CVE-2026-15685

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-07-14. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.5Exploit: None knownExposed: 0

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

Ollama downloadBlob Improper Validation of Array Index Denial-of-Service Vulnerability. This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Ollama. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the downloadBlob function. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an allocated array. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-27277.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
51%
KEV
Not listed

Published

July 13, 2026

Last Modified

July 14, 2026

Advisory Details (1)

Auto-updated Jul 13, 2026
No patch confirmed yet.
generic

ZDI-26-403 - TrendAI™ Zero Day Initiative™ (ZDI)

https://www.zerodayinitiative.com/advisories/ZDI-26-403/

Vendor Advisories for CVE-2026-15685(1)

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

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFixed inDependents
ollama———

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 21× in last 7d / 115× 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 160 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-15685?
CVE-2026-15685 is a high vulnerability published on July 13, 2026. Ollama downloadBlob Improper Validation of Array Index Denial-of-Service Vulnerability. This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Ollama. Authentication is not required to exploit this vulnerability. The specific flaw exists…
When was CVE-2026-15685 disclosed?
CVE-2026-15685 was first published in the National Vulnerability Database on July 13, 2026, with the most recent update on July 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-15685 actively exploited?
CVE-2026-15685 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 49.2% of all scored CVEs.
What is the CVSS score of CVE-2026-15685?
CVE-2026-15685 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-15685?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-15685, 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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