CVE-2026-79675

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-25. a secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Elevated
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.8Exploit: Elevated riskExposed: 0

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

NLTK before 3.10.3 fails to validate JVM options passed through the per-call options parameter in the java() function, allowing attackers to inject dangerous JVM flags. Attackers can supply malicious options like -agentpath, -javaagent, or @argfile to Stanford wrapper classes to achieve arbitrary code execution.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
75(Attend)
EG Risk 75/100SSVC: Attend

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
Severity98% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
36%
KEV
Not listed

Published

August 25, 2026

Last Modified

September 1, 2026

Advisory Details (2)

Auto-updated Sep 16, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

NLTK before 3.10.3 JVM Argument Injection via Per-Call Options | Advisories | VulnCheck

https://www.vulncheck.com/advisories/nltk-before-jvm-argument-injection-via-per-call-options
github Patch Available🟡 PoC Available

JVM argument injection bypass via per-call options in the NLTK Stanford wrappers (incomplete fix of CVE-2026-12841) · Advisory · nltk/nltk · GitHub

https://github.com/nltk/nltk/security/advisories/GHSA-m4rf-3fr8-xwx3

Vendor Advisories for CVE-2026-79675(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
nltk3.10.0-1, 3.10.1-1, 3.9.1-2, 3.9.2-1, 3.9.3-13.10.3-1—
PyPI(1)
PackageVulnerable rangeFixed inDependents
nltk0.8 ... 3.9b1 (68 versions)3.10.3—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 100× 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. 2026-09-18 22:51 UTCEG score recompute
  2. 2026-09-18 19:28 UTCEPSS rescore
  3. 2026-09-17 21:09 UTCEG score recompute
  4. 2026-09-16 19:23 UTCEG score recompute
  5. 2026-09-16 14:08 UTCEPSS rescore
  6. 2026-09-16 09:25 UTCEG score recompute
  7. 2026-09-16 05:15 UTCEPSS rescore
  8. 2026-09-15 06:06 UTCEG score recompute
  9. 2026-09-15 03:12 UTCEPSS rescore
  10. 2026-09-15 03:12 UTCEPSS rescore
  11. 2026-09-13 17:13 UTCEG score recompute
  12. 2026-09-12 15:33 UTCEG score recompute
  13. 2026-09-11 17:31 UTCEG score recompute
  14. 2026-09-11 14:53 UTCEPSS rescore
  15. 2026-09-11 14:53 UTCEPSS rescore
  16. 2026-09-11 10:08 UTCEG score recompute
  17. 2026-09-10 12:02 UTCEG score recompute
  18. 2026-09-09 01:14 UTCEG score recompute
  19. 2026-09-08 22:01 UTCEPSS rescore
  20. 2026-09-07 18:57 UTCEG score recompute
  21. 2026-09-06 16:18 UTCEG score recompute
  22. 2026-09-06 13:48 UTCEPSS rescore
  23. 2026-09-05 18:14 UTCEG score recompute
  24. 2026-09-04 14:42 UTCEG score recompute
  25. 2026-09-04 07:19 UTCEG score recompute
Show 75 more
  1. 2026-09-04 05:07 UTCEPSS rescore
  2. 2026-09-02 14:46 UTCEG score recompute
  3. 2026-09-02 14:12 UTCEPSS rescore
  4. 2026-09-01 20:21 UTCGHSA enrichment
  5. 2026-09-01 19:11 UTCGHSA enrichment
  6. 2026-09-01 15:24 UTCEG score recompute
  7. 2026-09-01 15:24 UTCGHSA enrichment
  8. 2026-09-01 13:54 UTCEPSS rescore
  9. 2026-09-01 11:43 UTCGHSA enrichment
  10. 2026-09-01 08:02 UTCEG score recompute
  11. 2026-09-01 08:02 UTCGHSA enrichment
  12. 2026-09-01 04:40 UTCEPSS rescore
  13. 2026-09-01 04:40 UTCEPSS rescore
  14. 2026-09-01 04:17 UTCGHSA enrichment
  15. 2026-09-01 00:35 UTCGHSA enrichment
  16. 2026-08-31 20:54 UTCGHSA enrichment
