CVE-2026-62385

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 69% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
Elevated
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: 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
7.5
EG Score
7.5(medium)
EG Risk
50(Track)
EG Risk 50/100SSVC: 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
Severity75% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
31%
KEV
Not listed

Published

August 22, 2026

Last Modified

August 31, 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.

Affected Packages

(4 across 4 ecosystems)
Debian:12(1)
PackageVulnerable rangeFixed inDependents
nltk3.10.0-1 ... 3.9.3-1 (9 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
nltk3.10.0-1 ... 3.9.3-1 (6 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
nltk3.9.1-2, 3.9.2-1, 3.9.3-13.10.0-1—
PyPI(1)
PackageVulnerable rangeFixed inDependents
nltk0.8 ... 3.9b1 (65 versions)3.10.0—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 72× 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. 2026-09-19 06:52 UTCEG score recompute
  2. 2026-09-18 19:28 UTCEPSS rescore
  3. 2026-09-18 05:07 UTCEG score recompute
  4. 2026-09-16 14:29 UTCEG score recompute
  5. 2026-09-16 14:08 UTCEPSS rescore
  6. 2026-09-16 05:15 UTCEPSS rescore
  7. 2026-09-15 12:43 UTCEG score recompute
  8. 2026-09-13 21:42 UTCEG score recompute
  9. 2026-09-12 19:59 UTCEG score recompute
  10. 2026-09-11 18:16 UTCEG score recompute
  11. 2026-09-11 14:53 UTCEPSS rescore
  12. 2026-09-11 09:37 UTCEPSS rescore
  13. 2026-09-10 16:32 UTCEG score recompute
  14. 2026-09-09 01:42 UTCEG score recompute
  15. 2026-09-08 22:01 UTCEPSS rescore
  16. 2026-09-08 07:11 UTCGHSA enrichment
  17. 2026-09-07 18:20 UTCEG score recompute
  18. 2026-09-07 18:20 UTCGHSA enrichment
  19. 2026-09-07 16:01 UTCEPSS rescore
  20. 2026-09-07 05:29 UTCGHSA enrichment
  21. 2026-09-06 16:37 UTCEG score recompute
  22. 2026-09-06 16:37 UTCGHSA enrichment
  23. 2026-09-06 13:47 UTCEPSS rescore
  24. 2026-09-06 03:46 UTCEG score recompute
  25. 2026-09-06 03:46 UTCGHSA enrichment
Show 47 more
  1. 2026-09-05 14:54 UTCGHSA enrichment
  2. 2026-09-05 02:01 UTCEG score recompute
  3. 2026-09-05 02:01 UTCGHSA enrichment
  4. 2026-09-04 13:10 UTCEG score recompute
  5. 2026-09-04 13:09 UTCGHSA enrichment
  6. 2026-09-04 05:07 UTCEPSS rescore
  7. 2026-09-04 00:19 UTCGHSA enrichment
  8. 2026-09-03 11:24 UTCGHSA enrichment
  9. 2026-09-02 22:30 UTCEG score recompute
  10. 2026-09-02 22:30 UTCGHSA enrichment
  11. 2026-09-02 14:12 UTCEPSS rescore
  12. 2026-09-02 09:38 UTCGHSA enrichment
  13. 2026-09-01 20:46 UTCEG score recompute
  14. 2026-09-01 20:46 UTCGHSA enrichment
  15. 2026-09-01 13:54 UTCEPSS rescore
  16. 2026-09-01 07:55 UTCEG score recompute
  17. 2026-09-01 07:55 UTCGHSA enrichment
  18. 2026-09-01 04:40 UTCEPSS rescore
  19. 2026-08-31 19:02 UTCEG score recompute▲ 1.60
  20. 2026-08-31 19:02 UTCGHSA enrichment
  21. 2026-08-31 19:00 UTCNVD updateCVSS v3 → 7.5 · severity → HIGH
  22. 2026-08-30 23:25 UTCEG score recompute
  23. 2026-08-30 23:25 UTCGHSA enrichment
  24. 2026-08-30 19:17 UTCEPSS rescore
  25. 2026-08-30 01:22 UTCEPSS rescore
  26. 2026-08-29 21:18 UTCEG score recompute
  27. 2026-08-29 21:18 UTCGHSA enrichment
  28. 2026-08-28 21:42 UTCEPSS rescore
  29. 2026-08-28 19:09 UTCGHSA enrichment
  30. 2026-08-28 02:47 UTCEG score recompute
  31. 2026-08-28 02:47 UTCGHSA enrichment
  32. 2026-08-27 14:25 UTCEPSS rescore
  33. 2026-08-27 00:41 UTCEG score recompute
  34. 2026-08-27 00:41 UTCGHSA enrichment
  35. 2026-08-26 14:46 UTCEPSS rescore
  36. 2026-08-25 22:34 UTCEG score recompute
  37. 2026-08-25 22:34 UTCGHSA enrichment
  38. 2026-08-25 13:49 UTCEPSS rescore
  39. 2026-08-24 20:26 UTCEG score recompute
  40. 2026-08-24 20:26 UTCGHSA enrichment
  41. 2026-08-24 19:22 UTCEG score recompute
  42. 2026-08-24 19:22 UTCGHSA enrichment
  43. 2026-08-23 17:30 UTCEG score recompute
  44. 2026-08-23 17:30 UTCGHSA enrichment
  45. 2026-08-22 15:24 UTCEG score recompute
  46. 2026-08-22 14:26 UTCEG score recompute
  47. 2026-08-22 14:25 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-62385?
CVE-2026-62385 is a high 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 31, 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 69.5% of all scored CVEs.
What is the CVSS score of CVE-2026-62385?
CVE-2026-62385 has a CVSS v3 base score of 7.5 (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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-62385

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