CVE-2026-59186

OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. In versions before 3.2.11, 3.3.0 through 3.3.12, and 3.4.0 through 3.4.13, a crafted tiled EXR can trigger a heap out-of-bounds write on 32-bit/ILP32 builds when read through the public TiledRgbaInputFile RGBA API. The file uses a small 40x40 dataWindow but a 65537x65537 tile size. On ILP32, the Array2D<Rgba> tile-conversion buffer size calculation overflows, allocates a much smaller heap buffer, and tile decode writes past that allocation. This issue is fixed in versions 3.2.11, 3.3.13, and 3.4.14.

OpenEXR is a high dynamic-range (HDR) image file format originally developed by Industrial Light &amp; Magic for use in computer imaging applications.

Security Fix(es):

OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. In versions 3.1.0 through 3.2.10, 3.3.0 through 3.3.12, and 3.4.0 through 3.4.13, an int32_t multiplication in OpenEXRCore's unpack_sample_table() can overflow while decoding a crafted deep tiled EXR file, producing an invalid pointer that leads to a read from an unmapped memory address and a crash. Because the overflow occurs in the standard decoding path (exr_decoding_run), any application that decodes deep tiled EXR files is affected. This issue is fixed in versions 3.2.11, 3.3.13, and 3.4.14.(CVE-2026-59183)

OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. Versions before 3.2.11, 3.3.0 through 3.3.12, and 3.4.0 through 3.4.13 allow a crafted EXR with a nonzero dataWindow.min to make TypedFlatImageChannel::row() return an invalid heap pointer, causing out-of-bounds or use-after-free writes. This occurs when an application writes rows through FlatHalfChannel::row(). Affected consumers are tools, converters, render pipeline components, or image-processing services that accept untrusted EXR files and use FlatHalfChannel::row() on loaded images. This issue is fixed in versions 3.2.11, 3.3.13, and 3.4.14.(CVE-2026-59184)

OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. In versions before 3.2.11, 3.3.0 through 3.3.12, and 3.4.0 through 3.4.13, a crafted tiled EXR can trigger a heap out-of-bounds write on 32-bit/ILP32 builds when read through the public TiledRgbaInputFile RGBA API. The file uses a small 40x40 dataWindow but a 65537x65537 tile size. On ILP32, the Array2D<Rgba> tile-conversion buffer size calculation overflows, allocates a much smaller heap buffer, and tile decode writes past that allocation. This issue is fixed in versions 3.2.11, 3.3.13, and 3.4.14.(CVE-2026-59186)

OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. In OpenEXRUtil versions 3.3.0 through 3.3.12 and 3.4.0 through 3.4.12, the documented TypedDeepImageChannel<T>::row() API can return an out-of-bounds pointer when a deep image has a non-zero dataWindow origin, resulting in a heap out-of-bounds read and crash, with potential information disclosure under a controlled heap layout. The flaw arises because ImfDeepImageChannel uses two conflicting coordinate models: at(x, y) uses absolute coordinates (with _base offset by dataWindow.min), while row(r) is documented as 0-based logical access. For a non-zero dataWindow.min, row(0) therefore points outside the _sampleListPointers allocation instead of at the first logical row. This issue is fixed in versions 3.3.13 and 3.4.13.(CVE-2026-59189)

OpenEXR is the reference implementation and specification for the EXR image file format, widely used in the motion picture industry. In versions through 3.2.10, 3.3.0 through 3.3.12, and 3.4.0 through 3.4.13, the OpenEXRUtil library returns an out-of-bounds pointer from the SampleCountChannel::row() API when a deep image has a non-zero dataWindow origin. The row() accessor is documented as 0-based and computes its address from an internal base that is offset for absolute pixel coordinates, so the two coordinate models conflict whenever dataWindow.min is non-zero. For a deep image whose data window has a large negative vertical origin, row(0) points far outside the allocated sample-count buffer. An application that opens an attacker-controlled deep EXR file and accesses sample counts through row() performs an out-of-bounds read, which can crash the process or, under a controlled heap layout, return adjacent heap memory as…

OpenEXR is a high dynamic-range (HDR) image file format developed by Industrial Light & Magic for use in computer imaging applications. This package contains libraries and sample applications for handling the format.

