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Fencer Vulns
critical 9.1

CVE-2026-108336 json

Token Signing Key Allows Unauthenticated Administrative Access

published 2026-10-14 25 d ago modified 2026-10-16 23 d ago also EUVD-2026-101706

cvss
9.1
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 12%
public exploits
0
none known

Summary

When the default self-signed certificate is used, an attacker could gain administrative access to the application.

The SSL certificate for the web interface is used to sign JWT access tokens that are used to validate that the user is logged in. When the default SSL certificate is used, an attacker could have the capability to sign JWT access tokens and bypass login.

An attacker could gain administrative access to the application and perform actions like configuring the service or requesting log collection. Device credentials and customer data cannot be accessed with this vulnerability.

Patch / fix

  • Hitachi Vantara Remot Ops Agent 2.1

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
total
Assessed
23 d ago

Exploit prediction

0.22% chance of exploitation in the next 30 days, higher than 12% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 9.1 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
CNA 4.0 9.1 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

  • Hitachi Vantara Remot Ops Agent

Classification

Weakness
  • CWE-321 Use of Hard-coded Cryptographic Key

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.