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

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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...

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:...

ALSA-2026:38499 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:...

MiracleLinux 9 : openexr-3.1.1-3.el9_8.2 (AXSA:2026-1224:04)

The remote MiracleLinux 9 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2026-1224:04 advisory. OpenEXR: OpenEXR: Arbitrary code execution and information disclosure via crafted EXR file CVE-2026-34588 Tenable has extracted the preceding description blo...

PYSEC-2026-1749 OpenEXR Out-Of-Memory via Unbounded File Header Values

Summary The OpenEXR file format defines many information about the final image inside of the file header, such as the size of data/display window. The application trusts the value of dataWindow size provided in the header of the input file, and performs computations based on this value. This may...

PYSEC-2026-1748 OpenEXR ScanLineProcess::run_fill NULL Pointer Write In "reduceMemory" Mode

Summary When reading a deep scanline image with a large sample count in reduceMemory mode, it is possible to crash a target application with a NULL pointer dereference in a write operation. Details In the ScanLineProcess::runfill function, implemented in...

PYSEC-2026-1747 OpenEXR Heap-Based Buffer Overflow in Deep Scanline Parsing via Forged Unpacked Size

Summary The OpenEXRCore code is vulnerable to a heap-based buffer overflow during a write operation when decompressing ZIPS-packed deep scan-line EXR files with a maliciously forged chunk header. Details When parsing STORAGEDEEPSCANLINE chunks from an EXR file, the following code from...

PYSEC-2026-1746 OpenEXR Out of Bounds Heap Read due to Bad Pointer Arithmetic in LossyDctDecoder_execute

Summary The OpenEXRCore code is vulnerable to a heap-based buffer overflow during a read operation due to bad pointer math when decompressing DWAA-packed scan-line EXR files with a maliciously forged chunk. Details In the LossyDctDecoderexecute function from...

OpenEXR invalid read

In OpenEXR 2.2.0, an invalid read of size 1 in the getBits function in ImfHuf.cpp could cause the application to crash...

PYSEC-2026-728 OpenEXR invalid write

In OpenEXR 2.2.0, an invalid write of size 8 in the storeSSE function in ImfOptimizedPixelReading.h could cause the application to crash or execute arbitrary code...

PYSEC-2026-727 OpenEXR invalid read

In OpenEXR 2.2.0, an invalid read of size 1 in the getBits function in ImfHuf.cpp could cause the application to crash...

JLSEC-2026-646 When decoding an OpenEXR file that uses DWAA or DWAB compression, there's an implicit assumption...

When decoding an OpenEXR file that uses DWAA or DWAB compression, there's an implicit assumption that all image channels have the same pixel type and size, and that if there are four channels, the first four are "B", "G", "R" and "A". The channel parsing code can be found in decodeheader. The...