Read the docs
TI-2026-82339 Aliases CVE-2026-105031GHSA-75pq-3xrq-9pc6

Apache Qpid Proton C OpenSSL TLS trusts unexpected peer certificates

Priority MEDIUM 47CWE-295Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Spoofing
Confidentiality · integrity · availability
High · High · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-295.

Summary

Apache Software Foundation Apache Qpid Proton C through 0.40.0 is affected. With the OpenSSL TLS implementation, the pn_ssl_domain_set_trusted_ca_db() and pn_tls_config_set_trusted_certs() APIs add trusted certificate authorities to the default system trust anchors instead of replacing them, which is improper certificate validation (CWE-295). A remote unauthenticated attacker can present a peer certificate that the application wrongly trusts, with high impact to confidentiality and integrity. The Win32 SChannel TLS implementation is not affected.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00269 19th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ApacheApache Qpid Proton Cup to 0.40.0—No fix listedCNA
  • Apache Qpid Proton C VendorApache Affected up to 0.40.0 Fixed in — No fix listed CNA

Remediation

Upgrade Apache Qpid Proton C to version 0.41.1, which fixes the issue. Red Hat lists Red Hat AMQ Clients, Red Hat OpenStack Platform 13 (Queens), Red Hat OpenStack Platform 16.2, Red Hat OpenStack Platform 17.1 and Red Hat Service Interconnect 2 as affected without a fix and with no plan available.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat AMQ ClientsAffectedNo fix yet
Red Hat OpenStack Platform 13 (Queens)AffectedNo fix yet
Red Hat OpenStack Platform 16.2AffectedNo fix yet
Red Hat OpenStack Platform 17.1AffectedNo fix yet
Red Hat Service Interconnect 2AffectedNo fix yet

Timeline

  1. 2026-10-29 Threatist record created from CVE-2026-105031
  2. 2026-10-29 Alias added: GHSA-75pq-3xrq-9pc6
  3. 2026-11-04 Affected versions changed · Red Hat
  4. 2026-11-04 CVSS score added · Red Hat
  5. 2026-11-05 CVSS score added · CISA ADP
  6. 2026-11-05 CISA SSVC decision points changed
  7. 2026-11-05 Priority changed: LOW → MEDIUM

References

Advisory 1

  • TI-2025-18529 Apache Tomcat: Potential RCE and/or information disclosure and/or information corruption with partial PUT KEVCVSS 3.1CRITICAL 10.0
  • TI-2024-30292 Apache OFBiz: Confused controller-view authorization logic (forced browsing) KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-26062 Apache OFBiz: Unauthenticated endpoint could allow execution of screen rendering code KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-21190 Apache OFBiz: Path traversal leading to RCE KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-18186 Apache HugeGraph-Server: Command execution in gremlin KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-25106 Deserialization of untrusted data in Apache ActiveMQ KEVCVSS 3.1CRITICAL 10.0
See all 4053 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences