices with an RGB stride (three lanes) into storage that was allocated
    with scalar shape, so decoding the deep samples writes past the allocation. Opening such a file through
    the default public Python API, OpenEXR.File(path), causes a heap buffer overflow during normal deep sample
    decode, leading to memory corruption and a crash. This issue is fixed in versions 3.3.13 and 3.4.14.
    (CVE-2026-68514)

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - OpenEXR is the reference implementation and specification for the EXR image file format, widely used in     the motion picture industry. In versions 3.3.0 through 3.3.12 and 3.4.0 through 3.4.13, the PyOpenEXR     Python bindings contain a heap out-of-bounds write triggered when reading a crafted deep scanline EXR     file. When a deep file declares a literal channel named left alongside layer-prefixed RGB channels left.R,     left.G, and left.B, the wrapper processes the literal left channel first and allocates a scalar deep     sample array for it, then reuses that same array as the coalesced destination for the prefixed RGB group.
    The deep reader registers sample slices with an RGB stride (three lanes) into storage that was allocated     with scalar shape, so decoding the deep samples writes past the allocation. Opening such a file through     the default public Python API, OpenEXR.File(path), causes a heap buffer overflow during normal deep sample     decode, leading to memory corruption and a crash. This issue is fixed in versions 3.3.13 and 3.4.14.
    (CVE-2026-68514)

Note that Nessus relies on the presence of the package as reported by the vendor.

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the 56449320-97c5-11f1-84d7-3c7c3fba4204 advisory.

    Cary Phillips reports:
    [The OpenEXR 3.4.14] release addresses the following security vulnerabilities:

Tenable has extracted the preceding description block directly from the FreeBSD security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Type	Severity
472889	Echo: openexr: security update to 3.1.13-2	Tenable Cloud Security	Echo Local Security Checks	Local	medium
472889	Echo: openexr: security update to 3.1.13-2	Tenable Self-Hosted Container Security	Echo Local Security Checks	Local	medium
340742	Linux Distros Unpatched Vulnerability : CVE-2026-68514	Nessus	Misc.	Local	medium
335504	FreeBSD : OpenEXR -- 3.4.14 fixes multiple vulnerabilities (56449320-97c5-11f1-84d7-3c7c3fba4204)	Nessus	FreeBSD Local Security Checks	Local	high

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CVE-2026-68514

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