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% (34th percentile of EPSS-scored CVEs). 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: 0.4%CVSS: 7.5Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

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
7.5HIGHmedium confidence
EG Risk
50
EG Risk 50/100CISA SSVC

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%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.4%
EPSS %ILE
34th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

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
githubMentions a patch (unverified)🟡 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 rangeFix by version rangeDependents
nltk3.10.0-1 ... 3.9.3-1 (9 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
nltk3.10.0-1 ... 3.9.3-1 (6 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
nltk3.9.1-2, 3.9.2-1, 3.9.3-1
  • every version up to 3.10.0-1: fixed in 3.10.0-1
—
PyPI(1)
PackageVulnerable rangeFix by version rangeDependents
nltk0.8 ... 3.9b1 (65 versions)
  • every version up to 3.10.0: fixed in 3.10.0
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 46× 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.

Showing the most recent 100 of 106 total refreshes for this CVE.

  1. 2026-10-10 16:36 UTCEG score recompute
  2. 2026-10-09 20:07 UTCEPSS rescore
  3. 2026-10-09 05:33 UTCEG score recompute
  4. 2026-10-08 17:13 UTCEPSS rescore
  5. 2026-10-08 04:42 UTCEG score recompute
  6. 2026-10-07 23:48 UTCEPSS rescore
  7. 2026-10-06 16:48 UTCEG score recompute
  8. 2026-10-06 15:18 UTCEPSS rescore
  9. 2026-10-06 03:01 UTCEG score recompute
  10. 2026-10-05 17:43 UTCEPSS rescore
  11. 2026-10-05 09:38 UTCEG score recompute
  12. 2026-10-04 23:22 UTCEPSS rescore
  13. 2026-10-03 16:39 UTCEG score recompute
  14. 2026-10-03 14:26 UTCEPSS rescore
  15. 2026-10-03 01:46 UTCEG score recompute
  16. 2026-10-02 17:56 UTCEPSS rescore
  17. 2026-10-01 22:44 UTCEG score recompute
  18. 2026-10-01 19:50 UTCEPSS rescore
  19. 2026-09-30 20:25 UTCEG score recompute
  20. 2026-09-30 15:03 UTCEPSS rescore
  21. 2026-09-29 15:33 UTCEG score recompute
  22. 2026-09-28 21:35 UTCEG score recompute
  23. 2026-09-28 13:51 UTCEPSS rescore
  24. 2026-09-27 14:38 UTCEG score recompute
  25. 2026-09-27 01:08 UTCEG score recompute
Show 75 more
  1. 2026-09-26 15:59 UTCEPSS rescore
  2. 2026-09-24 15:44 UTCEG score recompute
  3. 2026-09-24 02:52 UTCEG score recompute
  4. 2026-09-23 17:54 UTCEPSS rescore
  5. 2026-09-23 01:09 UTCEG score recompute
  6. 2026-09-21 23:26 UTCEG score recompute
  7. 2026-09-20 21:45 UTCEG score recompute
  8. 2026-09-20 20:16 UTCEPSS rescore
  9. 2026-09-19 19:43 UTCEG score recompute
  10. 2026-09-19 06:52 UTCEG score recompute
  11. 2026-09-18 19:28 UTCEPSS rescore
  12. 2026-09-18 05:07 UTCEG score recompute
  13. 2026-09-16 14:29 UTCEG score recompute
  14. 2026-09-16 14:08 UTCEPSS rescore
  15. 2026-09-16 05:15 UTCEPSS rescore
  16. 2026-09-15 12:43 UTCEG score recompute
  17. 2026-09-13 21:42 UTCEG score recompute
  18. 2026-09-12 19:59 UTCEG score recompute
  19. 2026-09-11 18:16 UTCEG score recompute
  20. 2026-09-11 14:53 UTCEPSS rescore
  21. 2026-09-11 09:37 UTCEPSS rescore
  22. 2026-09-10 16:32 UTCEG score recompute
  23. 2026-09-09 01:42 UTCEG score recompute
  24. 2026-09-08 22:01 UTCEPSS rescore
  25. 2026-09-08 07:11 UTCGHSA enrichment
  26. 2026-09-07 18:20 UTCEG score recompute
  27. 2026-09-07 18:20 UTCGHSA enrichment
  28. 2026-09-07 16:01 UTCEPSS rescore
  29. 2026-09-07 05:29 UTCGHSA enrichment
  30. 2026-09-06 16:37 UTCEG score recompute
  31. 2026-09-06 16:37 UTCGHSA enrichment
  32. 2026-09-06 13:47 UTCEPSS rescore
  33. 2026-09-06 03:46 UTCEG score recompute
  34. 2026-09-06 03:46 UTCGHSA enrichment
  35. 2026-09-05 14:54 UTCGHSA enrichment
  36. 2026-09-05 02:01 UTCEG score recompute
  37. 2026-09-05 02:01 UTCGHSA enrichment
  38. 2026-09-04 13:10 UTCEG score recompute
  39. 2026-09-04 13:09 UTCGHSA enrichment
  40. 2026-09-04 05:07 UTCEPSS rescore
  41. 2026-09-04 00:19 UTCGHSA enrichment
  42. 2026-09-03 11:24 UTCGHSA enrichment
  43. 2026-09-02 22:30 UTCEG score recompute
  44. 2026-09-02 22:30 UTCGHSA enrichment
  45. 2026-09-02 14:12 UTCEPSS rescore
  46. 2026-09-02 09:38 UTCGHSA enrichment
  47. 2026-09-01 20:46 UTCEG score recompute
  48. 2026-09-01 20:46 UTCGHSA enrichment
  49. 2026-09-01 13:54 UTCEPSS rescore
  50. 2026-09-01 07:55 UTCEG score recompute
  51. 2026-09-01 07:55 UTCGHSA enrichment
  52. 2026-09-01 04:40 UTCEPSS rescore
  53. 2026-08-31 19:02 UTCEG score recompute▲ 1.60
  54. 2026-08-31 19:02 UTCGHSA enrichment
  55. 2026-08-31 19:00 UTCNVD updateCVSS v3 → 7.5 · severity → HIGH
  56. 2026-08-30 23:25 UTCEG score recompute
  57. 2026-08-30 23:25 UTCGHSA enrichment
  58. 2026-08-30 19:17 UTCEPSS rescore
  59. 2026-08-30 01:22 UTCEPSS rescore
  60. 2026-08-29 21:18 UTCEG score recompute
  61. 2026-08-29 21:18 UTCGHSA enrichment
  62. 2026-08-28 21:42 UTCEPSS rescore
  63. 2026-08-28 19:09 UTCGHSA enrichment
  64. 2026-08-28 02:47 UTCEG score recompute
  65. 2026-08-28 02:47 UTCGHSA enrichment
  66. 2026-08-27 14:25 UTCEPSS rescore
  67. 2026-08-27 00:41 UTCEG score recompute
  68. 2026-08-27 00:41 UTCGHSA enrichment
  69. 2026-08-26 14:46 UTCEPSS rescore
  70. 2026-08-25 22:34 UTCEG score recompute
  71. 2026-08-25 22:34 UTCGHSA enrichment
  72. 2026-08-25 13:49 UTCEPSS rescore
  73. 2026-08-24 20:26 UTCEG score recompute
  74. 2026-08-24 20:26 UTCGHSA enrichment
  75. 2026-08-24 19:22 UTCEG score recompute

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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 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 0.4% probability of exploitation in the next 30 days (34th percentile of EPSS-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?
A fix for CVE-2026-62385 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-62385 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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