VulnSocial

CVE-2026-63312Patch(nltk / nltk)

LOWCVSS 8.7 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch nltk nltk systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

NLTK before 3.10.0 contains an arbitrary local file read vulnerability in StreamBackedCorpusView that bypasses pathsec.ENFORCE by calling builtins.open() directly instead of pathsec.open(). Attackers who control the fileid argument can read arbitrary local files regardless of the ENFORCE setting, including sensitive system files and application credentials.

nltk CVEsBack to dashboard
0.5/ 10 priority

Sources & remediation

Exploit / PoC references
Vendor / third-party advisories
Weakness type (CWE)
CWE-22

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • nltk

Threat summary

  • Patch or workaround signal is available
  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 2 signals
  • General: 1 classified signal
  • Peaked 1d ago at 1 mentions (2026-08-24); latest day: 1
  • 2 total mentions across 2 days

Affected systems

Vendors
nltk
Products
nltk

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-08-24: 1Mentions · 2026-09-08: 1Patch / Workaround · 2026-08-24: 1Technical Details · 2026-08-24: 1Technical Details · 2026-09-08: 108-2409-08
Signal classification2 categories
Patch
150.0%
General
150.0%
Referenced assets2 URLs
Classification over time
DateTotalLabels
2026-08-241
Patch1
2026-09-081
General1
Full discourse2 posts
  • DailyCVE@dailycve
    General

    🔴 NLTK (Natural Language Toolkit), Arbitrary Local File Read / Security Control Bypass, #CVE-2026-63312 (High) -DC-Sep2026-2220 https://dailycve.com/nltk-natural-language-toolkit-arbitrary-local-file-read-security-control-bypass-cve-2026-63312-high-dc-sep2026-2220/

    Post summary

    The post announces NLTK CVE‑2026‑63312 as an arbitrary local file read/security control bypass with high severity, but offers no PoC, exploit code, patch, or evidence of ongoing exploitation.

    0000033
    236 followersView on X
  • Hugo | DevOps | Cybersecurity 🇱🇻@HugoValters
    Patch

    CVE-2026-63312 - Arbitrary local file read in NLTK StreamBackedCorpusView bypasses pathsec. CVSS 7.5. Exposes sensitive system files. Update to NLTK 3.10.0+. #CVE #Python #infosec https://www.valtersit.com/cve/CVE-2026-63312 #CVE #CVEAlert #infosec #SysAdmin #cybersecurity #Linux #devsecops #devops #developer #sysadmin #100daysofcode #git #github #gitlab #redteam #blueteam #ethicalhacker #ethicalhacking #cybersecurityawareness #cybersecurity #cybersecuritynews #cybersecuritytips #python #hacker #linux #kali #ubuntu #debian #ukraine #spain #ireland #unitedkingdom #canada #finland #estonia #lithuania #ireland #hungary #denmark #norway #malta #mexico #switczerland #china #france #germany

    Post summary

    CVE-2026-63312 is an arbitrary local file read issue in NLTK, rated CVSS 7.5, that can expose sensitive files; upgrading to NLTK 3.10.0 or later mitigates the vulnerability.

    0000042
    1.0K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appnltknltk---

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