Observing crash in ParseFromArray() in protoBuf function - EXC_BAD_ACCESS (code=1, address=0x0) on latest MacOS26

[pavankumar1696-ux]

What version of protobuf and what language are you using?
Version: v5.29.0
Language: C++
 
What operating system (Linux, Windows, ...) and version?
 MacOS26.0
 
What runtime / compiler are you using (e.g., python version or gcc version)
Clang (Apple clang version 17.0.0 (clang-1700.3.19.1)
 
What did you do?
Our internal app was working fine on older MacOS 15.7 and XCode 16.4, after updating to latest XCode 26 and MacOS 26, started observing crash.
 
Issue is observed  in parseFromArray protobuf function
#0        0x in 0x00000000 ()
#2        0x100a86fb0 in google::protobuf::internal::MergeFromImpl ()
 
We tried to use parseFromString, parseStream instead, but all are resutling in the same BAD_ACCESS crash. Can anyone help if they have observed something similar after upgrading to latest MacOS and pls suggest the workaround or fix that helped in fixing the issue?

[jguamie]

Can you try building everything from source (regenerate proto gencode, etc.) and see if this still crashes?

[pavankumar1696-ux]

hi @jguamie, with regenerated proto files also we are seeing the same crash.