Security Fix(es):

• OpenEXR: OpenEXR: Out-of-bounds write vulnerability via crafted EXR files (CVE-2026-59184)

• OpenEXR: OpenEXR: Heap out-of-bounds write via crafted tiled EXR file (CVE-2026-59186)

• OpenEXR: OpenEXR: Information disclosure and denial of service due to out-of-bounds read (CVE-2026-59189)

• OpenEXR: OpenEXR: Heap out-of-bounds write in exrmultiview via crafted EXR files (CVE-2026-68515)

• OpenEXR: OpenEXR: Information disclosure and denial of service via out-of-bounds read (CVE-2026-59981)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. In versions before 3.2.11, 3.3.0 through 3.3.12, and 3.4.0 through 3.4.13, a crafted tiled EXR can trigger a heap out-of-bounds write on 32-bit/ILP32 builds when read through the public TiledRgbaInputFile RGBA API. The file uses a small 40x40 dataWindow but a 65537x65537 tile size. On ILP32, the Array2D<Rgba> tile-conversion buffer size calculation overflows, allocates a much smaller heap buffer, and tile decode writes past that allocation. This issue is fixed in versions 3.2.11, 3.3.13, and 3.4.14.

OpenEXR is a high dynamic-range (HDR) image file format developed by Industrial Light & Magic for use in computer imaging applications. This package contains libraries and sample applications for handling the format.

Security Fix(es):

• OpenEXR: OpenEXR: Out-of-bounds write vulnerability via crafted EXR files (CVE-2026-59184)
• OpenEXR: OpenEXR: Heap out-of-bounds write via crafted tiled EXR file (CVE-2026-59186)
• OpenEXR: OpenEXR: Information disclosure and denial of service due to out-of-bounds read (CVE-2026-59189)
• OpenEXR: OpenEXR: Heap out-of-bounds write in exrmultiview via crafted EXR files (CVE-2026-68515)
• OpenEXR: OpenEXR: Information disclosure and denial of service via out-of-bounds read (CVE-2026-59981)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. In versions before 3.2.11, 3.3.0 through 3.3.12, and 3.4.0 through 3.4.13, a crafted tiled EXR can trigger a heap out-of-bounds write on 32-bit/ILP32 builds when read through the public TiledRgbaInputFile RGBA API. The file uses a small 40x40 dataWindow but a 65537x65537 tile size. On ILP32, the Array2D<Rgba> tile-conversion buffer size calculation overflows, allocates a much smaller heap buffer, and tile decode writes past that allocation. This issue is fixed in versions 3.2.11, 3.3.13, and 3.4.14.

• CVE-2026-54920: validate the data window and pre-initialise every level pointer in OpenEXRUtil Image::resize(), so an overflowing level size no longer leaves clearLevels() deleting uninitialised ImageLevel pointers
• CVE-2026-55059: map the row index with dataWindow.min.y instead of min.x in SampleCountChannel::set(int, unsigned int[]) and bounds-check the per-pixel setter, so a valid row no longer writes before the sample-count buffer
• CVE-2026-55373: reject sample counts above 0x80000000 in roundListSizeUp(), so the unsigned shift loop can no longer wrap to zero and spin forever
• CVE-2026-59183: widen the chunk width, height and row index to int64_t in unpack_sample_table(), so a large deep tile no longer overflows the sample-table index arithmetic and reads unmapped memory
• CVE-2026-59184: index the TypedFlatImageChannel row() accessors from the compact _pixels array instead of the absolute-coordinate _base pointer, so writing rows of an image with a non-zero data window origin no longer writes outside the pixel buffer
• CVE-2026-59186: validate Array/Array2D dimensions and compute the Array2D element count in 64-bit arithmetic, so an oversized tile no longer under-allocates the Rgba conversion buffer on ILP32 builds
• CVE-2026-59189: index the TypedDeepImageChannel row() accessors from the compact _sampleListPointers array instead of the absolute-coordinate _base pointer, so reading rows of a deep image with a non-zero data window origin no longer reads outside the sample-list pointer buffer
• CVE-2026-59981: index SampleCountChannel::row() from the compact _numSamples array instead of the absolute-coordinate _base pointer, so row(0) stays inside the allocation for a deep image with a non-zero data window origin
• CVE-2026-59983: compute the deep sample-count table size in uint64_t and reject a truncating conversion in update_pack_unpack_ptrs(), so an ILP32 build no longer allocates a wrapped-to-zero table
• CVE-2026-59984: reject a scratch-buffer size that does not survive the conversion to size_t in internal_exr_undo_b44() and internal_exr_undo_b44a(), so B44/B44A decode no longer writes past a truncated ILP32 allocation
• CVE-2026-61555: return defaultViewName() instead of multiView[0] in viewFromChannelName(), so a crafted empty multiView attribute no longer indexes an empty vector

