CVE-2026-10220

HIGHPre-NVD 7.37.3—
EchelonGraph scoreMEDIUM confidence

Score 7.3 from GitHub Security Advisory published 2026-06-01. a secondary CVSS source baseline 7.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
7.3
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.3Exploit: NoneExposed: 0

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

A vulnerability was determined in NousResearch hermes-agent up to 2026.4.30. Affected is the function _serve_plugin_skill/skill_view of the file tools/skills_tool.py. Executing a manipulation can lead to injection. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS v3
7.3
EG Score
7.3(medium)
EG Risk
64(Attend)
EG Risk 64/100SSVC: Attend

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
Severity73% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS
22.6%
KEV
Not listed

Published

June 1, 2026

Last Modified

July 22, 2026

Advisory Details (1)

Auto-updated Jun 11, 2026
No patch confirmed yet.
generic

Prompt Injection Filter Bypass in skills_tool.py via Multi-Word Payload Variants · GitHub

https://gist.github.com/YLChen-007/9dd399c6f75b31fa741a613dfd41de08

Vendor Advisories for CVE-2026-10220(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 9× in last 7d / 55× 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 125 total refreshes for this CVE.

  1. 2026-07-23 03:04 UTCEG score recompute
  2. 2026-07-22 14:08 UTCEPSS rescore
  3. 2026-07-22 07:21 UTCNVD updateCVSS v4 → 5.5
  4. 2026-07-21 15:24 UTCEPSS rescore
  5. 2026-07-20 17:08 UTCEPSS rescore
  6. 2026-07-19 14:30 UTCEPSS rescore
  7. 2026-07-19 02:28 UTCEPSS rescore
  8. 2026-07-18 10:04 UTCEPSS rescore
  9. 2026-07-16 17:02 UTCEPSS rescore
  10. 2026-07-16 01:38 UTCGHSA enrichment
  11. 2026-07-15 16:57 UTCEPSS rescore
  12. 2026-07-15 02:00 UTCEPSS rescore
  13. 2026-07-14 13:27 UTCGHSA enrichment
  14. 2026-07-13 22:30 UTCEPSS rescore
  15. 2026-07-13 06:12 UTCEPSS rescore
  16. 2026-07-12 05:46 UTCEPSS rescore
  17. 2026-07-12 02:47 UTCGHSA enrichment
  18. 2026-07-11 13:53 UTCGHSA enrichment
  19. 2026-07-11 08:27 UTCEPSS rescore
  20. 2026-07-09 19:10 UTCEPSS rescore
  21. 2026-07-08 17:07 UTCGHSA enrichment
  22. 2026-07-08 15:15 UTCEPSS rescore
  23. 2026-07-08 15:15 UTCEPSS rescore
  24. 2026-07-07 13:46 UTCEPSS rescore
  25. 2026-07-06 16:27 UTCEPSS rescore
Show 75 more
  1. 2026-07-06 02:23 UTCEPSS rescore
  2. 2026-07-05 02:30 UTCEPSS rescore
  3. 2026-07-05 02:30 UTCEPSS rescore
  4. 2026-07-04 06:31 UTCEPSS rescore
  5. 2026-07-02 15:50 UTCGHSA enrichment
  6. 2026-07-02 02:37 UTCGHSA enrichment
  7. 2026-07-01 15:06 UTCEPSS rescore
  8. 2026-07-01 15:06 UTCEPSS rescore
  9. 2026-07-01 13:30 UTCGHSA enrichment
  10. 2026-07-01 00:56 UTCGHSA enrichment
  11. 2026-06-30 23:22 UTCEPSS rescore
  12. 2026-06-30 00:41 UTCGHSA enrichment
  13. 2026-06-29 14:06 UTCEPSS rescore
  14. 2026-06-29 11:59 UTCGHSA enrichment
  15. 2026-06-28 18:29 UTCGHSA enrichment
  16. 2026-06-28 14:07 UTCEPSS rescore
  17. 2026-06-28 05:55 UTCGHSA enrichment
  18. 2026-06-28 04:56 UTCEPSS rescore
  19. 2026-06-28 04:56 UTCEPSS rescore
  20. 2026-06-27 17:11 UTCGHSA enrichment
  21. 2026-06-27 04:36 UTCGHSA enrichment
