Announcing 0.24.0 - #280
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Signed-off-by: Sam Barker <sam@quadrocket.co.uk>
k-wall
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Sep 2, 2026
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| **Why SASL Termination?** | ||
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| Filters that rely on client identity—such as custom authorization or dynamic routing—need to know *who* is making a request. However, challenge-response mechanisms like SCRAM generate unique per-server nonces, making passthrough inspection impossible. |
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This paragraph is incorrect, and describes the wrong thing.
Firstly, SASL Inspection does support SCRAM. The identity goes through the SCRAM mechanism in plain text, so SaslInspection can (and does) sniff it. io.kroxylicious.it.SaslInspectionIT#shouldAuthenticateWhenSameMechanism_SCRAM_SHA_256 proves it works.
Secondly, the need for SASL Termination is really routers with multiple upstreams. In this use case, SASL inspection doesn't really work:
- For SASL PLAIN/OAUTH, it works providing the password db or oauth configs are the same.
- For SCRAM, it falls flat on its face. There would be two server nonces.
There are use-cases for SASL Termination in a single upstream use-cases - where your client side SASL authn requirements differ from your server side's authn requirements. Say interfaces clients that use SASL with a Cluster that can only use TLS client auth.
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