Language python
OSS-Fuzz project link
Project repository link
Build status: Fuzzers succeeding: Build log
Build status: Code coverage succeeding: Build log
Build status: Fuzz Introspector succeeding: Build log
Fuzzer count 2
Lines of code 8173
Lines covered 3162
Code coverage 38.69%
Code coverage report Report link
Static reachability 16.51%
Fuzz Introspector report Report link (from 2025-11-24)

Historical Progression

Functions of interest to fuzz

This section outlines functions that may be of interest to fuzz. They are based on ranking functions that have a lot of complexity but currently exhibit low code coverage. The complexity is calculated based on the function itself as well as the functions called by the given function, i.e. the tree of code that the function triggers.


This is only a minor amount of introspection information available for this project. Please consult the Fuzz Introspector report for more information, e.g. the introspection table of all functions in the target project available here.

Function name Function source file Accumulated cyclomatic complexity Code coverage
google.oauth2.id_token.fetch_id_token google.oauth2.id_token 875 0.0%
google.oauth2._id_token_async.fetch_id_token google.oauth2._id_token_async 809 0.0%
google.auth.credentials.CredentialsWithTrustBoundary.refresh google.auth.credentials 776 0.0%
...fuzz_jwt_roundtrip.TestOneInput ...fuzz_jwt_roundtrip 754 0.0%
google.oauth2._service_account_async.Credentials.refresh google.oauth2._service_account_async 728 0.0%
google.oauth2.service_account.Credentials._refresh_token google.oauth2.service_account 724 0.0%
google.oauth2._service_account_async.IDTokenCredentials.refresh google.oauth2._service_account_async 719 0.0%
google.auth.jwt.OnDemandCredentials.before_request google.auth.jwt 714 0.0%
google.auth.compute_engine.credentials.IDTokenCredentials.refresh google.auth.compute_engine.credentials 711 0.0%
google.oauth2.service_account.Credentials._make_authorization_grant_assertion google.oauth2.service_account 708 0.0%