Vulnerability details
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.
CVSS 3.1
9.1Critical
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.1Critical | 3.1 | CISA ADP / Vulnrichment (CISA-ADP) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Apache Software Foundation | Apache Qpid Proton C | v ≤ 0.40.0 | CVEProject cvelistV5 (CNA) |
References and advisories
2
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Details
- Published
- 2026-10-29
- Last updated
- 2026-11-06
- State
- Published
- Assigner (CNA)
- apache
- Kolun priority
- 19 · Low
Exploit prediction (EPSS)
0.26%
Probability of exploitation in 30 days
19%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-295Improper certificate validation