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CVE-2026-499739.4CriticalCWE-306

CVE-2026-49973: Hermes WebUI < 0.51.358 Unauthenticated Password Takeover via /api/settings

nesquena · hermes-webui

Fixed in 0.51.358 · Affected: nesquena hermes-webui before 0.51.358 · Exploitation: unlikely (under 1%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

0.5%probability of exploitation in the next 30 days
46th percentile
050100

Higher than 46% of scored CVEs

9.4CriticalCVSS 3.1
LowCrit.

DescriptionCVE.org

Hermes WebUI before version 0.51.358 contains an improper access control vulnerability that allows unauthenticated remote attackers to hijack initial setup by submitting the _set_password parameter to the settings API endpoint without any network origin restriction. Attackers on any reachable network can send a POST request to the settings endpoint during the first-run setup window to persist an arbitrary password hash, obtain a valid session cookie, and lock out the legitimate operator from their own instance.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

  • nesquena · hermes-webuibefore 0.51.358

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas
Exploitation
Unlikely (under 1%). EPSS under 1%, or no score yet.
CISA KEV
Not listed
Public check
No public nuclei template
Vendor
nesquena
Published
June 2026

CoverageNo articles yet

No CyberSIXT article names CVE-2026-49973 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.

References