CVE-2026-75090

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreMEDIUM confidence

Score 4.3 from GitHub Security Advisory (severity: LOW) published 2026-08-18. A secondary CVSS source baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.7%CVSS: 4.3Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

A vulnerability was detected in EricLBuehler Mistral.rs up to 0.8.22. Affected by this issue is the function convert_gguf_to_hf_tokenizer of the file mistralrs-core/src/gguf/gguf_tokenizer.rs of the component GGUF Tokenizer. The manipulation of the argument eos_token_id/bos_token_id/unknown_token_id results in out-of-bounds read. The attack can be executed remotely. The exploit is now public and may be used. Upgrading to version 0.8.23 can resolve this issue. The patch is identified as cd5297e2ea5cb27c790bdcf2f3c2f1064a81d55e. Upgrading the affected component is recommended.

CVSS v3
4.3
EG Score
4.3MEDIUMmedium 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
Severity43% × 45%
Exploitation40% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.7%
EPSS %ILE
51st
KEV
Not listed

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

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable yes (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 18, 2026

Last Modified

August 20, 2026

Advisory Details (5)

Auto-updated Aug 18, 2026
🔬 Proof of concept available. Patch available. Sources: github_pr, github_commit, github_release.
generic

GitHub - EricLBuehler/mistral.rs: Fast, flexible LLM inference · GitHub

https://github.com/EricLBuehler/mistral.rs/
github_release Patch Available

v0.8.23

Patch available: EricLBuehler/mistral.rs v0.8.23

https://github.com/EricLBuehler/mistral.rs/releases/tag/v0.8.23
github_commit

commit cd5297e2ea5c (EricLBuehler/mistral.rs)

Fix landed in EricLBuehler/mistral.rs commit cd5297e2ea5c — awaiting tagged release

https://github.com/EricLBuehler/mistral.rs/commit/cd5297e2ea5cb27c790bdcf2f3c2f1064a81d55e
github_pr

Validate GGUF special token ids against vocab to prevent OOB panic

Fix merged in EricLBuehler/mistral.rs PR #2282 on 2026-06-25 — awaiting tagged release

https://github.com/EricLBuehler/mistral.rs/pull/2282
generic🟡 PoC Available

Out-of-bounds index panic (DoS) via unvalidated GGUF token ID in mistral.rs tokenizer loader · Issue #2225 · EricLBuehler/mistral.rs · GitHub

https://github.com/EricLBuehler/mistral.rs/issues/2225

Vendor Advisories for CVE-2026-75090(1)

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

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 16× in last 7d / 75× 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 139 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-75090?
CVE-2026-75090 is a medium vulnerability published on August 18, 2026. A vulnerability was detected in EricLBuehler Mistral.rs up to 0.8.22. Affected by this issue is the function convertgguftohftokenizer of the file mistralrs-core/src/gguf/gguftokenizer.rs of the component GGUF Tokenizer. The manipulation of the argument eostokenid/bostokenid/unknowntoken_id results…
When was CVE-2026-75090 disclosed?
CVE-2026-75090 was first published on August 18, 2026, with the most recent update on August 20, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-75090 actively exploited?
CVE-2026-75090 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.7% probability of exploitation in the next 30 days (51st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-75090?
CVE-2026-75090 has a CVSS base score of 4.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-75090?
A fix for CVE-2026-75090 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-75090 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-75090

Explore →

Is Your Infrastructure Affected by CVE-2026-75090?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs