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CVE-2026-114230— Apache Qpid Proton C: Potential authentication bypass: regular AMQP frames can be sent as SASL frames

Quick assessment

Affected
Apache Software Foundation Apache Qpid Proton C
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在分发 SASL 帧以对对等端进行身份验证时，Proton 会将那些声称是 SASL 帧的 AMQP 帧也一并分发。这会导致身份验证绕过漏洞。不过，由于此时不会设置用户名，其实际影响取决于应用程序如何处理该情况——而正常情况下，该情况意味着身份验证尚未完成。 此问题影响 Apache Qpid Proton C 0.40.0 及更早版本。 建议用户升级至 0.41.1 版本，该版本已修复此问题。

AI Predicted 7.4 Difficulty: Moderate
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I. Basic Information for CVE-2026-114230

Vulnerability Information
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Vulnerability Title
Apache Qpid Proton C: Potential authentication bypass: regular AMQP frames can be sent as SASL frames
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
使用基本弱点进行的认证绕过
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Apache Software Foundation Apache Qpid Proton C 0 ~ 0.40.0 -

II. Public POCs for CVE-2026-114230

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III. Intelligence Information for CVE-2026-114230

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Other References for CVE-2026-114230 (1)

Same Patch Batch · Apache Software Foundation · 2026-10-29 · 5 CVEs total

CVE-2026-71569 4.8 MEDIUM Apache Camel: Camel-A2A Push Notification Webhook Guard Accepts IPv6 Unique Local Addresse
CVE-2026-115942 Apache Qpid Proton C: Verifying non compliant TLS wildcard cert can cause stack buffer ove
CVE-2026-105042 Apache Qpid Proton C: Unbounded recursion in parsing AMQP message bodies can lead to crash
CVE-2026-105031 Apache Qpid Proton C: The OpenSSL TLS implementation adds a locally trusted certificate au

IV. Related Vulnerabilities

Same product: Apache Qpid Proton C
Same vendor: Apache Software Foundation
Same weakness: CWE-305