How do I check whether I am affected by CVE-2026-107186?

Find out whether you run Archibus Web Central, i.e. whether /archibus/login.axvw responds on your server. Check the installed version against Eptura's patch notes. Review web server logs for POSTs to /archibus/dwr/call/plaincall/ whose body has callCount=2 or higher and names SecurityService isPasswordUppercase. Look for unexpected files in browsable directories.

What is the fix for CVE-2026-107186?

Unknown: no fixed version read. Rapid7 labels the issue FIXED, so get the patched Archibus release from Eptura support. Until then, block /archibus/ from the internet or restrict access to the DWR endpoints at the reverse proxy.

Who is not affected by CVE-2026-107186?

Not affected if: not-internet-exposed.

Live › vulnerability › CVE-2026-107186

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high8.6Package

Unauthenticated DWR request runs workflow rules without authentication

Eptura Archibus Web Central: a pre-auth DWR method (SecurityService.isPasswordUppercase) leaves a privileged core user session on the request thread. A second call in the same batch, runWorkflowRule, then runs with that session. An unauthenticated attacker can run workflow rules. Rapid7 chained this to read the database (CVE-2026-107187) and write files for RCE (CVE-2026-107188).

Summary written from the sources below. Check the originals before acting.

CVSS 3.x

8.6

high

scored by [email protected]

known so far5 of 6

missing: exploitation

First public: Oct 19, 2026 UTC
Last modified: Oct 24, 2026
Status: open
Known exploitation: None reported
Public exploit: None on GitHub
EPSS: not scored

First seen by InfraStack 2026-10-23 21:57 UTC. All times on this page are UTC.

Why it is high, and not just CVSS

Likelihood → · Impact ↓

critical

high

medium

high

medium

low

medium

low

Exploited: No reports yet.
Needs login: No.
Needs a special setup: Not known from the sources.
Reachable from: internet.
Worst case: Unauthenticated attacker triggers workflow rules, impact on data unknown.
CVSS said: 8.6. The facts above agree.

Who is affected

1 product

Know the next one before it finds you.

Add to Slack

Live › vulnerability › CVE-2026-107186

Go to dashboard

high8.6Package

Unauthenticated DWR request runs workflow rules without authentication

Summary written from the sources below. Check the originals before acting.

CVSS 3.x

8.6

high

scored by [email protected]

known so far5 of 6

missing: exploitation

First public: Oct 19, 2026 UTC
Last modified: Oct 24, 2026
Status: open
Known exploitation: None reported
Public exploit: None on GitHub
EPSS: not scored

First seen by InfraStack 2026-10-23 21:57 UTC. All times on this page are UTC.

Why it is high, and not just CVSS

Likelihood → · Impact ↓

critical

high

medium

high

medium

low

medium

low

Exploited: No reports yet.
Needs login: No.
Needs a special setup: Not known from the sources.
Reachable from: internet.
Worst case: Unauthenticated attacker triggers workflow rules, impact on data unknown.
CVSS said: 8.6. The facts above agree.

Who is affected

1 product

Know the next one before it finds you.

Add to Slack

Unauthenticated DWR request runs workflow rules without authentication

Why it is high, and not just CVSS

Who is affected

Know the next one before it finds you.

Unauthenticated DWR request runs workflow rules without authentication

Why it is high, and not just CVSS

Who is affected

Know the next one before it finds you.

How to check

The fix

Who had it, and when

What the sources say, verbatim

Sources