CVE-2026-53871

HIGHPre-NVD 8.18.1—
EchelonGraph scoreMEDIUM 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
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.1Exploit: None knownExposed: 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(medium)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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
Severity81% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
30%
KEV
Not listed

Published

June 17, 2026

Last Modified

September 17, 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 12× in last 7d / 42× 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 257 total refreshes for this CVE.

  1. 2026-09-18 19:28 UTCEPSS rescore
  2. 2026-09-17 19:31 UTCEPSS rescore
  3. 2026-09-17 19:11 UTCGHSA enrichment
  4. 2026-09-17 18:16 UTCEG score recompute
  5. 2026-09-17 18:16 UTCGHSA enrichment
  6. 2026-09-16 14:08 UTCEPSS rescore
  7. 2026-09-16 05:15 UTCEPSS rescore
  8. 2026-09-14 02:22 UTCEG score recompute
  9. 2026-09-14 02:22 UTCGHSA enrichment
  10. 2026-09-13 16:47 UTCEPSS rescore
  11. 2026-09-13 14:08 UTCEG score recompute
  12. 2026-09-13 14:08 UTCGHSA enrichment
  13. 2026-09-11 14:53 UTCEPSS rescore
  14. 2026-09-10 09:35 UTCEPSS rescore
  15. 2026-09-08 22:01 UTCEPSS rescore
  16. 2026-09-07 16:01 UTCEPSS rescore
  17. 2026-09-06 13:47 UTCEPSS rescore
  18. 2026-09-04 05:06 UTCEPSS rescore
  19. 2026-09-02 14:12 UTCEPSS rescore
  20. 2026-09-01 13:54 UTCEPSS rescore
  21. 2026-09-01 04:40 UTCEPSS rescore
  22. 2026-08-30 21:17 UTCEG score recompute
  23. 2026-08-30 21:17 UTCGHSA enrichment
  24. 2026-08-30 19:17 UTCEPSS rescore
  25. 2026-08-30 01:22 UTCEPSS rescore
Show 75 more
  1. 2026-08-28 21:41 UTCEPSS rescore
  2. 2026-08-27 14:25 UTCEPSS rescore
  3. 2026-08-26 14:46 UTCEPSS rescore
  4. 2026-08-25 13:49 UTCEPSS rescore
  5. 2026-08-24 22:22 UTCEG score recompute
  6. 2026-08-24 22:22 UTCGHSA enrichment
  7. 2026-08-24 05:18 UTCGHSA enrichment
  8. 2026-08-23 14:54 UTCGHSA enrichment
  9. 2026-08-23 03:59 UTCEG score recompute
  10. 2026-08-23 03:59 UTCGHSA enrichment
  11. 2026-08-23 00:19 UTCEPSS rescore
  12. 2026-08-21 23:49 UTCEPSS rescore
  13. 2026-08-21 17:37 UTCGHSA enrichment
  14. 2026-08-21 06:21 UTCEG score recompute
  15. 2026-08-21 06:21 UTCGHSA enrichment
  16. 2026-08-20 22:55 UTCEPSS rescore
  17. 2026-08-20 19:08 UTCGHSA enrichment
  18. 2026-08-20 08:12 UTCEG score recompute
  19. 2026-08-20 08:12 UTCGHSA enrichment
  20. 2026-08-19 17:04 UTCEPSS rescore
  21. 2026-08-19 08:08 UTCEG score recompute
  22. 2026-08-19 08:08 UTCGHSA enrichment
  23. 2026-08-18 13:48 UTCEPSS rescore
  24. 2026-08-17 13:47 UTCEPSS rescore
  25. 2026-08-17 07:49 UTCGHSA enrichment
  26. 2026-08-16 20:52 UTCEG score recompute
  27. 2026-08-16 20:52 UTCGHSA enrichment
  28. 2026-08-16 14:56 UTCEPSS rescore
  29. 2026-08-16 08:15 UTCEG score recompute
  30. 2026-08-16 08:15 UTCGHSA enrichment
  31. 2026-08-16 02:14 UTCEPSS rescore
  32. 2026-08-15 21:20 UTCGHSA enrichment
  33. 2026-08-15 09:10 UTCEG score recompute
  34. 2026-08-15 09:10 UTCGHSA enrichment
  35. 2026-08-15 01:30 UTCEPSS rescore
  36. 2026-08-14 21:34 UTCGHSA enrichment
  37. 2026-08-14 10:38 UTCGHSA enrichment
  38. 2026-08-13 23:42 UTCEG score recompute
  39. 2026-08-13 23:42 UTCGHSA enrichment
  40. 2026-08-13 22:00 UTCEPSS rescore
  41. 2026-08-13 12:43 UTCGHSA enrichment
  42. 2026-08-13 01:31 UTCGHSA enrichment
  43. 2026-08-12 14:35 UTCEG score recompute
  44. 2026-08-12 14:35 UTCGHSA enrichment
  45. 2026-08-12 13:51 UTCEPSS rescore
  46. 2026-08-12 03:36 UTCGHSA enrichment
  47. 2026-08-11 16:40 UTCEG score recompute
  48. 2026-08-11 16:40 UTCGHSA enrichment
  49. 2026-08-11 05:44 UTCEG score recompute
  50. 2026-08-11 05:44 UTCGHSA enrichment
  51. 2026-08-11 00:00 UTCEPSS rescore
  52. 2026-08-10 18:48 UTCGHSA enrichment
  53. 2026-08-10 07:33 UTCGHSA enrichment
  54. 2026-08-09 20:37 UTCEG score recompute
  55. 2026-08-09 20:37 UTCGHSA enrichment
  56. 2026-08-09 13:46 UTCEPSS rescore
  57. 2026-08-09 09:41 UTCGHSA enrichment
  58. 2026-08-08 22:45 UTCEG score recompute
  59. 2026-08-08 22:45 UTCGHSA enrichment
  60. 2026-08-08 16:37 UTCEPSS rescore
  61. 2026-08-08 11:49 UTCGHSA enrichment
  62. 2026-08-08 00:53 UTCEG score recompute
  63. 2026-08-08 00:53 UTCGHSA enrichment
  64. 2026-08-07 13:57 UTCGHSA enrichment
  65. 2026-08-07 03:01 UTCGHSA enrichment
  66. 2026-08-06 16:03 UTCEG score recompute
  67. 2026-08-06 16:03 UTCGHSA enrichment
  68. 2026-08-06 13:47 UTCEPSS rescore
  69. 2026-08-06 05:07 UTCEG score recompute
  70. 2026-08-06 05:07 UTCGHSA enrichment
  71. 2026-08-05 19:17 UTCEPSS rescore
  72. 2026-08-05 18:11 UTCGHSA enrichment
  73. 2026-08-05 02:54 UTCGHSA enrichment
  74. 2026-08-04 15:25 UTCEG score recompute
  75. 2026-08-04 15:25 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 September 17, 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 0% probability of exploitation in the next 30 days, which ranks it in the top 69.6% of all scored CVEs.
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.

Dependency Blast Radius

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