• CVE-2026-54920: validate the data window and pre-initialise every level pointer in OpenEXRUtil Image::resize(), so an overflowing level size no longer leaves clearLevels() deleting uninitialised ImageLevel pointers
• CVE-2026-55059: map the row index with dataWindow.min.y instead of min.x in SampleCountChannel::set(int, unsigned int[]) and bounds-check the per-pixel setter, so a valid row no longer writes before the sample-count buffer
• CVE-2026-55373: reject sample counts above 0x80000000 in roundListSizeUp(), so the unsigned shift loop can no longer wrap to zero and spin forever
• CVE-2026-59183: widen the chunk width, height and row index to int64_t in unpack_sample_table(), so a large deep tile no longer overflows the sample-table index arithmetic and reads unmapped memory
• CVE-2026-59184: index the TypedFlatImageChannel row() accessors from the compact _pixels array instead of the absolute-coordinate _base pointer, so writing rows of an image with a non-zero data window origin no longer writes outside the pixel buffer
• CVE-2026-59186: validate Array/Array2D dimensions and compute the Array2D element count in 64-bit arithmetic, so an oversized tile no longer under-allocates the Rgba conversion buffer on ILP32 builds
• CVE-2026-59189: index the TypedDeepImageChannel row() accessors from the compact _sampleListPointers array instead of the absolute-coordinate _base pointer, so reading rows of a deep image with a non-zero data window origin no longer reads outside the sample-list pointer buffer
• CVE-2026-59981: index SampleCountChannel::row() from the compact _numSamples array instead of the absolute-coordinate _base pointer, so row(0) stays inside the allocation for a deep image with a non-zero data window origin
• CVE-2026-59983: compute the deep sample-count table size in uint64_t and reject a truncating conversion in update_pack_unpack_ptrs(), so an ILP32 build no longer allocates a wrapped-to-zero table
• CVE-2026-59984: reject a scratch-buffer size that does not survive the conversion to size_t in internal_exr_undo_b44() and internal_exr_undo_b44a(), so B44/B44A decode no longer writes past a truncated ILP32 allocation
• CVE-2026-61555: return defaultViewName() instead of multiView[0] in viewFromChannelName(), so a crafted empty multiView attribute no longer indexes an empty vector

These are all security issues fixed in the libIex-3_4-33-3.4.14-1.1 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the python313-OpenEXR-3.4.16-1.1 package on the GA media of openSUSE Tumbleweed.

This update for openexr fixes the following issues:

• CVE-2026-59183: unmapped memory access leading to crash due to int32_t multiplication overflow in unpack_sample_table() when decoding a crafted deep tiled EXR file (bsc#1276428).
• CVE-2026-59184: out-of-bounds or use-after-free writes when processing a crafted EXR with a nonzero dataWindow.min (bsc#1276849).
• CVE-2026-59186: heap out-of-bounds write on 32-bit/ILP32 builds when a crafted tiled EXR is read through the public TiledRgbaInputFile RGBA API (bsc#1276850).
• CVE-2026-59189: heap out-of-bounds read when processing a deep image that has a non-zero dataWindow origin (bsc#1276855).
• CVE-2026-59981: heap out-of-bounds read when procesing a deep image that has a non-zero dataWindow origin (bsc#1276862).
• CVE-2026-59982: out-of-bounds pointer access when processing a crafted deep EXR that has a non-zero dataWindow origin (bsc#1276853).
• CVE-2026-59983: out-of-bounds read in ILP32 builds when processing a crafted uncompressed deep-tile EXR (bsc#1276856).
• CVE-2026-59984: out-of-bounds write in ILP32 builds when processing a crafted B44-compressed scanline EXR (bsc#1276857).
• CVE-2026-59985: out-of-bounds read in ILP32 builds when processing a crafted RLE-compressed EXR (bsc#1276858).
• CVE-2026-61555: undefined behavior when processing a crafted EXR with an empty multiView header attribute (bsc#1276859).
• CVE-2026-68515: heap out-of-bounds write in exrmultiview when combining two specially crafted, individually valid scanline EXR files whose union dataWindow is not aligned to one view's channel subsampling (bsc#1276848).

