CVE-2026-58174

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreHIGH confidence

Score 6.5 from GitHub Security Advisory published 2026-06-30. a secondary CVSS source baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
6.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.5Exploit: NoneExposed: 0

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

Hermes WebUI before 0.51.521 validates the workspace of an imported session under the active named profile but constructs the Session object without setting its profile in the /api/session/import handler, so the imported session is persisted with a null profile. Because a null profile is treated as the default profile by the profile authorization check, a user on the default profile can export the imported session transcript and use its session identifier to read files from the named profile's workspace, defeating the application's profile isolation.

CVSS v3
6.5
EG Score
6.5(high)
EPSS
17.9%
KEV
Not listed

Published

June 30, 2026

Last Modified

July 1, 2026

Advisory Details (5)

Auto-updated Jun 30, 2026
Patch available. Sources: github_commit, github_pr, github_release.
github_pr

[security] fix(session): scope imported sessions to active profile

Upstream fix in progress (PR #4489 · nesquena/hermes-webui, state=closed)

https://github.com/nesquena/hermes-webui/pull/4489
generic

Hermes WebUI < 0.51.521 - Cross-Profile Authorization Bypass via Unset Session Profile on Import | Advisories | VulnCheck

https://www.vulncheck.com/advisories/hermes-webui-cross-profile-authorization-bypass-via-unset-session-profile-on-import
github_release Patch Available

v0.51.521

Patch available: nesquena/hermes-webui v0.51.521

https://github.com/nesquena/hermes-webui/releases/tag/v0.51.521
github_pr Patch Available

Release v0.51.521 — scope imported sessions to active profile (#4489)

Patch available: nesquena/hermes-webui v0.51.741 (PR #4506 merged 2026-06-19)

https://github.com/nesquena/hermes-webui/pull/4506
github_commit Patch Available

commit 3d5ef4758e92 (nesquena/hermes-webui)

Patch available: nesquena/hermes-webui v0.51.741 (contains commit 3d5ef4758e92)

https://github.com/nesquena/hermes-webui/commit/3d5ef4758e920ba6888d49aaa4341de214693496

Vendor Advisories for CVE-2026-58174(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 24× in last 7d / 24× 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.

  1. 2026-07-06 16:27 UTCEPSS rescore
  2. 2026-07-06 16:27 UTCEPSS rescore
  3. 2026-07-06 11:27 UTCEG score recompute
  4. 2026-07-06 11:27 UTCGHSA enrichment
  5. 2026-07-06 02:23 UTCEPSS rescore
  6. 2026-07-06 02:23 UTCEPSS rescore
  7. 2026-07-05 12:38 UTCEG score recompute
  8. 2026-07-05 12:38 UTCGHSA enrichment
  9. 2026-07-05 02:31 UTCEPSS rescore
  10. 2026-07-05 02:30 UTCEPSS rescore
  11. 2026-07-04 13:49 UTCEG score recompute
  12. 2026-07-04 13:49 UTCGHSA enrichment
  13. 2026-07-04 06:31 UTCEPSS rescore
  14. 2026-07-04 06:31 UTCEPSS rescore
  15. 2026-07-03 14:59 UTCEG score recompute
  16. 2026-07-03 14:59 UTCGHSA enrichment
  17. 2026-07-02 16:11 UTCEG score recompute
  18. 2026-07-02 16:11 UTCGHSA enrichment
  19. 2026-07-01 17:22 UTCEG score recompute
  20. 2026-07-01 17:22 UTCGHSA enrichment
  21. 2026-07-01 15:07 UTCEPSS rescore
  22. 2026-06-30 18:33 UTCEG score recompute
  23. 2026-06-30 18:33 UTCGHSA enrichment
  24. 2026-06-30 18:32 UTCNVD updatefirst tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-58174?
CVE-2026-58174 is a medium vulnerability published on June 30, 2026. Hermes WebUI before 0.51.521 validates the workspace of an imported session under the active named profile but constructs the Session object without setting its profile in the /api/session/import handler, so the imported session is persisted with a null profile. Because a null profile is treated as…
When was CVE-2026-58174 disclosed?
CVE-2026-58174 was first published in the National Vulnerability Database on June 30, 2026, with the most recent update on July 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-58174 actively exploited?
CVE-2026-58174 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 17.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-58174?
CVE-2026-58174 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-58174?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-58174, 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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