This request object uses unsupported signing algorithm "EdDSA"

[taisph]

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Ory Network Project

No response

Describe the bug

Attempting to use the JWT authenticator results in an "This request object uses unsupported signing algorithm "EdDSA"." error, yet oathkeeper credentials generator has no issues generating using the EdDSA algorithm, eg. oathkeeper credentials generate --alg EdDSA

Reproducing the bug

1. Setup a JWT authenticator in config and add a rule using the jwt handler.

    authenticators:
      jwt:
        enabled: true
        config:
          jwks_urls:
            - http://localhost:4456/.well-known/jwks.json
          allowed_algorithms:
            - EdDSA

2. Use a JWT signed with the EdDSA algorithm as a bearer token with the /decisions endpoint.

Relevant log output

id=
rid=
error=The request was malformed or contained invalid parameters
reason=This request object uses unsupported signing algorithm "EdDSA".
details=map[]
debug=

github.com/ory/oathkeeper/credentials.(*VerifierDefault).Verify.func1
    /project/credentials/verifier_default.go:81
github.com/golang-jwt/jwt/v4.(*Parser).ParseWithClaims
    /go/pkg/mod/github.com/golang-jwt/jwt/[email protected]/parser.go:80
github.com/golang-jwt/jwt/v4.ParseWithClaims
    /go/pkg/mod/github.com/golang-jwt/jwt/[email protected]/token.go:108
github.com/ory/oathkeeper/credentials.(*VerifierDefault).Verify
    /project/credentials/verifier_default.go:42
github.com/ory/oathkeeper/pipeline/authn.(*AuthenticatorJWT).Authenticate
    /project/pipeline/authn/authenticator_jwt.go:107
github.com/ory/oathkeeper/proxy.(*requestHandler).HandleRequest
    /project/proxy/request_handler.go:205
github.com/ory/oathkeeper/api.(*DecisionHandler).decisions
    /project/api/decision.go:96
github.com/ory/oathkeeper/api.(*DecisionHandler).ServeHTTP
    /project/api/decision.go:50
github.com/urfave/negroni.middleware.ServeHTTP
    /go/pkg/mod/github.com/urfave/[email protected]/negroni.go:38
github.com/ory/oathkeeper/cmd/server.runAPI.func1.ContextualizedMiddleware.func3
    /go/pkg/mod/github.com/ory/[email protected]/corsx/middleware.go:28
github.com/urfave/negroni.HandlerFunc.ServeHTTP
    /go/pkg/mod/github.com/urfave/[email protected]/negroni.go:29
github.com/urfave/negroni.middleware.ServeHTTP
    /go/pkg/mod/github.com/urfave/[email protected]/negroni.go:38
github.com/ory/x/reqlog.(*Middleware).ServeHTTP
    /go/pkg/mod/github.com/ory/[email protected]/reqlog/middleware.go:142
github.com/urfave/negroni.middleware.ServeHTTP
    /go/pkg/mod/github.com/urfave/[email protected]/negroni.go:38
github.com/ory/oathkeeper/metrics.(*Middleware).ServeHTTP
    /project/metrics/middleware.go:103
github.com/urfave/negroni.middleware.ServeHTTP
    /go/pkg/mod/github.com/urfave/[email protected]/negroni.go:38
github.com/ory/x/metricsx.(*Service).ServeHTTP
    /go/pkg/mod/github.com/ory/[email protected]/metricsx/middleware.go:272
github.com/urfave/negroni.middleware.ServeHTTP
    /go/pkg/mod/github.com/urfave/[email protected]/negroni.go:38
github.com/urfave/negroni.(*Negroni).ServeHTTP
    /go/pkg/mod/github.com/urfave/[email protected]/negroni.go:96
go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp.(*middleware).serveHTTP
    /go/pkg/mod/go.opentelemetry.io/contrib/instrumentation/net/http/[email protected]/handler.go:217
go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp.NewMiddleware.func1.1
    /go/pkg/mod/go.opentelemetry.io/contrib/instrumentation/net/http/[email protected]/handler.go:81
net/http.HandlerFunc.ServeHTTP
    /usr/local/go/src/net/http/server.go:2136
net/http.serverHandler.ServeHTTP
    /usr/local/go/src/net/http/server.go:2938
net/http.(*conn).serve
    /usr/local/go/src/net/http/server.go:2009
runtime.goexit
    /usr/local/go/src/runtime/asm_amd64.s:1650

Relevant configuration

No response

Version

0.40.7

On which operating system are you observing this issue?

Linux

In which environment are you deploying?

Kubernetes

Additional Context

Might be related to #691.