CVE-2026-17501

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

Score 5.3 from GitHub Security Advisory published 2026-07-27. a secondary CVSS source baseline 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.3Exploit: None knownExposed: 0

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

A flaw has been found in ggml-org llama.cpp e15efe0. This vulnerability affects the function transform of the file common/json-schema-to-grammar.cpp of the component JSON-Schema-to-GBNF Conversion. This manipulation causes uncontrolled recursion. The attack may be initiated remotely. The pull request to fix this issue awaits acceptance.

CVSS v3
5.3
EG Score
5.3(medium)
EG Risk
39(Track)
EG Risk 39/100SSVC: 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
Severity53% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
35%
KEV
Not listed

Published

July 27, 2026

Last Modified

July 29, 2026

Advisory Details (3)

Auto-updated Jul 27, 2026
No patch confirmed yet. Sources: github_pr.
generic

GitHub - ggml-org/llama.cpp: LLM inference in C/C++ · GitHub

https://github.com/ggml-org/llama.cpp/
github_pr

json-schema-to-grammar: harden _visit_pattern against malformed regex patterns

Upstream fix in progress (PR #25308 · ggml-org/llama.cpp, state=open)

https://github.com/ggml-org/llama.cpp/pull/25308
generic

Stack overflow (uncontrolled recursion) in JSON-Schema-to-GBNF conversion on a deeply nested schema · Issue #25283 · ggml-org/llama.cpp · GitHub

https://github.com/ggml-org/llama.cpp/issues/25283

Vendor Advisories for CVE-2026-17501(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(4)

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

Data Freshness Timeline

(refreshed 17× in last 7d / 72× 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 134 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-17501?
CVE-2026-17501 is a medium vulnerability published on July 27, 2026. A flaw has been found in ggml-org llama.cpp e15efe0. This vulnerability affects the function transform of the file common/json-schema-to-grammar.cpp of the component JSON-Schema-to-GBNF Conversion. This manipulation causes uncontrolled recursion. The attack may be initiated remotely. The pull…
When was CVE-2026-17501 disclosed?
CVE-2026-17501 was first published in the National Vulnerability Database on July 27, 2026, with the most recent update on July 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-17501 actively exploited?
CVE-2026-17501 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 64.6% of all scored CVEs.
What is the CVSS score of CVE-2026-17501?
CVE-2026-17501 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-17501?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-17501, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-17501

Explore →

Is Your Infrastructure Affected by CVE-2026-17501?

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

Start Free Scan →Browse All CVEs