Description
Environment:
Onfido React Native SDK: 15.5.0
Onfido iOS SDK: 32.8.0
React Native Application
iOS devices (exact device/OS versions can be provided if needed)
Issue Summary:
We are experiencing a native iOS crash within the Onfido SDK during document capture. The crash appears to occur when the document auto-capture flow times out.
Crash Details:
The main thread crashes in:
DocumentCaptureViewController.autoCaptureTimedOut()
Top of stack:
0 Onfido
DocumentCaptureViewController.autoCaptureTimedOut()
1 Onfido
closure invocation
2 libdispatch.dylib
_dispatch_call_block_and_release
Relevant Background Thread:
com.onfido.queue.image.processing
CoreGraphics
CGDataProviderRetainBytePtr
CGDataProviderDirectGetBytesAtPositionInternal
CGContextDrawImage
Onfido
UIImage.buffer()
CoreMLProcessor.process()
BoundingBoxMLProcessor.process()
DocumentFrameProcessor.process()
Observed Behavior:
Crash occurs during document capture.
The crash appears around the auto-capture timeout path.
Stack trace shows image processing running on com.onfido.queue.image.processing while the timeout callback is executing on the main thread.
Crash is occurring entirely inside the native Onfido SDK; no application code is present in the crashing call stack.
Expected Behavior:
The SDK should safely handle auto-capture timeout and image-processing cleanup without causing an application crash.
Questions:
Is this a known issue in Onfido iOS SDK 32.8.0?
Has this been fixed in a newer iOS SDK release?
Are there any recommended mitigations or configuration changes to avoid this crash?
Can you confirm whether this may be related to document auto-capture timeout interacting with image-processing threads?
Steps to reproduce
open Onfido
React Native Version
15.1.0
Affected Platforms
Runtime - iOS
Output of npx @react-native-community/cli info
System:
OS: macOS 15.6.1
CPU: (12) arm64 Apple M4 Pro
Memory: 144.73 MB / 24.00 GB
Shell:
version: "5.9"
path: /bin/zsh
Binaries:
Node:
version: 22.19.0
path: /usr/local/bin/node
Yarn: Not Found
npm:
version: 10.9.3
path: /usr/local/bin/npm
Watchman: Not Found
Managers:
CocoaPods:
version: 1.16.2
path: /Users/raj.kadam/.rbenv/shims/pod
SDKs:
iOS SDK:
Platforms:
- DriverKit 25.2
- iOS 26.2
- macOS 26.2
- tvOS 26.2
- visionOS 26.2
- watchOS 26.2
Android SDK: Not Found
IDEs:
Android Studio: 2025.1 AI-251.26094.121.2513.14007798
Xcode:
version: 26.2/17C52
path: /usr/bin/xcodebuild
Languages:
Java:
version: 17.0.11
path: /usr/bin/javac
Ruby:
version: 3.3.2
path: /Users/raj.kadam/.rbenv/shims/ruby
npmPackages:
"@react-native-community/cli":
installed: 20.1.3
wanted: ^20.0.2
react:
installed: 19.1.0
wanted: 19.1.0
react-native:
installed: 0.81.5
wanted: 0.81.5
react-native-macos: Not Found
npmGlobalPackages:
"*react-native*": Not Found
Android:
hermesEnabled: true
newArchEnabled: true
iOS:
hermesEnabled: true
newArchEnabled: true
Stacktrace or Logs
Crashed: com.apple.main-thread
0 Onfido 0x12bda4 $s6Onfido29DocumentCaptureViewControllerC04autoC8TimedOutyyFyyScMYccfU_ + 436
