CVE-2026-47183

Name
CVE-2026-47183
Description
Zeroconf is a pure Python implementation of multicast DNS service discovery. Prior to 0.149.6, DNSIncoming._log_exception_debug and the four QuietLogger exception-dedup methods stored an unbounded _seen_logs dictionary keyed by attacker-influenced IncomingDecodeError messages, retaining sys.exc_info() tracebacks whose frame locals kept raw packet self.data buffers and allowing unauthenticated hosts on the local link over UDP/5353 (224.0.0.251 / ff02::fb) to drive memory growth until mDNS-dependent features degrade or the process is OOM-killed. This issue is fixed in version 0.149.6.
NVD Severity
unknown
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
security-advisories@github.com https://github.com/python-zeroconf/python-zeroconf/commit/95561e28b24922358f1991e38e3a86d70d72dcec
security-advisories@github.com https://github.com/python-zeroconf/python-zeroconf/issues/1714
security-advisories@github.com https://github.com/python-zeroconf/python-zeroconf/pull/1717
security-advisories@github.com https://github.com/python-zeroconf/python-zeroconf/releases/tag/0.149.6
security-advisories@github.com https://github.com/python-zeroconf/python-zeroconf/security/advisories/GHSA-phvx-9mgw-67r5

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:paulsm:zeroconf:*:*:*:*:*:python:*:* py3-zeroconf >= None < 0.149.6

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
py3-zeroconf edge-community 0.147.2-r1 Achill Gilgenast <achill@achill.org> possibly vulnerable
py3-zeroconf edge-community 0.147.2-r0 Achill Gilgenast <achill@achill.org> possibly vulnerable
py3-zeroconf edge-community 0.147.0-r1 Achill Gilgenast <achill@achill.org> possibly vulnerable
py3-zeroconf edge-community 0.147.0-r0 fossdd <fossdd@pwned.life> possibly vulnerable
py3-zeroconf edge-community 0.146.5-r0 fossdd <fossdd@pwned.life> possibly vulnerable
py3-zeroconf edge-community 0.146.3-r0 fossdd <fossdd@pwned.life> possibly vulnerable
py3-zeroconf edge-community 0.144.1-r0 fossdd <fossdd@pwned.life> possibly vulnerable
py3-zeroconf edge-community 0.132.2-r0 Fabian Affolter <fabian@affolter-engineering.ch> possibly vulnerable
py3-zeroconf 3.24-community 0.147.2-r1 Achill Gilgenast <achill@achill.org> possibly vulnerable