Skip to content
Fencer Intel
high 8.8

CVE-2026-89293 json

Missing server-side authorization in Eclipse Mnestix Browser admin server actions allows unauthenticated configuration tampering

published 8d ago modified 8d ago also EUVD-2026-115729

cvss
8.8
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 40%
public exploits
0
none known

Summary

In Eclipse Mnestix Browser versions 1.2.0 up until but excluding 2.3.0 it was possible for an unauthenticated attacker to perform actions that are only allowed to be executed by an authorized Mnestix user, like changing the Infrastructure settings or calling the connected and authenticated Mnestix AAS Generator backend.

Patch / fix

  • Eclipse Foundation Eclipse Mnestix 2.3.0

Is CVE-2026-89293 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
8d ago

Exploit prediction

0.46% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-11).

CVSS scores

assigned by version score vector
CNA 4.0 8.8 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N
CNA 4.0 8.8 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:L/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

  • Eclipse Foundation Eclipse Mnestix

Classification

Weakness
  • CWE-862 Missing Authorization
  • CWE-602 Client-Side Enforcement of Server-Side Security

References

Sources

Fencer Intel 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.