Kinsta outage, October 2026: Information in regards to newly discovered PHP vulnerability CVE-2026-115560 (Oct 23, 2026)

Kinsta reported and resolved an incident: Information in regards to newly discovered PHP vulnerability CVE-2026-115560 (Oct 23, 2026). It lasted 4 days.

Resolved

From Kinsta's official status page, in their words.

What happened

Started
Resolved
Duration
4 days
Impact
none

Why it happened

Kinsta has not given a cause in its updates. We never guess one.

This incident on the Kinsta status page

Timeline

Newest first. From Kinsta's official status page, in their words.

  1. resolved

    We can confirm that the mitigations have been successful and no compromises have occurred as a result of this. If you have any other questions, please contact our support team at support@kinsta.com.

  2. investigating

    There were reports of a new vulnerability CVE-2026-115560, after the previous two were patched on October 22 on our platform. We already have mitigations against this, so there shouldn't be any incidents related to this. We'll post updates if there are any news.

What this means for a business (and what to check now)

  • Retry anything that failed during the 4 days.
  • Enter any payments, bookings or jobs you took another way.
  • If a deadline fell inside the window, keep this page as your record of the outage.

The full guide: what to do when a service you rely on is down

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