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:...

RHEL 10 : openexr (RHSA-2026:39024)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:39024 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-2026:38498)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:38498 advisory. OpenEXR is an open-source high-dynamic-range floating-point image file format for high-quality image processing and storage. This document...

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...

AlmaLinux 10 : openexr (ALSA-2026:19146)

The remote AlmaLinux 10 host has packages installed that are affected by a vulnerability as referenced in the ALSA-2026:19146 advisory. OpenEXR: OpenEXR: Arbitrary code execution and information disclosure via crafted EXR file CVE-2026-34588 Tenable has extracted the preceding description block...

OpenEXR Out of Bounds Heap Read due to Bad Pointer Arithmetic in LossyDctDecoder_execute

SummaryThe 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. DetailsIn the LossyDctDecoderexecute function from src/lib/OpenEXRCore/internaldwadecoder.h...

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...

OpenEXR Out-Of-Memory via Unbounded File Header Values

SummaryThe 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-2026-1746 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...

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...

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-2026-727 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...

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...

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...

JLSEC-2026-645 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 the height and width are divisible by 8. If the height or width of the image is not divisible by 8, the copy loops at 0 and 1 will continue to write until the next multiple of 8. The buffer...

JLSEC-2026-644 When decoding an OpenEXR file that uses DWAA or DWAB compression, the specified raw length of...

When decoding an OpenEXR file that uses DWAA or DWAB compression, the specified raw length of run-length-encoded data is not checked when using it to calculate the output data. We read rlerawsize from the input file at 0, we decompress and decode into the buffer td-rlerawdata of size rlerawsize a...

Astra Linux – Vulnerability in openexr

OpenEXR provides the specification and reference implementation of the EXR file format, a image storage format used in the motion picture industry. From version 3.4.0 to before version 3.4.8, a properly crafted B44 or B44A EXR file could cause an out-of-bounds write in any application that decode...

Astra Linux – Vulnerability in openexr

OpenEXR provides the specification and reference implementation of the EXR file format, a image storage format for the motion picture industry. In CompositeDeepScanLine::readPixels, per-pixel totals are accumulated in vectors of unsigned integers, known as totalsizes. These totalsizes are wrapped...