Connect your agent
AdvisoriesCriticalCheck your lockfilePluginHow it worksPricing Connect your agent

Advisory record · GHSA-45c3-73f7-pv4m

dnspython dns.name.from_wire_parser() excessive CPU use

CVSS 7.5 HighEPSS 0.0047 · 40th percentile

Published by the GitHub Advisory Database at 27 Oct 2026, 15:37 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
dnspythonPyPI<2.9.02.9.0
Identifiers
GHSA-45c3-73f7-pv4m · CVE-2026-114605
Weakness (CWE)
CWE-674
Tags
Published
27 Oct 2026
Updated
27 Oct 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Dnspython versions before 2.9.0 are affected: a maliciously crafted DNS message can make dns.name.from_wire_parser() use excessive CPU during DNS name decompression. An attacker who can send DNS wire-form messages to an application that parses untrusted input with dnspython could degrade or deny service to it. Upgrade the PyPI dnspython package to version 2.9.0 or later, which contains the fix; the source lists no workarounds.

Written 31 Oct 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
7.5 High 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0047, the 40th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:07 UTC First seen by agentprime
  2. 31 Oct 2026, 14:07 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.