CVE-2026-105042: Qpid proton · A message body that is deeply nested and decoded by pn_message_body() could overflow
Affects qpid-protonSource GCVE Database
Not known to be exploited · fixed in 0.41.1 : patch qpid-proton soon.
Data as of 5 Nov 2026, 12:35 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
Thin evidence
One scorer or none- Patch
- Available – fixed in 0.41.1
Exploitation evidence
Disclosed: evidence found.
CVE published 29 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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 5 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.10qpid-protonpkg:deb/ubuntu/qpid-proton?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSqpid-protonpkg:deb/ubuntu/qpid-proton?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSqpid-protonpkg:deb/ubuntu/qpid-proton?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu 22.04 LTSqpid-protonpkg:deb/ubuntu/qpid-proton?arch=source&distro=jammyOther threats | Affected
| Fixed in– |
Ubuntu 20.04 LTSqpid-protonpkg:deb/ubuntu/qpid-proton?arch=source&distro=focalOther threats | Affected
| Fixed in– |
Ubuntu 18.04 LTSqpid-protonpkg:deb/ubuntu/qpid-proton?arch=source&distro=bionicOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
Description
A message body that is deeply nested and decoded by pn_message_body() could overflow the stack and cause a crash. 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.
References
- ubuntu.com/security/CVE-2026-105042 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-105042 (opens in a new tab)
- openwall.com/lists/oss-security/2026/10/28/23 (opens in a new tab)
- issues.apache.org/jira/browse/PROTON-2976 (opens in a new tab)
- github.com/apache/qpid-proton/commit/d793f97e4a2d0f960eda32724a2e867236468337 (opens in a new tab)
- lists.apache.org/thread.html/7v54gx7o1ptxcz3h9549w3h9oxo3ns28 (opens in a new tab)
- openwall.com/lists/oss-security/2026/10/28/23 (opens in a new tab)