OpenEXR: integer overflow to OOB write in uncompress_b44_impl()

SummaryThe B44/B44A decoder in OpenEXR reconstructs row pointers into a scratch buffer using int. When the channel width nx is large enough, the product y nx overflows int, causing the row pointer to wrap before the start of the scratch buffer. Subsequent memcpy calls then write decoded pixel...

PYSEC-2026-2847 OpenEXR: integer overflow to OOB write in uncompress_b44_impl()

Summary The B44/B44A decoder in OpenEXR reconstructs row pointers into a scratch buffer using int. When the channel width nx is large enough, the product y nx overflows int, causing the row pointer to wrap before the start of the scratch buffer. Subsequent memcpy calls then write decoded pixel...

PYSEC-2026-2846 OpenEXR's CompositeDeepScanLine integer-overflow leads to heap OOB write

Summary Function: CompositeDeepScanLine::readPixels, reachable from high-level multipart deep read flows MultiPartInputFile + DeepScanLineInputPart + CompositeDeepScanLine. Vulnerable lines src/lib/OpenEXR/ImfCompositeDeepScanLine.cpp: - totalsizesptr += countsjptr; line 511 - overallsamplecount ...

OpenEXR's CompositeDeepScanLine integer-overflow leads to heap OOB write

SummaryFunction: CompositeDeepScanLine::readPixels, reachable from high-level multipart deep read flows MultiPartInputFile + DeepScanLineInputPart + CompositeDeepScanLine.Vulnerable lines src/lib/OpenEXR/ImfCompositeDeepScanLine.cpp:- totalsizesptr += countsjptr; line 511- overallsamplecount +=...

RHSA-2026:38499 Red Hat Security Advisory: openexr security update

Bulletin has no description...

Important: Red Hat Security Advisory: openexr security update

An update for openexr is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from t...

OpenEXR: OpenEXR: Information disclosure and denial of service via malformed EXR files

A flaw was found in OpenEXR. A remote attacker could exploit a vulnerability in the IDManifest::init function when processing specially crafted EXR files. The function attempts to reconstruct strings from a prefix-compressed representation. If a previous string exceeds 255 bytes, the subsequent...

OpenEXR: OpenEXR: Arbitrary code execution via integer overflow in image resizing

A flaw was found in OpenEXR, an image storage format library for the motion picture industry. An integer overflow vulnerability exists in the ImageChannel::resize function, which can be triggered when processing a specially crafted OpenEXR image file through the OpenEXRUtil public API. This can...

Important: Red Hat Security Advisory: openexr security update

An update for openexr is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from...

OpenEXR: OpenEXR: Information disclosure and denial of service via malformed EXR files

A flaw was found in OpenEXR. A remote attacker could exploit a vulnerability in the IDManifest::init function when processing specially crafted EXR files. The function attempts to reconstruct strings from a prefix-compressed representation. If a previous string exceeds 255 bytes, the subsequent...

OpenEXR: OpenEXR: Arbitrary code execution via integer overflow in image resizing

A flaw was found in OpenEXR, an image storage format library for the motion picture industry. An integer overflow vulnerability exists in the ImageChannel::resize function, which can be triggered when processing a specially crafted OpenEXR image file through the OpenEXRUtil public API. This can...

RHEL 10 : openexr (RHSA-2026:38499)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:38499 advisory. OpenEXR is an open-source high-dynamic-range floating-point image file format for high-quality image processing and storage. This document...

openexr security update

3.1.1-3.3 - fix CVE-2026-41142 - fix CVE-2026-42216...

RHEL 9 : openexr (RHSA-2026:39025)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:39025 advisory. OpenEXR is an open-source high-dynamic-range floating-point image file format for high-quality image processing and storage. This document...

PT-2026-59481

Summary While fuzzing openexr exrcheck fuzzer, Valgrind reports a conditional branch depending on uninitialized data inside generic unpack. This indicates a use of uninitialized memory CWE-457. The issue is reproducible with the current OSS-Fuzz harness and a single-file PoC. Details Environment:...

PT-2026-59482

Summary There is a use-after-free in PyObject StealAttrString of pyOpenEXR old.cpp. This bug was found with ZeroPath. Details The legacy adapter defines PyObject StealAttrString that calls PyObject GetAttrString to obtain a new reference, immediately decrefs it, and returns the pointer. Callers...

ALSA-2026:38498 Important: openexr security update

OpenEXR is an open-source high-dynamic-range floating-point image file format for high-quality image processing and storage. This document presents a brief overview of OpenEXR and explains concepts that are specific to this format. This package containes the binaries for OpenEXR. Security Fixes:...

RHEL 9 : openexr (RHSA-2026:39027)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:39027 advisory. OpenEXR is an open-source high-dynamic-range floating-point image file format for high-quality image processing and storage. This document...

RHEL 9 : openexr (RHSA-2026:39026)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:39026 advisory. OpenEXR is an open-source high-dynamic-range floating-point image file format for high-quality image processing and storage. This document...

PT-2026-59489

Summary A memory safety bug in the legacy OpenEXR Python adapter the deprecated OpenEXR.InputFile wrapper allow crashes and likely code execution when opening attacker-controlled EXR files or when passing crafted Python objects. Integer overflow and unchecked allocation in InputFile.channel and...