What is CVE-2026-114605?

CVE-2026-114605 is a high-severity vulnerability in Rthalley Dnspython, classified under Uncontrolled Recursion. CVSS score: 7.5/10. Published 2026-10-22.

How severe is CVE-2026-114605?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Rthalley Dnspython

CVE-2026-114605

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.

Published 2026-10-22 · last modified 2026-10-22.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Rthalley Dnspython — versions < 2.9.0

Weakness classification (CWE)

CWE-674 — Uncontrolled Recursion

References

Frequently asked questions

What is CVE-2026-114605?: CVE-2026-114605 is a high-severity vulnerability in Rthalley Dnspython, classified under Uncontrolled Recursion. CVSS score: 7.5/10. Published 2026-10-22.
How severe is CVE-2026-114605?: High severity. CVSS v3 base score is 7.5 out of 10.