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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-114230

Apache Qpid Proton C: Potential authentication bypass: regular AMQP frames can be sent as SASL frames

Description

When dispatching SASL frames to authenticate the peer, Proton will also dispatch AMQP frames if they claim to be SASL frames. This allows authentication bypass. However there will be no user name set so the effects depend on how the application deals with this condition - which otherwise means that authentication has not completed yet. This issue affects Apache Qpid Proton C: through 0.40.0. Users are recommended to upgrade to version 0.41.1, which fixes the issue.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Apache Software Foundation Apache Qpid Proton C

Default version status: unaffected

  • 0 to ≤ 0.40.0affected
pkg:software-id/apache.org/qpid-proton

References