  22. 2026-06-27 03:08 UTCEPSS rescore
  23. 2026-06-26 16:01 UTCGHSA enrichment
  24. 2026-06-25 18:20 UTCGHSA enrichment
  25. 2026-06-25 13:49 UTCEPSS rescore
  26. 2026-06-25 05:45 UTCGHSA enrichment
  27. 2026-06-24 15:04 UTCGHSA enrichment
  28. 2026-06-24 14:05 UTCEPSS rescore
  29. 2026-06-24 02:21 UTCGHSA enrichment
  30. 2026-06-23 21:32 UTCEPSS rescore
  31. 2026-06-22 14:25 UTCEPSS rescore
  32. 2026-06-22 14:25 UTCEPSS rescore
  33. 2026-06-21 14:56 UTCEPSS rescore
  34. 2026-06-21 14:56 UTCEPSS rescore
  35. 2026-06-21 01:59 UTCEPSS rescore
  36. 2026-06-21 01:59 UTCEPSS rescore
  37. 2026-06-19 19:25 UTCEPSS rescore
  38. 2026-06-18 22:11 UTCGHSA enrichment
  39. 2026-06-18 17:52 UTCEPSS rescore
  40. 2026-06-17 23:35 UTCGHSA enrichment
  41. 2026-06-17 17:53 UTCEPSS rescore
  42. 2026-06-17 10:44 UTCGHSA enrichment
  43. 2026-06-16 21:41 UTCGHSA enrichment
  44. 2026-06-16 17:52 UTCEPSS rescore
  45. 2026-06-16 09:07 UTCGHSA enrichment
  46. 2026-06-15 20:24 UTCGHSA enrichment
  47. 2026-06-15 17:48 UTCEPSS rescore
  48. 2026-06-15 07:48 UTCGHSA enrichment
  49. 2026-06-14 23:18 UTCEPSS rescore
  50. 2026-06-14 19:14 UTCGHSA enrichment
  51. 2026-06-14 06:39 UTCGHSA enrichment
  52. 2026-06-13 23:00 UTCEPSS rescore
  53. 2026-06-13 23:00 UTCEPSS rescore
  54. 2026-06-13 18:03 UTCGHSA enrichment
  55. 2026-06-13 05:02 UTCGHSA enrichment
  56. 2026-06-12 23:12 UTCEPSS rescore
  57. 2026-06-12 16:27 UTCGHSA enrichment
  58. 2026-06-12 03:51 UTCGHSA enrichment
  59. 2026-06-11 15:17 UTCGHSA enrichment
  60. 2026-06-11 14:00 UTCEPSS rescore
  61. 2026-06-11 02:42 UTCGHSA enrichment
  62. 2026-06-10 22:18 UTCEPSS rescore
  63. 2026-06-10 14:08 UTCGHSA enrichment
  64. 2026-06-10 13:22 UTCEPSS rescore
  65. 2026-06-10 01:33 UTCGHSA enrichment
  66. 2026-06-09 12:59 UTCGHSA enrichment
  67. 2026-06-09 00:25 UTCGHSA enrichment
  68. 2026-06-08 14:17 UTCEPSS rescore
  69. 2026-06-08 14:17 UTCEPSS rescore
  70. 2026-06-08 11:51 UTCGHSA enrichment
  71. 2026-06-07 23:17 UTCGHSA enrichment
  72. 2026-06-07 15:25 UTCEPSS rescore
  73. 2026-06-07 15:24 UTCEPSS rescore
  74. 2026-06-07 10:43 UTCGHSA enrichment
  75. 2026-06-06 22:09 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-10220?
CVE-2026-10220 is a high vulnerability published on June 1, 2026. A vulnerability was determined in NousResearch hermes-agent up to 2026.4.30. Affected is the function servepluginskill/skillview of the file tools/skills_tool.py. Executing a manipulation can lead to injection. The attack may be performed from remote. The exploit has been publicly disclosed and may…
When was CVE-2026-10220 disclosed?
CVE-2026-10220 was first published in the National Vulnerability Database on June 1, 2026, with the most recent update on July 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-10220 actively exploited?
CVE-2026-10220 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 22.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-10220?
CVE-2026-10220 has a CVSS v3 base score of 7.3 (NVD).
How do I remediate CVE-2026-10220?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-10220, 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.

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