1 Onfido 0x237f0 $sIegh_IeyBh_TR + 28
2 libdispatch.dylib 0x19a8 _dispatch_call_block_and_release + 32
3 libdispatch.dylib 0x1b1e4 _dispatch_client_callout + 16
4 libdispatch.dylib 0x38e10 _dispatch_main_queue_drain.cold.6 + 832
5 libdispatch.dylib 0x10964 _dispatch_main_queue_drain + 176
6 libdispatch.dylib 0x108a4 _dispatch_main_queue_callback_4CF + 44
7 CoreFoundation 0xa2030 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 16
8 CoreFoundation 0x2f604 __CFRunLoopRun + 1944
9 CoreFoundation 0x2e54c _CFRunLoopRunSpecificWithOptions + 532
10 GraphicsServices 0x1498 GSEventRunModal + 120
11 UIKitCore 0x121244 -[UIApplication _run] + 796
12 UIKitCore 0x8c158 UIApplicationMain + 332
13 TorFX 0x538c main + 7 (AppDelegate.swift:7)
14 ??? 0x182e61c1c (Missing)
com.apple.uikit.eventfetch-thread
0 libsystem_kernel.dylib 0xcd4 mach_msg2_trap + 8
1 libsystem_kernel.dylib 0x430c mach_msg2_internal + 76
2 libsystem_kernel.dylib 0x422c mach_msg_overwrite + 424
3 libsystem_kernel.dylib 0x4078 mach_msg + 24
4 CoreFoundation 0x65344 __CFRunLoopServiceMachPort + 160
5 CoreFoundation 0x2f310 __CFRunLoopRun + 1188
6 CoreFoundation 0x2e54c _CFRunLoopRunSpecificWithOptions + 532
7 Foundation 0xacf0 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 212
8 Foundation 0xabd8 -[NSRunLoop(NSRunLoop) runUntilDate:] + 64
9 UIKitCore 0xe6a7c -[UIEventFetcher threadMain] + 420
10 Foundation 0x8e824 __NSThread__start__ + 732
11 libsystem_pthread.dylib 0x4438 _pthread_start + 136
12 libsystem_pthread.dylib 0x8cc thread_start + 8
com.google.firebase.crashlytics.MachExceptionServer
0 TorFX 0x3d0774 FIRCLSProcessRecordAllThreads + 392 (FIRCLSProcess.c:392)
1 TorFX 0x3d0b80 FIRCLSProcessRecordAllThreads + 423 (FIRCLSProcess.c:423)
2 TorFX 0x3c8870 FIRCLSHandler + 39 (FIRCLSHandler.m:39)
3 TorFX 0x3cb3b0 FIRCLSMachExceptionServer + 525 (FIRCLSMachException.c:525)
4 libsystem_pthread.dylib 0x4438 _pthread_start + 136
5 libsystem_pthread.dylib 0x8cc thread_start + 8
com.facebook.react.runtime.JavaScript
0 libsystem_kernel.dylib 0xcd4 mach_msg2_trap + 8
1 libsystem_kernel.dylib 0x430c mach_msg2_internal + 76
2 libsystem_kernel.dylib 0x422c mach_msg_overwrite + 424
3 libsystem_kernel.dylib 0x4078 mach_msg + 24
4 CoreFoundation 0x65344 __CFRunLoopServiceMachPort + 160
5 CoreFoundation 0x2f310 __CFRunLoopRun + 1188
6 CoreFoundation 0x2e54c _CFRunLoopRunSpecificWithOptions + 532
7 React 0x2a0f14 +[RCTJSThreadManager runRunLoop] + 252
8 Foundation 0x8e824 __NSThread__start__ + 732
9 libsystem_pthread.dylib 0x4438 _pthread_start + 136
10 libsystem_pthread.dylib 0x8cc thread_start + 8
hades
0 libsystem_kernel.dylib 0x65e8 __psynch_cvwait + 8
1 libsystem_pthread.dylib 0x2b48 _pthread_cond_wait + 980
2 libc++.1.dylib 0xcbcc std::__1::condition_variable::wait(std::__1::unique_lock<std::__1::mutex>&) + 32
3 hermes 0xcf9c4 hermes::vm::HadesGC::Executor::worker() + 116
