Paper/Archive/CVE-2026-105031

CVE-2026-105031

Apache Software Foundation Apache Qpid Proton C — Apache Qpid Proton C: The OpenSSL TLS implementation adds a locally trusted certificate authority to the existing trusted system trust anchors.

EPSS 0.1%CVSS 9.1

critical.is priorityof 100

CVSS 9.1 (ADP)9.1 / 10 × 3027.3 Not in CISA KEV+300.0 EPSS percentile 3.0.030 × 200.6 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource

Apache Qpid Proton C≤ 0.40.0–CNA

Scores by source

CISA ADP9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

advisorylists.apache.org/thread.html/lc10nrjt2dwcjjhrsgoyy5tqkntsnor4 refopenwall.com/lists/oss-security/2026/10/28/22