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CVE-2026-105031— Apache Qpid Proton C: The OpenSSL TLS implementation adds a locally trusted certificate authority to the existing trusted system trust anchors.

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.

在使用 OpenSSL TLS 实现时， 和 这两个 API 会将信任的证书锚点添加到默认的系统信任锚点中，而非替换它们。这可能导致意外地信任某些对等方证书。 可通过将应用程序的 环境变量设置为 来规避此问题。 该问题不影响 Win32 平台上的 SChannel TLS 实现。 受影响版本为 Apache Qpid Proton C：0.40.0 及之前的所有版本。 建议用户升级至 0.41.1 版本，该版本已修复此问题。

AI Predicted 5.9 Difficulty: Moderate
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I. Basic Information for CVE-2026-105031

Vulnerability Information
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Vulnerability Title
Apache Qpid Proton C: The OpenSSL TLS implementation adds a locally trusted certificate authority to the existing trusted system trust anchors.
Source: CVE Program / CVE List V5
Vulnerability Description
When using the OpenSSL TLS implementation, both the pn_ssl_domain_set_trusted_ca_db() & pn_tls_config_set_trusted_certs() APIs added to rather than replaced the default system trust anchors. Leading to potentially trusting unexpected peer certificates. This can be worked around by setting the SSL_CERT_FILE environment variable for the application to /dev/null. This issue does not affect the Win32 SChannel TLS implementation. 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
证书验证不恰当
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-2026-105031

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-105031

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Other References for CVE-2026-105031 (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-2026-114230 Apache Qpid Proton C: Potential authentication bypass: regular AMQP frames can be sent as
CVE-2026-105042 Apache Qpid Proton C: Unbounded recursion in parsing AMQP message bodies can lead to crash

IV. Related Vulnerabilities

Same product: Apache Qpid Proton C
Same vendor: Apache Software Foundation
Same weakness: CWE-295