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VulnerabilityPublished

CVE-2026-115942: A misconfigured wildcard TLS certificate causes a stack read overflow

Source GCVE Database

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Authoritative record:CVE-2026-115942· High

Not known to be exploited · fixed in 0.41.1 : patch Apache Qpid Proton C soon.

Data as of 29 Oct 2026, 13:47 UTC

Severity
High

Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD

Thin evidence

One scorer or none
Patch
Available – fixed in 0.41.1

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 29 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Apache Software FoundationApache Qpid Proton CAffected
  • <=0.40.0
Fixed in–

AI-suggested

Users should upgrade Apache Qpid Proton C to version 0.41.1 or later, where the issue is fixed by enforcing acceptance of only RFC9525-compliant wildcard TLS certificates. No other mitigation is indicated.

Description

A stack read overflow vulnerability exists in Apache Qpid Proton C versions through 0.40.0 due to a misconfigured wildcard TLS certificate. The flaw does not affect wildcard certificates compliant with the RFC9525 standard. The issue is resolved in version 0.41.1, which restricts accepted certificates to those compliant with RFC9525.

References

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