CVE-2026-65315

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-07-22. the CNA's CVSS baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:vulncheck, epss, ghsa
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 (HEAD f0078ae) contains an uncontrolled memory allocation vulnerability in the GGUF metadata parser that allows remote attackers to crash the server by supplying a crafted GGUF file with attacker-controlled length and count fields in string lengths, tensor dimension counts, and metadata array counts that are used as allocation sizes without validation against remaining file size. Attackers can upload a sub-1KB crafted GGUF file via the blob upload and model create or pull API endpoints to trigger unrecoverable Go runtime out-of-memory fatal errors or makeslice panics that bypass recovery middleware and crash the entire server process.

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
55%
KEV
Not listed

Published

July 21, 2026

Last Modified

July 28, 2026

Advisory Details (3)

Auto-updated Jul 22, 2026
No patch confirmed yet.
generic

Ollama Remote Denial of Service via Attacker-Controlled Allocation in GGUF Metadata Parser | Advisories | VulnCheck

https://www.vulncheck.com/advisories/ollama-remote-denial-of-service-via-attacker-controlled-allocation-in-gguf-metadata-parser
generic

GitHub - ollama/ollama: Get up and running with Kimi-K2.6, GLM-5.2, MiniMax, DeepSeek, gpt-oss, Qwen, Gemma and other models. · GitHub

https://github.com/ollama/ollama
generic

Unbounded / attacker-controlled memory allocation in the GGUF metadata parser → remote denial of service (unrecoverable server crash) from a tiny crafted model file · Issue #17042 · ollama/ollama · GitHub

https://github.com/ollama/ollama/issues/17042

Vendor Advisories for CVE-2026-65315(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 15× in last 7d / 89× 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 182 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-65315?
CVE-2026-65315 is a high vulnerability published on July 21, 2026. Ollama (HEAD f0078ae) contains an uncontrolled memory allocation vulnerability in the GGUF metadata parser that allows remote attackers to crash the server by supplying a crafted GGUF file with attacker-controlled length and count fields in string lengths, tensor dimension counts, and metadata…
When was CVE-2026-65315 disclosed?
CVE-2026-65315 was first published in the National Vulnerability Database on July 21, 2026, with the most recent update on July 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-65315 actively exploited?
CVE-2026-65315 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 45.2% of all scored CVEs.
What is the CVSS score of CVE-2026-65315?
CVE-2026-65315 has a CVSS v4.0 base score of 7.5 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-65315?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-65315, 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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