CVE-2026-58122

CRITICALPre-NVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

Score 9.1 from GitHub Security Advisory (severity: CRITICAL) published 2026-07-10. A secondary CVSS source baseline 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
9.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 9.1Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Hermes WebUI before 0.51.307 contains an authentication bypass vulnerability that allows unauthenticated remote attackers to circumvent local-origin IP restrictions on onboarding endpoints by supplying a spoofed X-Forwarded-For header with a loopback address. Attackers can exploit this bypass to perform server-side request forgery against internal services including cloud metadata endpoints, overwrite LLM provider configuration and API keys with attacker-controlled values, or initiate OAuth device-code flows to obtain persistent access tokens stored in auth.json.

CVSS v3
9.1
EG Score
9.1CRITICALmedium confidence
EG Risk
56
EG Risk 56/100CISA 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
Severity91% × 45%
Exploitation0% × 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
0.4%
EPSS %ILE
29th
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 none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (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

July 9, 2026

Last Modified

July 14, 2026

Advisory Details (4)

Auto-updated Sep 16, 2026
Patch available. Sources: github_commit, github_pr, github_release.
generic

Hermes WebUI < 0.51.307 Authentication Bypass via X-Forwarded-For Header Spoofing | Advisories | VulnCheck

https://www.vulncheck.com/advisories/hermes-webui-authentication-bypass-via-x-forwarded-for-header-spoofing
github_release Patch Available

v0.51.307

Patch available: nesquena/hermes-webui v0.51.307

https://github.com/nesquena/hermes-webui/releases/tag/v0.51.307
github_pr

fix: harden WebUI security-sensitive defaults

Upstream fix in progress (PR #3758 · nesquena/hermes-webui, state=closed)

https://github.com/nesquena/hermes-webui/pull/3758
github_commit Patch Available

commit 70596e6993be (nesquena/hermes-webui)

Patch available: nesquena/hermes-webui exp-v0.52.279 (contains commit 70596e6993be)

https://github.com/nesquena/hermes-webui/commit/70596e6993be0d4cee083c1c1a86f5e7ad5d57b7

Vendor Advisories for CVE-2026-58122(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 7× in last 7d / 48× 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 375 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-58122?
CVE-2026-58122 is a critical vulnerability published on July 9, 2026. Hermes WebUI before 0.51.307 contains an authentication bypass vulnerability that allows unauthenticated remote attackers to circumvent local-origin IP restrictions on onboarding endpoints by supplying a spoofed X-Forwarded-For header with a loopback address. Attackers can exploit this bypass to…
When was CVE-2026-58122 disclosed?
CVE-2026-58122 was first published on July 9, 2026, with the most recent update on July 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-58122 actively exploited?
CVE-2026-58122 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (29th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-58122?
CVE-2026-58122 has a CVSS base score of 9.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-58122?
A fix for CVE-2026-58122 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-58122 are linked in the Vendor Advisories panel on this page.

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