TI-2018-12286 Aliases CVE-2018-17187 GHSA-xvch-r4wf-h8w9

Improper certificate validation in Apache Qpid Proton-J

LOW 37CWE-295Published 2018-11-13 · Updated 2024-08-05

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: High
Impact type: Spoofing
Confidentiality · integrity · availability: High · High · None
Fix status: Partial Red Hat: 4 without a fix

Attack profile from CVSS 3.0 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-295.

Summary

The Apache Qpid Proton-J transport includes an optional wrapper layer to perform TLS, enabled by use of the 'transport.ssl(...)' methods. Unless a verification mode was explicitly configured, client and server modes previously defaulted as documented to not verifying a peer certificate, with options to configure this explicitly or select a certificate verification mode with or without hostname verification being performed. The latter hostname verifying mode was not implemented in Apache Qpid Proton-J versions 0.3 to 0.29.0, with attempts to use it resulting in an exception. This left only the option to verify the certificate is trusted, leaving such a client vulnerable to Man In The Middle (MITM) attack. Uses of the Proton-J protocol engine which do not utilise the optional transport TLS wrapper are not impacted, e.g. usage within Qpid JMS. Uses of Proton-J utilising the optional transport TLS wrapper layer that wish to enable hostname verification must be upgraded to version 0.30.0 or later and utilise the VerifyMode#VERIFY_PEER_NAME configuration, which is now the default for client mode usage unless configured otherwise.

Why it matters now

EPSS 0.02539 85th percentileScored 2026-11-07

Fix Partial org.apache.qpid:proton-j (Maven): 0.30.0Red Hat: 4 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Apache	Apache Qpid Proton-J	Apache Qpid Proton-J 0.3 to 0.29.0	—	No fix listed	CNA
—	org.apache.qpid:proton-j (Maven)	0.3 to before 0.30.0	0.30.0	Patch available	GHSA-xvch-r4wf-h8w9

Apache Qpid Proton-J VendorApache Affected Apache Qpid Proton-J 0.3 to 0.29.0 Fixed in — No fix listed CNA
org.apache.qpid:proton-j (Maven) Vendor— Affected 0.3 to before 0.30.0 Fixed in 0.30.0 Patch available GHSA-xvch-r4wf-h8w9

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:apache:qpid_proton-j::::::::	0.3 – 0.29.0	Vulnerable	Apache

cpe:2.3:a:apache:qpid_proton-j:*:*:*:*:*:*:*:* Versions 0.3 – 0.29.0 Vulnerable ·Apache

Remediation

Fix · GHSA-xvch-r4wf-h8w9 org.apache.qpid:proton-j (Maven) Fixed in 0.30.0 Advisory →

Vendor assessments

Red Hat

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

Product	Status	Plan or fix
Red Hat Enterprise MRG 3	Affected	No fix planned: Will not fix
Red Hat Fuse 7	Affected	No fix planned: Will not fix
Red Hat JBoss A-MQ 6	Affected	No fix planned: Out of support scope
Red Hat JBoss Fuse 6	Affected	No fix planned: Out of support scope

Not affected: 1 product

Red Hat OpenShift Application Runtimes

Timeline

2026-10-02 Threatist record created from CVE-2018-17187
2026-10-03 Alias added: GHSA-xvch-r4wf-h8w9

References

Advisory 5

Other 1

https://github.com/apache/qpid-proton-j/commit/0cb8ca03cec42120dcfc434561592d89a89a805e

TI-2026-47091 Apache Qpid Proton-J: Unbounded type nesting can lead to pre-authentication stackoverflow CVSS 3.1HIGH 7.5
TI-2026-47090 Apache Qpid Proton-J: Type size/count handling can lead to excessive allocation pre-authentication CVSS 3.1HIGH 7.5
TI-2026-47085 Apache Qpid Proton-J: Unbounded symbol value caching can lead to pre-authentication resource exhaustion CVSS 3.1HIGH 7.5
TI-2026-47094 Apache Qpid Proton-J: Unable to govern the maximum number of transfer frames per incoming delivery CVSS 3.1MEDIUM 6.5
TI-2026-47093 Apache Qpid Proton-J: Unbounded disposition range handling can lead to denial of service CVSS 3.1MEDIUM 6.5
TI-2026-47092 Apache Qpid Proton-J: Incoming session flow control window can be exceeded CVSS 3.1MEDIUM 6.5

Sources

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