CVE-2026-65315

HIGHPre-NVD 7.57.5
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-07-22. A secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 3 sources updated this week

Also known asEUVD-2026-46642 (ENISA EUVD) · GHSA-9hhj-2jwx-r87p (GitHub Security Advisories)Source: ENISA EUVD

7.5EG
EchelonGraph verdictPlan mitigationRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.8%CVSS: 7.5Exploit: None knownExposed services: Not assessed

A fix is referenced (a reference tagged "Patch", often a source commit), but no release containing it is confirmed — find the release that contains it; until it is applied, mitigate (WAF / firewall / segmentation).

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
7.5HIGHmedium confidence
EG Risk
49
EG Risk 49/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity75% × 45%
Impact severity (EG Severity): CVSS 7.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.8% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines at low or medium mission impact and sooner than that at high; until then, restrict network exposure of the affected system or apply the vendor's mitigation.
EPSS PROB
0.8%
EPSS %ILE
56th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (7.5): severity, escalated by confirmed exploitation. This CVE's 7.5 is its impact severity (EG Severity), not escalated.

EG Severity
7.5 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.8% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-27). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines at low or medium mission impact and sooner than that at high; until then, restrict network exposure of the affected system or apply the vendor's mitigation.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

July 21, 2026

Last Modified

October 24, 2026

Advisory Details (3)

