Fix "typ" header value in NimbusJwtEncoder-encoded JWT#18270
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jzheaux merged 3 commits intospring-projects:mainfrom Dec 15, 2025
Merged
Fix "typ" header value in NimbusJwtEncoder-encoded JWT#18270jzheaux merged 3 commits intospring-projects:mainfrom
jzheaux merged 3 commits intospring-projects:mainfrom
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This test encodes an JWT with NimbusJwtEncoder, and then decodes it with NimbusJwtDecoder. This test will fail when NimbusJwtEncoder emits a JWT with a wrong `typ' parameter in the header, as NimbusJwtDecoder validates the JWT with JwtTypeValidator by default. It may be beneficial for finding out other similiar bugs too. Signed-off-by: Ziqin Wang <ziqin@wangziqin.net>
Closes spring-projectsgh-18269 Signed-off-by: Ziqin Wang <ziqin@wangziqin.net>
Issue spring-projectsgh-18269 Signed-off-by: Josh Cummings <3627351+jzheaux@users.noreply.github.com>
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Thanks for the PR, @ziqin. Will you please open a separate ticket to discuss handling the JWT type and RFC 9068 tokens? |
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Thanks for the PR, @ziqin! This is now merged into |
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This PR fixes gh-18269 by passing a constant string
"JWT"toJwsHeader.Builder::type(String type).This PR doesn't generate RFC 9068 compliant JWT access tokens. Should we add a configuration method to
NimbusJwtEncoderandSecretKeyJwtEncoderBuilder/RsaKeyPairJwtEncoderBuilder/EcKeyPairJwtEncoderBuilderto support generating RFC 9068 JWT access tokens?I am not sure whether it affects compatibility with the existing support for RFC 9068, e.g., the
JwtValidators.AtJwtBuilder.