protocolbuffers/protobuf Issues

Stars: (71,223 stars)
Forks: (16,128 forks)
Indexed issues: (65 indexed issues)
open beginner issues: (56 open beginner issues)
Latest indexed: Aug 14, 2026
Last GitHub push: May 15, 2026
License: Other
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Dominant language: C++
PR merge metrics: (Avg merge 2d 11h) (185 merged PRs in 30d)
Beginner labels: help wanted

Issues

56 open indexed issues

Open

Protobuf `ParseFromArray` takes an `int size` where negative values are UB

bughelp wanted

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

protocolbuffers / protobuf · #28065 · Jun 17, 2026 · C++ · 71,223 stars

7 comments0 reactions0 assignees

Open

Protobuf library requires bash.exe / WSL, seemingly unnecessarily

bughelp wanted

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

protocolbuffers / protobuf · #27307 · May 9, 2026 · C++ · 71,223 stars

1 comment0 reactions0 assignees

Open

Recursion Depth Limit: Can reach depth 200 via 100 nested unknown groups beneath a depth=100 messageset item

bughelp wanted

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

protocolbuffers / protobuf · #26437 · Mar 18, 2026 · C++ · 71,223 stars

2 comments0 reactions0 assignees

Open

PHP: C extension has undocumented "append" function that has no package parity.

help wanted

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

protocolbuffers / protobuf · #26188 · Mar 3, 2026 · C++ · 71,223 stars

1 comment0 reactions0 assignees

Open

Multiple CWE's in protobuf after SAST analysis by PVS-Studio

help wanted

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

protocolbuffers / protobuf · #24882 · Dec 15, 2025 · C++ · 71,223 stars

1 comment0 reactions0 assignees

Open

pkg-config can not resolve dependencies

cmakehelp wanted

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

protocolbuffers / protobuf · #24610 · Nov 26, 2025 · C++ · 71,223 stars

2 comments0 reactions0 assignees

Open

PHP Extension - Segmentation fault when serialize() is called on a protobuf message

help wanted

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

protocolbuffers / protobuf · #24369 · Nov 8, 2025 · C++ · 71,223 stars

4 comments1 reaction0 assignees

Open

[Python] Potential memory leak

help wantedpython

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

protocolbuffers / protobuf · #24257 · Nov 3, 2025 · C++ · 71,223 stars

3 comments0 reactions0 assignees

Open

bug: CodedInputStream.newInstance(List) with an empty bytebuffer produces an error

help wantedjava

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

protocolbuffers / protobuf · #23957 · Oct 14, 2025 · C++ · 71,223 stars

3 comments0 reactions0 assignees

Open

[python] Message constructor argument enum typing

help wantedpython

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

protocolbuffers / protobuf · #23670 · Sep 27, 2025 · C++ · 71,223 stars

3 comments1 reaction1 assignee

Open

Warning in repeated_ptr_field.h about conversion from `size_t` to `int` causes compiler error

help wanted

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

protocolbuffers / protobuf · #23248 · Aug 27, 2025 · C++ · 71,223 stars

1 comment0 reactions1 assignee

Open

Check for wrapper types in C# code gen should be case insensitive

c#help wanted

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

protocolbuffers / protobuf · #22744 · Jul 23, 2025 · C++ · 71,223 stars

2 comments0 reactions0 assignees

Open

Allow configurable handling of invalid UTF-8 for better backward compatibility (C#)

help wanted

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

protocolbuffers / protobuf · #22288 · Jun 17, 2025 · C++ · 71,223 stars

1 comment0 reactions0 assignees

Open

Iterating a \Google\Protobuf\Internal\Message PHP object segfaults when using the protobuf extension

help wantedphp

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

protocolbuffers / protobuf · #22173 · Jun 10, 2025 · C++ · 71,223 stars

3 comments1 reaction0 assignees

Open

Python: Use multi-phase initialisation (PEP 489)

help wantedkeep openpython

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

protocolbuffers / protobuf · #21995 · May 28, 2025 · C++ · 71,223 stars

3 comments0 reactions1 assignee

Open

gRPC python type stubs not accurately reflecting runtime

help wanted

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

protocolbuffers / protobuf · #21691 · May 9, 2025 · C++ · 71,223 stars

22 comments0 reactions1 assignee

Open

Ruby class documentation barely exists

documentationhelp wantedruby

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

protocolbuffers / protobuf · #21092 · Apr 4, 2025 · C++ · 71,223 stars

6 comments1 reaction0 assignees

Open

BUG: pkg-config metadata is incorrect on windows

cmakehelp wantedwindows

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

protocolbuffers / protobuf · #20515 · Feb 28, 2025 · C++ · 71,223 stars

3 comments0 reactions1 assignee

Open

[MSVC] protobuf failed to run test on Windows

help wantedwindows

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

protocolbuffers / protobuf · #19584 · Dec 10, 2024 · C++ · 71,223 stars

3 comments0 reactions1 assignee

Open

-Wnull dereference warning, when using -Os, -DNDEBUG and -Wnull-dereference flags after upgrading to protobuf 27.4

c++help wanted

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

protocolbuffers / protobuf · #19291 · Nov 18, 2024 · C++ · 71,223 stars

1 comment0 reactions0 assignees

protocolbuffers/protobuf

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