CVE-2026-49956

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

Score 6.5 from GitHub Security Advisory (severity: HIGH) published 2026-06-09. a secondary CVSS source baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.5Exploit: Elevated riskExposed: 0

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

Hermes WebUI before version 0.51.269 contains a profile isolation bypass vulnerability that allows authenticated users to access data belonging to other profiles by querying the session search endpoint without active-profile filtering. Attackers can send requests to the sessions search handler to retrieve session titles and transcript message content from profiles other than their own active profile.

CVSS v3
6.5
EG Score
6.5(medium)
EG Risk
45(Track)
EG Risk 45/100SSVC: 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
Severity65% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
19%
KEV
Not listed

Published

June 9, 2026

Last Modified

July 23, 2026

Advisory Details (5)

Auto-updated Jun 12, 2026
Patch available. Sources: github_commit, github_pr, github_release.
github_pr

fix: scope session search to active profile

Upstream fix in progress (PR #3646 · nesquena/hermes-webui, state=closed)

https://github.com/nesquena/hermes-webui/pull/3646
generic

Hermes WebUI < 0.51.269 Profile Isolation Bypass via sessions search | Advisories | VulnCheck

https://www.vulncheck.com/advisories/hermes-webui-profile-isolation-bypass-via-sessions-search
github_release Patch Available

v0.51.269

Patch available: nesquena/hermes-webui v0.51.269

https://github.com/nesquena/hermes-webui/releases/tag/v0.51.269
github_pr Patch Available

Release v0.51.269 — Release IK (stage-b2 — sidebar perf + search scope + Windows ctl)

Patch available: nesquena/hermes-webui v0.51.340 (PR #3672 merged 2026-06-05)

https://github.com/nesquena/hermes-webui/pull/3672
github_commit Patch Available

commit 2c7b530071bb (nesquena/hermes-webui)

Patch available: nesquena/hermes-webui v0.51.340 (contains commit 2c7b530071bb)

https://github.com/nesquena/hermes-webui/commit/2c7b530071bb29ae4184e83e33be5799d529568e

Vendor Advisories for CVE-2026-49956(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 18× in last 7d / 57× 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 115 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-49956?
CVE-2026-49956 is a medium vulnerability published on June 9, 2026. Hermes WebUI before version 0.51.269 contains a profile isolation bypass vulnerability that allows authenticated users to access data belonging to other profiles by querying the session search endpoint without active-profile filtering. Attackers can send requests to the sessions search handler to…
When was CVE-2026-49956 disclosed?
CVE-2026-49956 was first published in the National Vulnerability Database on June 9, 2026, with the most recent update on July 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-49956 actively exploited?
CVE-2026-49956 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 80.6% of all scored CVEs.
What is the CVSS score of CVE-2026-49956?
CVE-2026-49956 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-49956?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-49956, 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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