Root has patched CVE-2026-59186 in the openexr package for Root:Debian:11. Multiple fixed versions available.

Root has patched CVE-2026-59186 in the openexr package for Root:Debian:12. Multiple fixed versions available.

Root has patched CVE-2026-59186 in the openexr package for Root:Debian:13. Multiple fixed versions available.

This update for openexr fixes the following issues:

• CVE-2026-59183: unmapped memory access leading to crash due to int32_t multiplication overflow in unpack_sample_table() when decoding a crafted deep tiled EXR file (bsc#1276428).
• CVE-2026-59184: out-of-bounds or use-after-free writes when processing a crafted EXR with a nonzero dataWindow.min (bsc#1276849).
• CVE-2026-59186: heap out-of-bounds write on 32-bit/ILP32 builds when a crafted tiled EXR is read through the public TiledRgbaInputFile RGBA API (bsc#1276850).
• CVE-2026-59189: heap out-of-bounds read when processing a deep image that has a non-zero dataWindow origin (bsc#1276855).
• CVE-2026-59981: heap out-of-bounds read when procesing a deep image that has a non-zero dataWindow origin (bsc#1276862).
• CVE-2026-59982: out-of-bounds pointer access when processing a crafted deep EXR that has a non-zero dataWindow origin (bsc#1276853).
• CVE-2026-59983: out-of-bounds read in ILP32 builds when processing a crafted uncompressed deep-tile EXR (bsc#1276856).
• CVE-2026-59984: out-of-bounds write in ILP32 builds when processing a crafted B44-compressed scanline EXR (bsc#1276857).
• CVE-2026-59985: out-of-bounds read in ILP32 builds when processing a crafted RLE-compressed EXR (bsc#1276858).
• CVE-2026-61555: undefined behavior when processing a crafted EXR with an empty multiView header attribute (bsc#1276859).
• CVE-2026-68515: heap out-of-bounds write in exrmultiview when combining two specially crafted, individually valid scanline EXR files whose union dataWindow is not aligned to one view's channel subsampling (bsc#1276848).

This update for openexr fixes the following issues:

• CVE-2026-59184: invalid heap pointer, causing out-of-bounds or use-after-free writes (bsc#1276849).
• CVE-2026-59186: On ILP32, the Array2D<Rgba> tile-conversion buffer size calculation overflows, allocates a much smaller heap buffer, and tile decode writes past that allocation (bsc#1276850).
• CVE-2026-59189: API can return an out-of-bounds pointer when a deep image has a non-zero dataWindow origin, resulting in a heap out-of-bounds read and crash, with potential information disclosure under a controlled heap layout (bsc#1276855).
• CVE-2026-59981: an attacker-controlled deep EXR file can access sample counts through row() performs an out-of-bounds read, which can crash the process or, under a controlled heap layout, return adjacent heap memory as sample-count values (bsc#1276862).
• CVE-2026-59982: an out-of-bounds pointer from TypedDeepImageChannel::row() when a crafted deep EXR has a nonzero dataWindow origin (bsc#1276853).
• CVE-2026-61555: crashing occurs when Imf::GetChannelsInMultiPartFile() processes a crafted EXR with an empty multiView header attribute and Imf::viewFromChannelName() indexes the empty vector for a dotless channel name (bsc#1276859).
• CVE-2026-68515: The utility allocates sampled channel storage using a truncated union_width / xSampling, then reads the sampled input through a Slice based on the misaligned union window, producing a heap out-of-bounds write (bsc#1276848).

This update for openexr fixes the following issues:

• CVE-2026-59186: On ILP32, the Array2D<Rgba> tile-conversion buffer size calculation overflows, allocates a much smaller heap buffer, and tile decode writes past that allocation (bsc#1276850).
• CVE-2026-61555: crashing occurs when Imf::GetChannelsInMultiPartFile() processes a crafted EXR with an empty multiView header attribute and Imf::viewFromChannelName() indexes the empty vector for a dotless channel name (bsc#1276859).
• CVE-2026-68515: The utility allocates sampled channel storage using a truncated union_width / xSampling, then reads the sampled input through a Slice based on the misaligned union window, producing a heap out-of-bounds write (bsc#1276848).