4 hermes 0xcf92c void* std::__1::__thread_proxy[abi:nn180100]<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct>>, hermes::vm::HadesGC::Executor::Executor()::'lambda'()>>(void*) + 44
5 libsystem_pthread.dylib 0x4438 _pthread_start + 136
6 libsystem_pthread.dylib 0x8cc thread_start + 8
Log work queue
0 libsystem_kernel.dylib 0xc50 semaphore_wait_trap + 8
1 WebKit 0x127c804 <redacted> + 48
2 JavaScriptCore 0xef9b4 WTF::Thread::entryPoint(WTF::Thread::NewThreadContext*) + 356
3 JavaScriptCore 0xf316c WTF::wtfThreadEntryPoint(void*) + 16
4 libsystem_pthread.dylib 0x4438 _pthread_start + 136
5 libsystem_pthread.dylib 0x8cc thread_start + 8
hades
0 libsystem_kernel.dylib 0x65e8 __psynch_cvwait + 8
1 libsystem_pthread.dylib 0x2b48 _pthread_cond_wait + 980
2 libc++.1.dylib 0xcbcc std::__1::condition_variable::wait(std::__1::unique_lock<std::__1::mutex>&) + 32
3 hermes 0xcf9c4 hermes::vm::HadesGC::Executor::worker() + 116
4 hermes 0xcf92c void* std::__1::__thread_proxy[abi:nn180100]<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct>>, hermes::vm::HadesGC::Executor::Executor()::'lambda'()>>(void*) + 44
5 libsystem_pthread.dylib 0x4438 _pthread_start + 136
6 libsystem_pthread.dylib 0x8cc thread_start + 8
Thread
0 libsystem_kernel.dylib 0x65e8 __psynch_cvwait + 8
1 libsystem_pthread.dylib 0x2b74 _pthread_cond_wait + 1024
2 Foundation 0x13c0b0 -[NSCondition waitUntilDate:] + 132
3 TorFX 0x124f60 BatchWorker.main() + 108 (BatchSpanProcessor.swift:108)
4 TorFX 0x124f90 @objc BatchWorker.main() + 1020956 (<compiler-generated>:1020956)
5 Foundation 0x8e824 __NSThread__start__ + 732
6 libsystem_pthread.dylib 0x4438 _pthread_start + 136
7 libsystem_pthread.dylib 0x8cc thread_start + 8
com.apple.NSURLConnectionLoader
0 libsystem_kernel.dylib 0xcd4 mach_msg2_trap + 8
1 libsystem_kernel.dylib 0x430c mach_msg2_internal + 76
2 libsystem_kernel.dylib 0x422c mach_msg_overwrite + 424
3 libsystem_kernel.dylib 0x4078 mach_msg + 24
4 CoreFoundation 0x65344 __CFRunLoopServiceMachPort + 160
5 CoreFoundation 0x2f310 __CFRunLoopRun + 1188
6 CoreFoundation 0x2e54c _CFRunLoopRunSpecificWithOptions + 532
7 CFNetwork 0x91b54 +[__CFN_CoreSchedulingSetRunnable _run:] + 416
8 Foundation 0x8e824 __NSThread__start__ + 732
9 libsystem_pthread.dylib 0x4438 _pthread_start + 136
10 libsystem_pthread.dylib 0x8cc thread_start + 8
caulk::deferred_logger
0 libsystem_kernel.dylib 0xc50 semaphore_wait_trap + 8
1 caulk 0x3c6c caulk::semaphore::timed_wait(double) + 224
2 caulk 0x3cb8 caulk::concurrent::details::worker_thread::run() + 32
3 caulk 0x7f54 void* caulk::thread_proxy<std::__1::tuple<caulk::thread::attributes, void (caulk::concurrent::details::worker_thread::*)(), std::__1::tuple<caulk::concurrent::details::worker_thread*>>>(void*) + 96
4 libsystem_pthread.dylib 0x4438 _pthread_start + 136
5 libsystem_pthread.dylib 0x8cc thread_start + 8
caulk.messenger.shared:high
0 libsystem_kernel.dylib 0xc50 semaphore_wait_trap + 8
1 caulk 0x3c6c caulk::semaphore::timed_wait(double) + 224
2 caulk 0x3cb8 caulk::concurrent::details::worker_thread::run() + 32
