CVE-2026-43632

HIGHPre-NVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

Score 8.1 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-07. a secondary CVSS source baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.1Exploit: None knownExposed: 0

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

llama.cpp builds b7492 through the latest b9060 contains a use-after-free vulnerability in llama-server affecting six tokenization endpoints (/tokenize, /detokenize, /infill, /apply-template, /rerank, and /anthropic/count_tokens) that bypass the task queue and access ctx_server.vocab directly on HTTP worker threads. Attackers can exploit a time-of-check-time-of-use race condition where the main thread destroys and frees vocab after the synchronization lock is released but before the handler finishes using it, causing a crash or potential code execution when --sleep-idle-seconds is configured.

CVSS v3
8.1
EG Score
8.1(medium)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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
Severity81% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
26%
KEV
Not listed

Published

August 6, 2026

Last Modified

August 31, 2026

Advisory Details (1)

Auto-updated Aug 6, 2026
No patch confirmed yet.
generic

GitHub - Vladimir-tokarev-cyera/llama-cpp-security-patches: Security patches for unpatched llama.cpp vulnerabilities (CVE-2026-43626 through CVE-2026-43632) — Cyera Research · GitHub

https://github.com/Vladimir-tokarev-cyera/llama-cpp-security-patches

Vendor Advisories for CVE-2026-43632(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)
Debian:14(1)
PackageVulnerable rangeFixed inDependents
llama.cpp10108+dfsg-1 ... 9951+dfsg-3 (55 versions)——

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 23× in last 7d / 104× 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 167 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-43632?
CVE-2026-43632 is a high vulnerability published on August 6, 2026. llama.cpp builds b7492 through the latest b9060 contains a use-after-free vulnerability in llama-server affecting six tokenization endpoints (/tokenize, /detokenize, /infill, /apply-template, /rerank, and /anthropic/counttokens) that bypass the task queue and access ctxserver.vocab directly on HTTP…
When was CVE-2026-43632 disclosed?
CVE-2026-43632 was first published in the National Vulnerability Database on August 6, 2026, with the most recent update on August 31, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-43632 actively exploited?
CVE-2026-43632 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 73.6% of all scored CVEs.
What is the CVSS score of CVE-2026-43632?
CVE-2026-43632 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2026-43632?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-43632, 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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