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VulnerabilityPublished Updated

CVE-2026-114605: dnspython is a DNS toolkit for Python

Affects dnspythonSource GCVE Database

0
Authoritative record:CVE-2026-114605· High 7.5

Not known to be exploited · CVSS 7.5 High · fixed in 2.9.0 : patch dnspython soon.

Data as of 28 Oct 2026, 23:13 UTC

CVSS 3.1 base score
7.5High
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 2.9.0
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 22 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: 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 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Ubuntu 26.10dnspythonpkg:deb/ubuntu/dnspython?arch=source&distro=stonkingOther threatsAffected
  • =2.8.0-1ubuntu1
  • =2.8.0-3ubuntu1
  • =2.8.0-5
Fixed in–
Ubuntu 26.04 LTSdnspythonpkg:deb/ubuntu/dnspython?arch=source&distro=resoluteOther threatsAffected
  • =2.7.0-1ubuntu1
  • =2.7.0-1ubuntu2
  • =2.8.0-1ubuntu1
Fixed in–
Ubuntu 24.04 LTSdnspythonpkg:deb/ubuntu/dnspython?arch=source&distro=nobleOther threatsAffected
  • =2.4.1-1ubuntu2
  • =2.4.2-1ubuntu1
  • =2.6.1-1ubuntu1
Fixed in–
Ubuntu 22.04 LTSdnspythonpkg:deb/ubuntu/dnspython?arch=source&distro=jammyOther threatsAffected
  • =2.0.0+really1.16.0-2ubuntu2
  • =2.0.0+really1.16.0-2ubuntu3
  • =2.1.0-1ubuntu1
Fixed in–
Ubuntu 20.04 LTSdnspythonpkg:deb/ubuntu/dnspython?arch=source&distro=focalOther threatsAffected
  • =1.16.0-1
  • =1.16.0-1build1
  • =1.16.0-1ubuntu1
Fixed in–
Ubuntu 18.04 LTSdnspythonpkg:deb/ubuntu/dnspython?arch=source&distro=bionicOther threatsAffected
  • =1.15.0-1
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Upgrade dnspython to version 2.9.0 or later, where this vulnerability is fixed. No other mitigation is indicated.

Description

dnspython versions prior to 2.9.0 contain a vulnerability in the dns.name.from_wire_parser function, which follows attacker-controlled DNS compression pointer chains without a hop limit. This can allow a malicious DNS message to cause excessive pointer traversal during name decompression, resulting in high CPU usage, application degradation, or denial of service. The issue is fixed in version 2.9.0.

References

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