CVE-2026-115942

High

Description

A misconfigured wildcard TLS certificate causes a stack read overflow. This issue does not affect any wildcard certificate issued to the RFC9525 standard - the fix only accepts certificates that comply to this standard. 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.

SeverityHigh

CVSS7.5

Exploit probability—

ProductApache Qpid Proton C

PublishedOct 29, 2026

First seenNov 4, 2026

Weakness typeCWE-125Out-of-bounds read

How to fix

Vendor advisories

lists.apache.org/thread.html/5z8x4c1939rxs5hod7q7gvgdmjd7p7pt

Affected products

Product	Affected versions	Fixed in
Apache Software Foundation Apache Qpid Proton C	v ≤ 0.40.0	—

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