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Bug:[glTF] glTF2/GLB2 exporter emits invalid texture entries for KHR_texture_basisu

BugGlobal flag to mark a deviation from expected behaviourGlobal flag to mark a deviation from expected behaviour

Status: Open.

#6663 In assimp/assimp;

· shannon-alliance opened on May 21, 2026

Bug:[glTF] glTF2/GLB2 exporter missing mimeType field for KHR_texture_basisu images

BugGlobal flag to mark a deviation from expected behaviourGlobal flag to mark a deviation from expected behaviour

Status: Open.

#6662 In assimp/assimp;

· shannon-alliance opened on May 21, 2026

Bug: double precission is somehow lost but assimp is compiled with -DASSIMP_DOUBLE_PRECISION=ON

BugGlobal flag to mark a deviation from expected behaviourGlobal flag to mark a deviation from expected behaviour

Status: Open.

#6659 In assimp/assimp;

· docentYT opened on May 18, 2026

_⚠️ Potential issue_ | _🟠 Major_ | _⚡ Quick win_

Status: Open.

#6658 In assimp/assimp;

· kimkulling opened on May 18, 2026

_⚠️ Potential issue_ | _🟠 Major_ | _⚡ Quick win_

Status: Open.

#6657 In assimp/assimp;

· kimkulling opened on May 18, 2026

Bug: wrong parameter to AddProperty compiling USD

BugGlobal flag to mark a deviation from expected behaviourGlobal flag to mark a deviation from expected behaviour

BuildGlobal flag to mark build relates topicsGlobal flag to mark build relates topics

OS: MacOSProblems specific to MacOSProblems specific to MacOS

USDBugs related to the USD format.Bugs related to the USD format.

Status: Open.

Bug

#6653 In assimp/assimp;

· BrannonKing opened on May 13, 2026

glTF files fail to open on Little Endian (s390x)

EndiannessProblems related to big/little endian architectureProblems related to big/little endian architecture

glTF-CommonBugs/questions common to both glTF versions 1.0 and 2.0Bugs/questions common to both glTF versions 1.0 and 2.0

Status: Open.

Bug

#6650 In assimp/assimp;

· umlaeute opened on May 13, 2026

X Files - FVFData support

3D Format SupportFeature request for new 3D format importerFeature request for new 3D format importer

Feature-RequestGlobal flag to mark feature requestsGlobal flag to mark feature requests

XIssues related to the X formatIssues related to the X format

Status: Open.

Feature

#6648 In assimp/assimp;

· WaaghMan opened on May 12, 2026

I Need some help!

Blend shapesRelated to blend shapes/morph meshes (animation via changes to identical vertices via weights)Related to blend shapes/morph meshes (animation via changes to identical vertices via weights)

Char encodingBugs related to the character encodingBugs related to the character encoding

MaterialsBugs related to the material dataBugs related to the material data

QuestionGlobal flag to mark questions from usersGlobal flag to mark questions from users

Status: Open.

#6642 In assimp/assimp;

· HPirani opened on May 8, 2026

Bug: Heap-buffer-overflow in Assimp::FBX::FBXConverter::ConvertMeshMultiMaterial

BugGlobal flag to mark a deviation from expected behaviourGlobal flag to mark a deviation from expected behaviour

FBXBugs related to the FBX formatBugs related to the FBX format

FuzzerBugs found by a fuzzerBugs found by a fuzzer

MaterialsBugs related to the material dataBugs related to the material data

SanitizerBug/build issue discovered using sanitizer e.g. ASANBug/build issue discovered using sanitizer e.g. ASAN

Security RiskBugs that could potentially be security vulnerabilitiesBugs that could potentially be security vulnerabilities

Status: Open.

Bug

#6635 In assimp/assimp;

· TYGLS opened on May 6, 2026

Bug: Heap-buffer-overflow in glTF2Importer::ImportMeshes

BugGlobal flag to mark a deviation from expected behaviourGlobal flag to mark a deviation from expected behaviour

FuzzerBugs found by a fuzzerBugs found by a fuzzer

glTF2.0Bugs related to the glTF2.0 formatBugs related to the glTF2.0 format

SanitizerBug/build issue discovered using sanitizer e.g. ASANBug/build issue discovered using sanitizer e.g. ASAN

Security RiskBugs that could potentially be security vulnerabilitiesBugs that could potentially be security vulnerabilities

Status: Open.

Bug

#6634 In assimp/assimp;

· TYGLS opened on May 6, 2026

Bug: Heap-buffer-overflow in MDLImporter::ParseBoneTrafoKeys_3DGS_MDL7

BugGlobal flag to mark a deviation from expected behaviourGlobal flag to mark a deviation from expected behaviour

FuzzerBugs found by a fuzzerBugs found by a fuzzer

MDLBugs related to the MDL format.Bugs related to the MDL format.

SanitizerBug/build issue discovered using sanitizer e.g. ASANBug/build issue discovered using sanitizer e.g. ASAN

Security RiskBugs that could potentially be security vulnerabilitiesBugs that could potentially be security vulnerabilities

Status: Open.

Bug

#6633 In assimp/assimp;

· TYGLS opened on May 6, 2026