3 caulk 0x7f54 void* caulk::thread_proxy<std::__1::tuple<caulk::thread::attributes, void (caulk::concurrent::details::worker_thread::*)(), std::__1::tuple<caulk::concurrent::details::worker_thread*>>>(void*) + 96
4 libsystem_pthread.dylib 0x4438 _pthread_start + 136
5 libsystem_pthread.dylib 0x8cc thread_start + 8
ANEServicesThread
0 libsystem_kernel.dylib 0xcd4 mach_msg2_trap + 8
1 libsystem_kernel.dylib 0x430c mach_msg2_internal + 76
2 libsystem_kernel.dylib 0x422c mach_msg_overwrite + 424
3 libsystem_kernel.dylib 0x4078 mach_msg + 24
4 CoreFoundation 0x65344 __CFRunLoopServiceMachPort + 160
5 CoreFoundation 0x2f310 __CFRunLoopRun + 1188
6 CoreFoundation 0x2e54c _CFRunLoopRunSpecificWithOptions + 532
7 CoreFoundation 0xded64 CFRunLoopRun + 64
8 ANEServices 0x238f0 ANE::ANEServicesThreadStart(ANE::ANEServicesThreadParams*) + 152
9 libsystem_pthread.dylib 0x4438 _pthread_start + 136
10 libsystem_pthread.dylib 0x8cc thread_start + 8
Thread
0 libsystem_pthread.dylib 0x8b8 start_wqthread + 8141244598
ANEServicesThread
0 libsystem_kernel.dylib 0xcd4 mach_msg2_trap + 8
1 libsystem_kernel.dylib 0x430c mach_msg2_internal + 76
2 libsystem_kernel.dylib 0x422c mach_msg_overwrite + 424
3 libsystem_kernel.dylib 0x4078 mach_msg + 24
4 CoreFoundation 0x65344 __CFRunLoopServiceMachPort + 160
5 CoreFoundation 0x2f310 __CFRunLoopRun + 1188
6 CoreFoundation 0x2e54c _CFRunLoopRunSpecificWithOptions + 532
7 CoreFoundation 0xded64 CFRunLoopRun + 64
8 ANEServices 0x238f0 ANE::ANEServicesThreadStart(ANE::ANEServicesThreadParams*) + 152
9 libsystem_pthread.dylib 0x4438 _pthread_start + 136
10 libsystem_pthread.dylib 0x8cc thread_start + 8
Thread
0 libsystem_kernel.dylib 0xa80 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x13fc _pthread_wqthread + 368
2 libsystem_pthread.dylib 0x8c0 start_wqthread + 8
Thread
0 libsystem_kernel.dylib 0xa80 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x13fc _pthread_wqthread + 368
2 libsystem_pthread.dylib 0x8c0 start_wqthread + 8
Thread
0 libsystem_kernel.dylib 0xa80 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x13fc _pthread_wqthread + 368
2 libsystem_pthread.dylib 0x8c0 start_wqthread + 8
Thread
0 libsystem_kernel.dylib 0xa80 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x13fc _pthread_wqthread + 368
2 libsystem_pthread.dylib 0x8c0 start_wqthread + 8
JavaScriptCore libpas scavenger
0 libsystem_kernel.dylib 0x65e8 __psynch_cvwait + 8
1 libsystem_pthread.dylib 0x2b48 _pthread_cond_wait + 980
2 JavaScriptCore 0x18cfc10 scavenger_thread_main + 1632
3 libsystem_pthread.dylib 0x4438 _pthread_start + 136
4 libsystem_pthread.dylib 0x8cc thread_start + 8
com.onfido.queue.image.processing
0 libsystem_pthread.dylib 0xf30 _pthread_mutex_unlock_init_slow + 20
1 CoreGraphics 0x5838 CGDataProviderRetainBytePtr + 104
2 CoreGraphics 0x302e8 CGDataProviderDirectGetBytesAtPositionInternal + 76
3 CoreGraphics 0x3236c provider_for_destination_get_bytes_at_position_inner + 488