Auto-updated Jul 22, 2026
Fix referenced — no release confirmed yet.
Web page

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
Web page

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
Web page

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 12× in last 7d / 47× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 260 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 160 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.8% · 56th percentile
  2. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.8% · 56th percentile
  3. 2026-10-27 21:05 UTCEG score recompute
  4. 2026-10-27 21:05 UTCGHSA enrichmentGHSA-9hhj-2jwx-r87p · GitHub severity HIGH · GitHub CVSS 7.5
  5. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.8% · 56th percentile
  6. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.8% · 56th percentile
  7. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.8% · 56th percentile
  8. 2026-10-25 14:12 UTCEG score recompute
  9. 2026-10-24 17:26 UTCEG score recompute
  10. 2026-10-24 17:26 UTCGHSA enrichmentGHSA-9hhj-2jwx-r87p · GitHub severity HIGH · GitHub CVSS 7.5
  11. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.8% · 56th percentile
  12. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.8% · 56th percentile
  13. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.8% · 56th percentile
  14. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.8% · 56th percentile
  15. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.8% · 56th percentile
  16. 2026-10-20 09:11 UTCEG score recompute
  17. 2026-10-20 09:10 UTCGHSA enrichmentGHSA-9hhj-2jwx-r87p · GitHub severity HIGH · GitHub CVSS 7.5
  18. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.8% · 56th percentile
  19. 2026-10-18 03:21 UTCEG score recompute
  20. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.8% · 56th percentile
  21. 2026-10-16 16:43 UTCEPSS rescoreEPSS 0.8% · 56th percentile
  22. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  23. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  24. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  25. 2026-10-13 11:17 UTCEG score recompute
Show 75 more
  1. 2026-10-13 11:16 UTCGHSA enrichmentGHSA-9hhj-2jwx-r87p · GitHub severity HIGH · GitHub CVSS 7.5
  2. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  3. 2026-10-12 15:47 UTCEG score recompute
  4. 2026-10-11 19:32 UTCEG score recompute
  5. 2026-10-11 16:47 UTCEG score recompute
  6. 2026-10-11 14:08 UTCEG score recompute
  7. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  8. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  9. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  10. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  11. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  12. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  13. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  14. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  15. 2026-10-04 14:46 UTCEG score recompute
  16. 2026-10-04 14:46 UTCGHSA enrichmentGHSA-9hhj-2jwx-r87p · GitHub severity HIGH · GitHub CVSS 7.5
  17. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  18. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  19. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  20. 2026-10-01 07:25 UTCEG score recompute
  21. 2026-10-01 07:25 UTCGHSA enrichmentGHSA-9hhj-2jwx-r87p · GitHub severity HIGH · GitHub CVSS 7.5
  22. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  23. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  24. 2026-09-28 06:03 UTCEG score recompute
  25. 2026-09-28 06:03 UTCGHSA enrichmentGHSA-9hhj-2jwx-r87p · GitHub severity HIGH · GitHub CVSS 7.5
  26. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  27. 2026-09-24 15:01 UTCEG score recompute
  28. 2026-09-24 15:01 UTCGHSA enrichmentGHSA-9hhj-2jwx-r87p · GitHub severity HIGH · GitHub CVSS 7.5
  29. 2026-09-24 03:20 UTCEG score recompute
  30. 2026-09-24 03:20 UTCGHSA enrichmentGHSA-9hhj-2jwx-r87p · GitHub severity HIGH · GitHub CVSS 7.5
  31. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  32. 2026-09-23 01:22 UTCEG score recompute
  33. 2026-09-23 01:22 UTCGHSA enrichmentGHSA-9hhj-2jwx-r87p · GitHub severity HIGH · GitHub CVSS 7.5
  34. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  35. 2026-09-20 05:54 UTCEG score recompute
  36. 2026-09-20 05:54 UTCGHSA enrichmentGHSA-9hhj-2jwx-r87p · GitHub severity HIGH · GitHub CVSS 7.5
  37. 2026-09-19 00:19 UTCEG score recompute
  38. 2026-09-19 00:19 UTCGHSA enrichmentGHSA-9hhj-2jwx-r87p · GitHub severity HIGH · GitHub CVSS 7.5
  39. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  40. 2026-09-18 03:46 UTCEG score recompute
  41. 2026-09-18 03:46 UTCGHSA enrichmentGHSA-9hhj-2jwx-r87p · GitHub severity HIGH · GitHub CVSS 7.5
  42. 2026-09-17 05:04 UTCEG score recompute
  43. 2026-09-17 05:04 UTCGHSA enrichmentGHSA-9hhj-2jwx-r87p · GitHub severity HIGH · GitHub CVSS 7.5
  44. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  45. 2026-09-16 12:35 UTCEG score recompute
  46. 2026-09-16 12:35 UTCGHSA enrichmentGHSA-9hhj-2jwx-r87p · GitHub severity HIGH · GitHub CVSS 7.5
  47. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  48. 2026-09-14 10:19 UTCGHSA enrichmentGHSA-9hhj-2jwx-r87p · GitHub severity HIGH · GitHub CVSS 7.5
  49. 2026-09-13 22:38 UTCEG score recompute
  50. 2026-09-13 22:38 UTCGHSA enrichmentGHSA-9hhj-2jwx-r87p · GitHub severity HIGH · GitHub CVSS 7.5
  51. 2026-09-13 08:17 UTCGHSA enrichmentGHSA-9hhj-2jwx-r87p · GitHub severity HIGH · GitHub CVSS 7.5
  52. 2026-09-12 21:12 UTCEG score recompute
  53. 2026-09-12 21:12 UTCGHSA enrichmentGHSA-9hhj-2jwx-r87p · GitHub severity HIGH · GitHub CVSS 7.5
  54. 2026-09-12 09:44 UTCGHSA enrichmentGHSA-9hhj-2jwx-r87p · GitHub severity HIGH · GitHub CVSS 7.5
  55. 2026-09-11 20:31 UTCEG score recompute
  56. 2026-09-11 20:31 UTCGHSA enrichmentGHSA-9hhj-2jwx-r87p · GitHub severity HIGH · GitHub CVSS 7.5
  57. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  58. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  59. 2026-09-11 08:53 UTCEG score recompute
  60. 2026-09-11 08:53 UTCGHSA enrichmentGHSA-9hhj-2jwx-r87p · GitHub severity HIGH · GitHub CVSS 7.5
  61. 2026-09-09 11:11 UTCEG score recompute
  62. 2026-09-09 11:11 UTCGHSA enrichmentGHSA-9hhj-2jwx-r87p · GitHub severity HIGH · GitHub CVSS 7.5
  63. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  64. 2026-09-07 22:28 UTCEG score recompute
  65. 2026-09-07 22:28 UTCGHSA enrichmentGHSA-9hhj-2jwx-r87p · GitHub severity HIGH · GitHub CVSS 7.5
  66. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  67. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  68. 2026-09-06 10:39 UTCGHSA enrichmentGHSA-9hhj-2jwx-r87p · GitHub severity HIGH · GitHub CVSS 7.5
  69. 2026-09-05 19:50 UTCEG score recompute
  70. 2026-09-05 19:50 UTCGHSA enrichmentGHSA-9hhj-2jwx-r87p · GitHub severity HIGH · GitHub CVSS 7.5
  71. 2026-09-05 15:31 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  72. 2026-09-05 08:26 UTCEG score recompute
  73. 2026-09-05 08:26 UTCGHSA enrichmentGHSA-9hhj-2jwx-r87p · GitHub severity HIGH · GitHub CVSS 7.5
  74. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  75. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.8% · 54th percentile

Frequently asked(5)

What is CVE-2026-65315?
CVE-2026-65315 is a high-severity vulnerability; its CVE record was 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 made public?
CVE-2026-65315 was made public on July 21, 2026: that is the date its CVE record's CNA, VulnCheck, gives for when the vulnerability was made public. The CVE record itself was published on July 21, 2026. EchelonGraph's copy of the record carries a last-modified date of October 24, 2026; the record at its source may have been updated since.
Is CVE-2026-65315 actively exploited?
CVE-2026-65315 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.8% probability of exploitation in the next 30 days (56th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-65315?
CVE-2026-65315 has a CVSS base score of 7.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-65315?
A fix for CVE-2026-65315 is referenced (a reference tagged "Patch", often a source commit), but EchelonGraph has no release containing it on record. Check that reference and the vendor's advisory for a release that contains the fix and update to it; until then, restrict network exposure of the affected system or apply the vendor's mitigation. The vendor advisories EchelonGraph has for CVE-2026-65315 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-65315

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