High 7.5Published Oct 22, 2026

CVE-2026-114605dnspython dns.name.from_wire_parser() excessive CPU use

Updated under an hour ago (Oct 28, 2026, 4:00 AM ET)

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It affects rthalley dnspython. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.34%, higher than 27% of scored CVEs.

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Every CVE for rthalley dnspython

Exploited in the last 30 days

dnspython is a DNS toolkit for Python. Prior to 2.9.0, dns.name.from_wire_parser follows attacker-controlled DNS compression pointer chains without a hop limit. A malicious DNS wire-format message can force excessive pointer traversal during name decompression, causing high CPU use, application degradation, or denial of service in applications that process untrusted DNS messages. This issue is fixed in version 2.9.0.

CVSS: 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-674
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.34% (percentile 27)
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Oct 22, 2026
First seen by InfoSec Signals: Oct 22, 2026

Affected products

Affected products

rthalley dnspython rthalley:dnspython (from the name)	before 2.9.0	CNA record

References

References

https://github.com/rthalley/dnspython/security/advisories/GHSA-45c3-73f7-pv4m	x-refsource-confirm
https://github.com/rthalley/dnspython/commit/b485e460c266540a1a09ca6d8d1d7b685b1d3023	x-refsource-misc
https://github.com/rthalley/dnspython/releases/tag/v2.9.0	x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.