Assessment of recently reported PHP vulnerabilities

What to do

• Check whether your product depends on Zapier. Check your stack

  Paste a package.json, lockfile, Terraform or a list of domains at down.guide/stack to see every provider you depend on.

• Confirm your retries, queues and scheduled jobs caught up after the 44m it lasted.

  Anything that failed between 2026-10-22 14:02 UTC and 2026-10-22 14:46 UTC may need a replay.

• Subscribe to Zapier's feed to hear about the next one first. RSS feed

  https://down.guide/feed?provider=zapier works in Slack (/feed subscribe), Discord feed bots and any RSS reader.

Updates from Zapier 2

1. investigatingOct 22, 2026, 2:02 PM UTC

   We have not identified customer impact related to the PHP vulnerabilities reported on October 21, 2026. Our security and engineering teams are reviewing potential exposure in NodeJS services and across Zapier. The assessment is ongoing. We will share further findings here as they are confirmed. Please reach out to our [Support team](https://zapier.com/app/get-help "Support team") if you need any help in the meantime.

   provider

2. resolvedOct 22, 2026, 2:46 PM UTC

   Our investigation into the reported PHP vulnerabilities is complete. We found no impact on Zapier services or customer data. This advisory is now closed. Security FAQ: PHP Vulnerabilities (CVE-2026-109618 and CVE-2026-109619) > 1. What is this issue? > Two vulnerabilities were disclosed in PHP, an open-source programming language. Both can lead to remote code execution under certain conditions. They affect PHP 8.2 before 8.2.35, 8.3 before 8.3.36, 8.4 before 8.4.27, and 8.5 before 8.5.12. > > 2. Is Zapier affected? > Our investigation is complete, and we found no impact on Zapier services or customer data. > > 3. Has customer data been affected? > No. Our investigation found no impact to customer data. > > 4. Does this affect the Zapier WordPress integration for example? > The Zapier WordPress plugin itself is not vulnerable. WordPress sites run on PHP, though, so site owners should make sure their PHP version is patched (see question 1 for the affected versions). > > 5. Could PHP applications I host be affected? > Possibly. Applications you run yourself, including on third-party hosting platforms, may be vulnerable if they run an affected PHP version, regardless of Zapier. We recommend updating to a patched PHP version.

   provider

Corrections

None so far.

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