  17. 2026-08-31 18:45 UTCGHSA enrichment
  18. 2026-08-31 14:56 UTCGHSA enrichment
  19. 2026-08-31 11:11 UTCGHSA enrichment
  20. 2026-08-31 07:28 UTCGHSA enrichment
  21. 2026-08-31 03:48 UTCGHSA enrichment
  22. 2026-08-31 00:09 UTCGHSA enrichment
  23. 2026-08-30 20:29 UTCEG score recompute
  24. 2026-08-30 20:29 UTCGHSA enrichment
  25. 2026-08-30 19:18 UTCEPSS rescore
  26. 2026-08-30 19:17 UTCEPSS rescore
  27. 2026-08-30 16:49 UTCGHSA enrichment
  28. 2026-08-30 13:08 UTCGHSA enrichment
  29. 2026-08-30 09:28 UTCGHSA enrichment
  30. 2026-08-30 05:46 UTCGHSA enrichment
  31. 2026-08-30 02:05 UTCEG score recompute
  32. 2026-08-30 02:05 UTCGHSA enrichment
  33. 2026-08-30 01:22 UTCEPSS rescore
  34. 2026-08-29 22:25 UTCGHSA enrichment
  35. 2026-08-29 18:45 UTCGHSA enrichment
  36. 2026-08-29 15:03 UTCGHSA enrichment
  37. 2026-08-29 11:22 UTCGHSA enrichment
  38. 2026-08-29 07:38 UTCGHSA enrichment
  39. 2026-08-29 03:57 UTCGHSA enrichment
  40. 2026-08-29 00:16 UTCEG score recompute
  41. 2026-08-29 00:16 UTCGHSA enrichment
  42. 2026-08-28 21:42 UTCEPSS rescore
  43. 2026-08-28 16:10 UTCGHSA enrichment
  44. 2026-08-28 11:59 UTCGHSA enrichment
  45. 2026-08-28 08:19 UTCGHSA enrichment
  46. 2026-08-28 04:39 UTCGHSA enrichment
  47. 2026-08-28 00:56 UTCGHSA enrichment
  48. 2026-08-27 21:16 UTCGHSA enrichment
  49. 2026-08-27 17:36 UTCEG score recompute
  50. 2026-08-27 17:36 UTCGHSA enrichment
  51. 2026-08-27 17:14 UTCEG score recompute
  52. 2026-08-27 17:14 UTCGHSA enrichment
  53. 2026-08-27 14:25 UTCEPSS rescore
  54. 2026-08-27 13:19 UTCGHSA enrichment
  55. 2026-08-27 09:38 UTCGHSA enrichment
  56. 2026-08-27 05:58 UTCGHSA enrichment
  57. 2026-08-27 02:13 UTCGHSA enrichment
  58. 2026-08-26 22:33 UTCGHSA enrichment
  59. 2026-08-26 18:53 UTCEG score recompute
  60. 2026-08-26 18:53 UTCGHSA enrichment
  61. 2026-08-26 15:12 UTCEG score recompute
  62. 2026-08-26 15:12 UTCGHSA enrichment
  63. 2026-08-26 14:47 UTCEPSS rescore
  64. 2026-08-26 11:31 UTCGHSA enrichment
  65. 2026-08-26 07:51 UTCEG score recompute
  66. 2026-08-26 07:51 UTCGHSA enrichment
  67. 2026-08-26 04:11 UTCEG score recompute
  68. 2026-08-26 04:10 UTCGHSA enrichment
  69. 2026-08-26 03:24 UTCGHSA enrichment
  70. 2026-08-25 23:44 UTCGHSA enrichment
  71. 2026-08-25 20:05 UTCEG score recompute
  72. 2026-08-25 20:04 UTCGHSA enrichment
  73. 2026-08-25 16:24 UTCEG score recompute
  74. 2026-08-25 15:30 UTCEG score recompute
  75. 2026-08-25 15:29 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-79675?
CVE-2026-79675 is a critical vulnerability published on August 25, 2026. NLTK before 3.10.3 fails to validate JVM options passed through the per-call options parameter in the java() function, allowing attackers to inject dangerous JVM flags. Attackers can supply malicious options like -agentpath, -javaagent, or @argfile to Stanford wrapper classes to achieve arbitrary…
When was CVE-2026-79675 disclosed?
CVE-2026-79675 was first published in the National Vulnerability Database on August 25, 2026, with the most recent update on September 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-79675 actively exploited?
CVE-2026-79675 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 63.5% of all scored CVEs.
What is the CVSS score of CVE-2026-79675?
CVE-2026-79675 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-79675?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-79675, 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

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