CVE-2026-14626

MEDIUMPre-NVD 4.34.3
EchelonGraph scoreMEDIUM confidence

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

Score 4.3 from GitHub Security Advisory (severity: LOW) published 2026-07-04. A secondary CVSS source baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 4 sources updated this weekElevated

Also known asEUVD-2026-41670 (ENISA EUVD) · GHSA-w268-f7gg-hc49 (GitHub Security Advisories)Source: ENISA EUVD

4.3EG
EchelonGraph verdictPlan mitigationRemediate within your standard update timelines (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 4.3Exploit: No code on recordExposed services: Not assessed

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

The CVE record's description, written by its CNA (VulDB), states the affected versions: "A weakness has been identified in NousResearch hermes-agent up to 2026.4.30." No release containing a fix is confirmed on record.

A weakness has been identified in NousResearch hermes-agent up to 2026.4.30. The impacted element is the function AIAgent.run_conversation of the file run_agent.py of the component HTTP API. This manipulation of the argument todos causes denial of service. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS v3
4.3
EG Score
4.3MEDIUMmedium confidence
EG Risk
35
EG Risk 35/100

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)
Severity43% × 45%
Impact severity (EG Severity): CVSS 4.3 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation public PoC (CISA Vulnrichment) · Automatable no (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: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.5%
EPSS %ILE
40th
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 (4.3): severity, escalated by confirmed exploitation. This CVE's 4.3 is its impact severity (EG Severity), not escalated.

EG Severity
4.3 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.5% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-24). 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; Track* at high (mission-essential systems).CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade 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; Track* at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (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)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (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 4, 2026

Last Modified

October 25, 2026

Advisory Details (1)

Auto-updated Jul 4, 2026
No fix on record yet.
Web page

Hermes Agent API Server allows forged todo-tool history hydration that can exhaust session context · GitHub

