CVE-2026-53871

HIGHPre-NVD 8.18.1—
EchelonGraph scoreHIGH confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-06-17. the CNA's CVSS baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:vulncheck, epss, ghsa
Trending — 3 sources updated this week
8.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.1Exploit: NoneExposed: 0

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

Hermes WebUI before 0.51.368 contains an authorization bypass vulnerability in the get_profile_cookie() function that accepts unauthenticated profile names from the hermes_profile cookie. An authenticated attacker can forge the hermes_profile cookie value to bypass profile-scoped authorization checks and access sessions, files, and resources across different profiles.

CVSS v3
8.1
EG Score
8.1(high)
EPSS
28.6%
KEV
Not listed

Published

June 17, 2026

Last Modified

June 23, 2026

Advisory Details (5)

Auto-updated Jun 17, 2026
Patch available. Sources: github_pr, github_release, github_commit.
generic

Hermes WebUI < 0.51.368 - Profile-Scoped Authorization Bypass via Forged hermes_profile Cookie | Advisories | VulnCheck

https://www.vulncheck.com/advisories/hermes-webui-profile-scoped-authorization-bypass-via-forged-hermes-profile-cookie
github_release Patch Available

v0.51.368

Patch available: nesquena/hermes-webui v0.51.368

https://github.com/nesquena/hermes-webui/releases/tag/v0.51.368
github_pr Patch Available

Release MG — v0.51.368 — bind active-profile cookie to auth session (#4023, fixes #803)

Patch available: nesquena/hermes-webui v0.51.452 (PR #4036 merged 2026-06-12)

https://github.com/nesquena/hermes-webui/pull/4036
github_pr Patch Available

[security] fix(auth): bind active profile cookie to session

Patch available: nesquena/hermes-webui v0.51.452 (PR #4023 merged 2026-06-12)

https://github.com/nesquena/hermes-webui/pull/4023
github_commit Patch Available

commit 9e96f5f6adf9 (nesquena/hermes-webui)

Patch available: nesquena/hermes-webui v0.51.452 (contains commit 9e96f5f6adf9)

https://github.com/nesquena/hermes-webui/commit/9e96f5f6adf93b6d1e27ebddfb4d2833ca06ff3b

Vendor Advisories for CVE-2026-53871(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 40× in last 7d / 116× 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 116 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-53871?
CVE-2026-53871 is a high vulnerability published on June 17, 2026. Hermes WebUI before 0.51.368 contains an authorization bypass vulnerability in the getprofilecookie() function that accepts unauthenticated profile names from the hermesprofile cookie. An authenticated attacker can forge the hermesprofile cookie value to bypass profile-scoped authorization checks…
When was CVE-2026-53871 disclosed?
CVE-2026-53871 was first published in the National Vulnerability Database on June 17, 2026, with the most recent update on June 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-53871 actively exploited?
CVE-2026-53871 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 28.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-53871?
CVE-2026-53871 has a CVSS v4.0 base score of 8.1 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-53871?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53871, 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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