CVE catalog

CVE-2016-2166

qpid-proton: CVE-2016-2166

Severity: Medium · CVSS 6.5CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N
Published: Mar 9, 2016, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 4.27% · Oct 25, 2026

The (1) proton.reactor.Connector, (2) proton.reactor.Container, and (3) proton.utils.BlockingConnection classes in Apache Qpid Proton before 0.12.1 improperly use an unencrypted connection for an amqps URI scheme when SSL support is unavailable, which might allow man-in-the-middle attackers to obtain sensitive information or modify data via unspecified vectors.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	qpid-proton	sid	`0.37.0-10`	not affected
Debian	qpid-proton	forky	`0.37.0-10`	not affected
Debian	qpid-proton	trixie	`0.37.0-6`	not affected
Debian	qpid-proton	bookworm	`0.37.0-2`	not affected
Ubuntu	qpid-proton	16.04	`0.7-2`	vulnerable
Ubuntu	qpid-proton	16.04	`0.10-2`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	qpid-proton	source	sid	`Not affected`	unimportant	Not reported	Not reported
Debian	qpid-proton	source	forky	`Not affected`	unimportant	Not reported	Not reported
Debian	qpid-proton	source	trixie	`Not affected`	unimportant	Not reported	Not reported
Debian	qpid-proton	source	bookworm	`Not affected`	unimportant	Not reported	Not reported

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[libqpid-proton11]Not affected
Source package: [qpid-proton]
Details (2)
- 0.37.0-2+b1 · amd64 · bookworm
  Not affected
  dsa · qpid-proton · debian · bookworm
- 0.37.0-2+b1 · arm64 · bookworm
  Not affected
  dsa · qpid-proton · debian · bookworm
[libqpid-proton11-dev]Not affected
Source package: [qpid-proton]
Details (2)
- 0.37.0-2+b1 · amd64 · bookworm
  Not affected
  dsa · qpid-proton · debian · bookworm
- 0.37.0-2+b1 · arm64 · bookworm
  Not affected
  dsa · qpid-proton · debian · bookworm
[libqpid-proton11-dev-doc]Not affected
Source package: [qpid-proton]
Details (2)
- 0.37.0-2 · all · bookworm
  Not affected
  dsa · qpid-proton · debian · bookworm
- 0.37.0-2 · all · bookworm
  Not affected
  dsa · qpid-proton · debian · bookworm
[libqpid-proton11-dev-examples]Not affected
Source package: [qpid-proton]
Details (2)
- 0.37.0-2 · all · bookworm
  Not affected
  dsa · qpid-proton · debian · bookworm
- 0.37.0-2 · all · bookworm
  Not affected
  dsa · qpid-proton · debian · bookworm
[libqpid-proton-cpp12]Not affected
Source package: [qpid-proton]
Details (2)
- 0.37.0-2+b1 · amd64 · bookworm
  Not affected
  dsa · qpid-proton · debian · bookworm
- 0.37.0-2+b1 · arm64 · bookworm
  Not affected
  dsa · qpid-proton · debian · bookworm
[libqpid-proton-cpp12-dev]Not affected
Source package: [qpid-proton]
Details (2)
- 0.37.0-2+b1 · amd64 · bookworm
  Not affected
  dsa · qpid-proton · debian · bookworm
- 0.37.0-2+b1 · arm64 · bookworm
  Not affected
  dsa · qpid-proton · debian · bookworm
[libqpid-proton-cpp12-dev-doc]Not affected
Source package: [qpid-proton]
Details (2)
- 0.37.0-2 · all · bookworm
  Not affected
  dsa · qpid-proton · debian · bookworm
- 0.37.0-2 · all · bookworm
  Not affected
  dsa · qpid-proton · debian · bookworm
[python3-qpid-proton]Not affected
Source package: [qpid-proton]
Details (2)
- 0.37.0-2+b1 · amd64 · bookworm
  Not affected
  dsa · qpid-proton · debian · bookworm
- 0.37.0-2+b1 · arm64 · bookworm
  Not affected
  dsa · qpid-proton · debian · bookworm
[python-qpid-proton-doc]Not affected
Source package: [qpid-proton]
Details (2)
- 0.37.0-2 · all · bookworm
  Not affected
  dsa · qpid-proton · debian · bookworm
- 0.37.0-2 · all · bookworm
  Not affected
  dsa · qpid-proton · debian · bookworm

Observed: Oct 23, 2026, 5:20:04 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]