https://gist.github.com/YLChen-007/b91a85f9448beadebe25d37a3f4fd760

Vendor Advisories for CVE-2026-14626(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 / 39× 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 206 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 106 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  2. 2026-10-26 16:30 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  3. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  4. 2026-10-25 15:32 UTCGHSA enrichmentGHSA-w268-f7gg-hc49 · GitHub severity LOW · GitHub CVSS 4.3
  5. 2026-10-25 15:25 UTCNVD updateCVSS v4 → 2.1
  6. 2026-10-25 14:48 UTCEG score recompute
  7. 2026-10-24 16:32 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  8. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  9. 2026-10-23 06:29 UTCEG score recompute
  10. 2026-10-23 06:29 UTCGHSA enrichmentGHSA-w268-f7gg-hc49 · GitHub severity LOW · GitHub CVSS 4.3
  11. 2026-10-22 16:33 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  12. 2026-10-21 16:32 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  13. 2026-10-20 16:32 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  14. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  15. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  16. 2026-10-18 05:02 UTCEG score recompute
  17. 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  18. 2026-10-16 16:40 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  19. 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  20. 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  21. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  22. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  23. 2026-10-12 16:33 UTCEG score recompute
  24. 2026-10-11 20:10 UTCEG score recompute
  25. 2026-10-11 18:22 UTCEG score recompute
Show 75 more
  1. 2026-10-11 14:56 UTCEG score recompute
  2. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  3. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  4. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  5. 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  6. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  7. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  8. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  9. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  10. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  11. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  12. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  13. 2026-09-29 15:20 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  14. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  15. 2026-09-27 13:47 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  16. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  17. 2026-09-23 06:30 UTCEG score recompute
  18. 2026-09-23 06:30 UTCGHSA enrichmentGHSA-w268-f7gg-hc49 · GitHub severity LOW · GitHub CVSS 4.3
  19. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  20. 2026-09-18 06:10 UTCEG score recompute
  21. 2026-09-18 06:10 UTCGHSA enrichmentGHSA-w268-f7gg-hc49 · GitHub severity LOW · GitHub CVSS 4.3
  22. 2026-09-16 14:07 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  23. 2026-09-16 05:14 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  24. 2026-09-13 16:46 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  25. 2026-09-13 13:10 UTCEG score recompute
  26. 2026-09-13 13:10 UTCGHSA enrichmentGHSA-w268-f7gg-hc49 · GitHub severity LOW · GitHub CVSS 4.3
  27. 2026-09-12 15:00 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  28. 2026-09-12 13:46 UTCEG score recompute
  29. 2026-09-12 13:46 UTCGHSA enrichmentGHSA-w268-f7gg-hc49 · GitHub severity LOW · GitHub CVSS 4.3
  30. 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  31. 2026-09-11 09:36 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  32. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  33. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  34. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  35. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  36. 2026-09-05 23:35 UTCEG score recompute
  37. 2026-09-05 23:35 UTCGHSA enrichmentGHSA-w268-f7gg-hc49 · GitHub severity LOW · GitHub CVSS 4.3
  38. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  39. 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  40. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  41. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  42. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  43. 2026-08-30 11:14 UTCEG score recompute
  44. 2026-08-30 11:14 UTCGHSA enrichmentGHSA-w268-f7gg-hc49 · GitHub severity LOW · GitHub CVSS 4.3
  45. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  46. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  47. 2026-08-27 22:09 UTCEG score recompute
  48. 2026-08-27 22:09 UTCGHSA enrichmentGHSA-w268-f7gg-hc49 · GitHub severity LOW · GitHub CVSS 4.3
  49. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  50. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  51. 2026-08-26 13:59 UTCEG score recompute
  52. 2026-08-26 13:59 UTCGHSA enrichmentGHSA-w268-f7gg-hc49 · GitHub severity LOW · GitHub CVSS 4.3
  53. 2026-08-25 13:48 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  54. 2026-08-25 03:31 UTCEG score recompute
  55. 2026-08-25 03:31 UTCGHSA enrichmentGHSA-w268-f7gg-hc49 · GitHub severity LOW · GitHub CVSS 4.3
  56. 2026-08-24 04:07 UTCGHSA enrichmentGHSA-w268-f7gg-hc49 · GitHub severity LOW · GitHub CVSS 4.3
  57. 2026-08-23 04:37 UTCEG score recompute
  58. 2026-08-23 04:37 UTCGHSA enrichmentGHSA-w268-f7gg-hc49 · GitHub severity LOW · GitHub CVSS 4.3
  59. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  60. 2026-08-22 05:13 UTCEG score recompute
  61. 2026-08-22 05:13 UTCGHSA enrichmentGHSA-w268-f7gg-hc49 · GitHub severity LOW · GitHub CVSS 4.3
  62. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  63. 2026-08-21 04:25 UTCEG score recompute
  64. 2026-08-21 04:25 UTCGHSA enrichmentGHSA-w268-f7gg-hc49 · GitHub severity LOW · GitHub CVSS 4.3
  65. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  66. 2026-08-20 03:39 UTCEG score recompute
  67. 2026-08-20 03:39 UTCGHSA enrichmentGHSA-w268-f7gg-hc49 · GitHub severity LOW · GitHub CVSS 4.3
  68. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  69. 2026-08-19 03:55 UTCEG score recompute
  70. 2026-08-19 03:55 UTCGHSA enrichmentGHSA-w268-f7gg-hc49 · GitHub severity LOW · GitHub CVSS 4.3
  71. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  72. 2026-08-18 04:06 UTCEG score recompute
  73. 2026-08-18 04:05 UTCGHSA enrichmentGHSA-w268-f7gg-hc49 · GitHub severity LOW · GitHub CVSS 4.3
  74. 2026-08-17 02:49 UTCEG score recompute
  75. 2026-08-17 02:49 UTCGHSA enrichmentGHSA-w268-f7gg-hc49 · GitHub severity LOW · GitHub CVSS 4.3

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-14626?
CVE-2026-14626 is a medium-severity vulnerability; its CVE record was published on July 4, 2026. A weakness has been identified in NousResearch hermes-agent up to 2026.4.30. The impacted element is the function AIAgent.runconversation of the file runagent.py of the component HTTP API. This manipulation of the argument todos causes denial of service. The attack can be initiated remotely. The…
When was the CVE record for CVE-2026-14626 published?
The CVE record for CVE-2026-14626 was published on July 4, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of October 25, 2026; the record at its source may have been updated since.
Is CVE-2026-14626 actively exploited?
CVE-2026-14626 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (40th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-14626?
CVE-2026-14626 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-2026-14626?
No fix for CVE-2026-14626 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The CVE record's description, written by its CNA (VulDB), states the affected versions: "A weakness has been identified in NousResearch hermes-agent up to 2026.4.30." No release containing a fix is confirmed on record. The vendor advisories EchelonGraph has for CVE-2026-14626 are linked in the Vendor Advisories panel on this page.

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