Pantheon outage, 21 October 2026

PHP Vulnerabilities CVE-2026-109618 and CVE-2026-109619

Started
Resolved
22 Oct 2026, 16:36 UTC (after 26 h 32 min)
Impact
Not stated
Affected
Customer Sites

Is this still happening?

No. Pantheon marked this incident resolved on 22 Oct 2026, 16:36 UTC, 26 h 32 min after it began.

Right now: Pantheon reports all systems operational. (as of 26 Oct, 03:47 UTC) Live Pantheon status

Last update from Pantheon

Overnight monitoring continues to show persistent but limited probing, which is being blocked. Our rollout of updated PHP images across customer environments including LTS versions was complete as of 5pm Pacific time yesterday. We will continue to observe and may provide further analysis of our findings, but we are closing this incident.

22 Oct 2026, 16:36 UTC

Read the full incident on the official Pantheon status page

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