CVE-2026-62385

MEDIUMPre-NVD 5.95.9—
EchelonGraph scoreHIGH confidence

Score 5.9 from GitHub Security Advisory (severity: HIGH) published 2026-08-22. a secondary CVSS source baseline 5.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this weekElevated
5.9EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.9Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

NLTK versions before 3.10.0 contain a path traversal vulnerability in FramenetCorpusReader and NKJPCorpusReader that allows attackers to parse XML files outside the corpus root by supplying unsafe selectors or poisoned index state. Attackers can exploit frame_by_name, doc, lu, and header methods with crafted parameters to read arbitrary XML files accessible to the application.

CVSS v3
5.9
EG Score
5.9(high)
EG Risk
43(Track)
EG Risk 43/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity59% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
21%
KEV
Not listed

Published

August 22, 2026

Last Modified

August 24, 2026

Advisory Details (2)

Auto-updated Aug 22, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

NLTK 3.9.4 Path Traversal via FrameNet and NKJP Readers | Advisories | VulnCheck

https://www.vulncheck.com/advisories/nltk-path-traversal-via-framenet-and-nkjp-readers
github Patch Available🟡 PoC Available

Stable FrameNet and NKJP readers parse outside-root XML in 3.9.4 · Advisory · nltk/nltk · GitHub

Affected: version 3.10.0, which includes the path-safety rejections seen in the release can

https://github.com/nltk/nltk/security/advisories/GHSA-568f-pv23-39p4

Vendor Advisories for CVE-2026-62385(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 12× in last 7d / 12× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-08-25 22:34 UTCEG score recompute
  2. 2026-08-25 22:34 UTCGHSA enrichment
  3. 2026-08-25 13:49 UTCEPSS rescore
  4. 2026-08-24 20:26 UTCEG score recompute
  5. 2026-08-24 20:26 UTCGHSA enrichment
  6. 2026-08-24 19:22 UTCEG score recompute
  7. 2026-08-24 19:22 UTCGHSA enrichment
  8. 2026-08-23 17:30 UTCEG score recompute
  9. 2026-08-23 17:30 UTCGHSA enrichment
  10. 2026-08-22 15:24 UTCEG score recompute
  11. 2026-08-22 14:26 UTCEG score recompute
  12. 2026-08-22 14:25 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-62385?
CVE-2026-62385 is a medium vulnerability published on August 22, 2026. NLTK versions before 3.10.0 contain a path traversal vulnerability in FramenetCorpusReader and NKJPCorpusReader that allows attackers to parse XML files outside the corpus root by supplying unsafe selectors or poisoned index state. Attackers can exploit framebyname, doc, lu, and header methods with…
When was CVE-2026-62385 disclosed?
CVE-2026-62385 was first published in the National Vulnerability Database on August 22, 2026, with the most recent update on August 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-62385 actively exploited?
CVE-2026-62385 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 78.9% of all scored CVEs.
What is the CVSS score of CVE-2026-62385?
CVE-2026-62385 has a CVSS v3 base score of 5.9 (NVD).
How do I remediate CVE-2026-62385?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-62385, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-62385

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