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CVE-2026-78682: nltk before 3.10.3 (exclusive), 0 to before 3.10.3
CVE-2026-78682. CVSS 3.1 base score 7.5 (HIGH, Vendor/CNA). EPSS 0.00435 (percentile 0.35643), scored 2026-10-06.
Affected technology
nltk · before 3.10.3 (exclusive)
nltk
nltk · 0 to before 3.10.3
nltk
Description’s affected range: before 3.10.3
Component: Not specified by the source
Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · No privileges required · No user interaction required
What an attacker can do
An attacker can supply a validated public URL that the proxy forwards to an internal loopback-only service, allowing disclosure of internal HTTP resources, loading of forged downloader indexes, and installation of attacker-chosen package content. Vendor/CNA’s CVSS 4.0 assessment (base score 8.7/10) rates confidentiality impact as high; integrity and availability impact as none.
- CWE
- CWE-918
- CCR priority
- 30.1 /100 (P4)
- CVSS 3.1
- 7.5 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N · Vendor/CNA
- EPSS
- 0.00435 · percentile 0.35745 · 2026-10-08
- KEV
- no
Provenance
- FIRST EPSS daily exploit-probability · Source record · observed 2026-10-08 17:36:22.845483+00:00 UTC
- NVD CVE API 2.0 · Source record · observed 2026-10-08 17:32:11.049884+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2026-78682.html