ETK-2026-1025Zero's internal tracking ID, independent of the CVE number.
waiting for further signalsZero needs more public information before it can validate it.description
dnspython versions before 2.9.0 can consume excessive CPU while decompressing names in crafted DNS wire messages. An attacker may degrade service or cause denial of service when an application processes untrusted DNS wire-form input.
mitigation
Upgrade dnspython to version 2.9.0 or later. Restrict or filter untrusted DNS wire-form messages until the update is deployed.
fixed in 2.9.0
outcome
No artifact: an exploit or check was attempted but could not be produced at this moment.
source signals
Public signals that triggered or updated the pipeline. These are inputs for the deltas above.
- 2026-10-09 00:13Zghsa: trigger signal, started the run
this entry in the feed
GET /api/v1/feed/ETK-2026-1025
{ "etk_id": "ETK-2026-1025", "cve_id": null, "display_id": "ETK-2026-1025", "ghsa_id": "GHSA-45c3-73f7-pv4m", "euvd_id": null, "status": "published", "anchor_state": "awaiting_cve", "title": "CPU denial of service in dnspython DNS name decompression", "summary": "dnspython versions before 2.9.0 can consume excessive CPU while decompressing names in crafted DNS wire messages. An attacker may degrade service or cause denial of service when an application processes untrusted DNS wire-form input.", "mitigation": "Upgrade dnspython to version 2.9.0 or later. Restrict or filter untrusted DNS wire-form messages until the update is deployed.", "vendor": "pip", "product": "pip:dnspython", "affected": [ { "affected_notes": [], "affected_ranges": [ "< 2.9.0" ], "ecosystem": "pip", "fixed_versions": [ "2.9.0" ], "package_name": "dnspython", "purl": "pkg:pypi/dnspython" } ], "cwes": [ 674 ], "cvss_score": 7.5, "cvss_src": "cna_vendor", "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "epss_score": null, "epss_percentile": null, "epss_asof": null, "automation": "deterministic", "check": false, "check_confidence_basis": null, "exploit": false, "pipeline_minutes": 9.195891616666668, "t0_at": null, "signals": { "trigger_signal": { "at": "2026-10-09T00:13:25+00:00", "days": -12.193083509837964, "is_lower_bound": true, "measured_at": "2026-10-21T04:51:27.437757+00:00", "url": "https://github.com/rthalley/dnspython/security/advisories/GHSA-45c3-73f7-pv4m" } } }
published 2026-10-09 01:50Z
last change 2026-10-21 04:45Z
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