Vulnerability Description
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 Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/rthalley/dnspython/commit/b485e460c266540a1a09ca6d8d1d7b685b1
- https://github.com/rthalley/dnspython/releases/tag/v2.9.0
- https://github.com/rthalley/dnspython/security/advisories/GHSA-45c3-73f7-pv4m
FAQ
What is CVE-2026-114605?
CVE-2026-114605 is a vulnerability with a CVSS score of 7.5 (HIGH). 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...
How severe is CVE-2026-114605?
CVE-2026-114605 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-114605?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.