4 CoreGraphics 0x303ec CGDataProviderDirectGetBytesAtPositionInternal + 336
5 CoreGraphics 0x301d8 get_chunks_direct + 220
6 CoreGraphics 0x32f38 img_raw_read + 1088
7 CoreGraphics 0xaa9c0 img_interpolate_read + 600
8 CoreGraphics 0x2ee9c img_data_lock + 7964
9 CoreGraphics 0x2887c CGSImageDataLock + 1168
10 CoreGraphics 0x28024 ripc_AcquireRIPImageData + 840
11 CoreGraphics 0x27450 ripc_DrawImage + 756
12 CoreGraphics 0x25c7c CGContextDrawImageWithOptions + 1092
13 CoreGraphics 0x25778 CGContextDrawImage + 556
14 UIKitCore 0x3eecf4 -[UIImage _drawInContext:rect:layout:scale:applyContentsTransform:] + 724
15 UIKitCore 0x3ee964 -[UIImage drawInRect:blendMode:alpha:] + 480
16 Onfido 0x3a3508 $sSo7UIImageC13Onfido_CommonE6bufferSo11CVBufferRefaSgyF + 804
17 Onfido 0x3b01ac $s22Onfido_DocumentCapture15CoreMLProcessorC7processyAC6OutputVSo7UIImageCKF + 236
18 Onfido 0x3a9db0 $s22Onfido_DocumentCapture22BoundingBoxMLProcessorC7processyAA0dE6OutputVAA5Frame_pKF + 288
19 Onfido 0x3aa4b0 $s22Onfido_DocumentCapture22BoundingBoxMLProcessorCAA9ProcessorA2aDP7processy6OutputQz5InputQzKFTW + 20
20 Onfido 0x3b7170 $s22Onfido_DocumentCapture0B14FrameValidatorC7process33_4A643866920CB9355E50D79EF8A723C1LLyAA11Validatable_pAA0D0_p_SStF + 356
21 Onfido 0x3b6a4c $s22Onfido_DocumentCapture0B14FrameValidatorC8validateys6ResultOySDySSAA11Validatable_pG7outputs_SDySSAA010ValidationG0OG7resultstAA0bdJ5ErrorOGAA0D0_pF + 836
22 Onfido 0x3b7604 $s22Onfido_DocumentCapture0B14FrameValidatorCAA0bD10ValidatingA2aDP8validateys6ResultOySDySSAA11Validatable_pG7outputs_SDySSAA010ValidationH0OG7resultstAA0bdK5ErrorOGAA0D0_pFTW + 20
23 Onfido 0x1363b0 $s6Onfido22DocumentFrameProcessorC7processyyAA0C0VF + 148
24 Onfido 0x128bec $s6Onfido29DocumentCaptureViewControllerC13didReceiveNew5frameyAA5FrameV_tF + 48
25 Onfido 0x8c840 $s6Onfido27CameraCaptureViewControllerC09loadPhotocD0yyFyAA5FrameVcfU_ + 140
26 Onfido 0x9c170 $s6Onfido15CameraLayerViewC13captureOutput_03didF04fromySo09AVCaptureF0C_So17CMSampleBufferRefaSo0I10ConnectionCtFTf4nndn_n + 312
27 Onfido 0x986f0 $s6Onfido15CameraLayerViewC13captureOutput_03didF04fromySo09AVCaptureF0C_So17CMSampleBufferRefaSo0I10ConnectionCtFTo + 92
28 AVFCapture 0x89528 -[AVCaptureVideoDataOutput _processSampleBuffer:] + 300
29 AVFCapture 0x8925c __47-[AVCaptureVideoDataOutput _updateRemoteQueue:]_block_invoke + 88
30 CMCapture 0x185c08 __FigRemoteOperationReceiverCreateMessageReceiver_block_invoke + 104
31 CMCapture 0x53b6a0 __rqReceiverSetSource_block_invoke + 260
32 libdispatch.dylib 0x1b1e4 _dispatch_client_callout + 16
33 libdispatch.dylib 0x6148 _dispatch_continuation_pop + 596
34 libdispatch.dylib 0x18ee4 _dispatch_source_latch_and_call + 392
35 libdispatch.dylib 0x17bb8 _dispatch_source_invoke + 844
36 libdispatch.dylib 0x9e18 _dispatch_lane_serial_drain + 332
37 libdispatch.dylib 0xaaac _dispatch_lane_invoke + 392
38 libdispatch.dylib 0x14dac _dispatch_root_queue_drain_deferred_wlh + 284
39 libdispatch.dylib 0x146ac _dispatch_workloop_worker_thread + 720
