Riskcovery

CVE-2026-114230

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

State
Published
Severity
Not scored
Published
Oct 29, 2026
Updated
Oct 29, 2026
Reserved
Oct 21, 2026

Read the record on cve.org

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.

Scores

The record has no CVSS score.

Weaknesses

  • CWE-305 Authentication bypass by primary weakness

Affected Products

ProductVersions
Apache Qpid Proton CApache Software Foundation
  • 0.40.0 and earlierAffected

References

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