CVE-2026-105031: Apache Qpid Proton C: The OpenSSL TLS implementation adds a locally trusted certificate authority to the existing trusted system trust anchors.
When using the OpenSSL TLS implementation, both the pnssldomainsettrustedcadb() & pntlsconfigsettrustedcerts() 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 SSLCERTFILE 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 Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Apache Qpid Proton Cto a version that resolves this vulnerability.Fixed in 0.41.1 - Configuration
Set the SSL_CERT_FILE environment variable for the application to /dev/null as a workaround.
Apache Qpid Proton C OpenSSL TLS implementation SSL_CERT_FILE = /dev/null