---
id: "CVE-2026-54631"
kind: "vulnerability"
aliases: ["CVE-2026-54631"]
title: "Part-DB: committed secret lets attackers forge login cookies for any user"
severity: "medium"
cvss: 6.3
epss: 0.00109
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["docker", "package", "part-db", "self-hosted", "symfony"]
not_affected_if: ["custom-app-secret", "no-remember-me", "version-2.12.1-or-later"]
published_at: "2026-10-23T04:18:17+00:00"
first_seen_at: "2026-10-23T21:57:32+00:00"
updated_at: "2026-10-25T04:00:08+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-54631", "first_seen_at": "2026-10-23T21:57:32+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-54631", "first_seen_at": "2026-10-24T07:15:51+00:00"}]
---

# Part-DB: committed secret lets attackers forge login cookies for any user

Part-DB's repository commits a fixed APP_SECRET in its .env file, and the official Docker image does not replace it at startup. An attacker who knows that value can forge remember-me cookies and log in as any user without credentials.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Run `docker exec <container> printenv APP_SECRET` and compare with the value in the public repository's .env file (a03498528f5a5fc089273ec9ae5b2849)
- Check the running Part-DB version and confirm it is below `2.12.1`
- unknown

## Fix

- Upgrade Part-DB to `2.12.1` or later
- Set APP_SECRET to a freshly generated random value and rotate it so existing remember-me cookies are invalidated
- unknown

## Timeline

- 2026-10-23T21:57:32+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-54631
- 2026-10-24T07:15:51+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2026-54631

## From the sources

Part-DB is an open source inventory management system for electronic components. Prior to version 2.12.1, the file .env committed in the Part-DB repository contains a fixed value for APP_SECRET (a03498528f5a5fc089273ec9ae5b2849). The official Docker image jbtronics/part-db1 does not override or randomize this value at container start-up. Because Symfony uses APP_SECRET (via kernel.secret) as the HMAC key for signing remember-me cookies, any attacker who knows the secret -- or fetches it from the public repository -- can forge an arbitrary-user remember-me cookie and gain a fully authenticated session with no credentials required. This issue has been patched in version 2.12.1.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_