Duplicate Advisory: Unbounded CPU consumption in NLTK SteppingRecursiveDescentParser.parse() with ambiguous or self-embedding grammars
| Reporter | Title | Published | Views | Family All 10 |
|---|---|---|---|---|
 | CVE-2026-126303 | 13 Nov 202611:27 | – | circl |
 | CVE-2026-126303 | 13 Nov 202609:36 | – | cve |
 | CVE-2026-126303 NLTK before 3.10.4 Denial of Service via SteppingRecursiveDescentParser.parse() | 13 Nov 202609:36 | – | cvelist |
 | EUVD-2026-125218 | 13 Nov 202609:36 | – | euvd |
 | NLTK: Unbounded CPU consumption in SteppingRecursiveDescentParser.parse() with ambiguous or self-embedding grammars | 13 Nov 202621:02 | – | github |
 | CVE-2026-126303 | 13 Nov 202610:17 | – | nvd |
 | GHSA-8FX7-8JR8-84RV NLTK: Unbounded CPU consumption in SteppingRecursiveDescentParser.parse() with ambiguous or self-embedding grammars | 13 Nov 202621:02 | – | osv_ghsa |
 | PT-2026-146634 | 13 Nov 202600:00 | – | ptsecurity |
| PT-2026-147338 | 13 Nov 202600:00 | – | ptsecurity |
 | CVE-2026-126303: nltk: NLTK before 3.10.4 contains an uncontrolled resource consumption vulnerability in… | 13 Nov 202600:00 | – | rapid7 |
Data
Build on a solid foundation with Vulners data
We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data
Api
Power your application with Vulners API
The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access
App
Assess and manage vulnerabilities with Vulners tools
Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation
13 Nov 2026 20:57Current
6Medium risk
Vulners AI Score6
CVSS 3.17.5
CVSS 48.7
EPSS0.00558