Project: pyjwt

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 1
Lines of code 1201
Lines covered 526
Code coverage 43.80%
Code coverage report Report link
Static reachability 1.50%
Fuzz Introspector report Report link (from 2025-12-31)

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
jwt.api_jwt.PyJWT.decode jwt.api_jwt 94 0.0%
jwt.jwks_client.PyJWKClient.get_signing_key_from_jwt jwt.jwks_client 94 0.0%
jwt.api_jwt.PyJWT.decode_complete jwt.api_jwt 88 0.0%
jwt.jwks_client.PyJWKClient.get_signing_key jwt.jwks_client 85 0.0%
jwt.jwks_client.PyJWKClient.get_signing_keys jwt.jwks_client 78 0.0%
jwt.jwks_client.PyJWKClient.get_jwk_set jwt.jwks_client 75 0.0%
jwt.api_jws.PyJWS.decode jwt.api_jws 69 0.0%
jwt.algorithms.RSAAlgorithm.from_jwk jwt.algorithms 67 0.0%
jwt.api_jws.PyJWS.decode_complete jwt.api_jws 66 0.0%
jwt.api_jwt.PyJWT._validate_claims jwt.api_jwt 65 0.0%