40 libsystem_pthread.dylib 0x13b0 _pthread_wqthread + 292
41 libsystem_pthread.dylib 0x8c0 start_wqthread + 8
Thread
0 libsystem_kernel.dylib 0xa80 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x13fc _pthread_wqthread + 368
2 libsystem_pthread.dylib 0x8c0 start_wqthread + 8
Thread
0 libsystem_kernel.dylib 0xa80 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x13fc _pthread_wqthread + 368
2 libsystem_pthread.dylib 0x8c0 start_wqthread + 8
com.apple.coremedia.sharedRootQueue.47
0 libsystem_kernel.dylib 0xc68 semaphore_timedwait_trap + 8
1 libdispatch.dylib 0x367d8 _dispatch_sema4_timedwait + 64
2 libdispatch.dylib 0x3a68 _dispatch_semaphore_wait_slow + 76
3 libdispatch.dylib 0x136fc _dispatch_worker_thread + 324
4 libsystem_pthread.dylib 0x4438 _pthread_start + 136
5 libsystem_pthread.dylib 0x8cc thread_start + 8
MANDATORY Reproducer
https://github.com/react-native-community/reproducer-react-native/tree/main/ReproducerApp
Screenshots and Videos
No response
Description
Environment:
Onfido React Native SDK: 15.5.0
Onfido iOS SDK: 32.8.0
React Native Application
iOS devices (exact device/OS versions can be provided if needed)
Issue Summary:
We are experiencing a native iOS crash within the Onfido SDK during document capture. The crash appears to occur when the document auto-capture flow times out.
Crash Details:
The main thread crashes in:
DocumentCaptureViewController.autoCaptureTimedOut()
Top of stack:
0 Onfido
DocumentCaptureViewController.autoCaptureTimedOut()
1 Onfido
closure invocation
2 libdispatch.dylib
_dispatch_call_block_and_release
Relevant Background Thread:
com.onfido.queue.image.processing
CoreGraphics
CGDataProviderRetainBytePtr
CGDataProviderDirectGetBytesAtPositionInternal
CGContextDrawImage
Onfido
UIImage.buffer()
CoreMLProcessor.process()
BoundingBoxMLProcessor.process()
DocumentFrameProcessor.process()
Observed Behavior:
Crash occurs during document capture.
The crash appears around the auto-capture timeout path.
Stack trace shows image processing running on com.onfido.queue.image.processing while the timeout callback is executing on the main thread.
Crash is occurring entirely inside the native Onfido SDK; no application code is present in the crashing call stack.
Expected Behavior:
The SDK should safely handle auto-capture timeout and image-processing cleanup without causing an application crash.
Questions:
Is this a known issue in Onfido iOS SDK 32.8.0?
Has this been fixed in a newer iOS SDK release?
Are there any recommended mitigations or configuration changes to avoid this crash?
Can you confirm whether this may be related to document auto-capture timeout interacting with image-processing threads?
Steps to reproduce
open Onfido
React Native Version
15.1.0
Affected Platforms
Runtime - iOS
Output of
npx @react-native-community/cli infoStacktrace or Logs
MANDATORY Reproducer
https://github.com/react-native-community/reproducer-react-native/tree/main/ReproducerApp
Screenshots and Videos
No response