---
id: "CVE-2026-63400"
kind: "vulnerability"
aliases: ["CVE-2026-63400"]
title: "Coop: password reset leaves old sessions valid for 30 days"
severity: "low"
cvss: 2.3
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["coop", "package", "roost", "self-hosted"]
not_affected_if: ["version-1.0.2-or-later"]
published_at: "2026-10-30T23:17:15+00:00"
first_seen_at: "2026-10-30T23:26:12+00:00"
updated_at: "2026-10-30T23:28:14+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-63400", "first_seen_at": "2026-10-30T23:26:12+00:00"}]
---

# Coop: password reset leaves old sessions valid for 30 days

Coop, an open source review and moderation tool from ROOST, does not end existing database-backed sessions when a password is reset via resetPasswordForToken. An attacker who already holds a session keeps access after the user changes the password, until that session expires at its 30-day maximum age.

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

## How to check

- Check the installed Coop version; the description says versions before `1.0.2` are affected.
- Confirm whether password reset is reachable in your deployment (unknown from the sources whether it is enabled by default).

## Fix

- Move to Coop `1.0.2` or later.

## Timeline

- 2026-10-30T23:26:12+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-63400

## From the sources

Coop is an open source review and moderation tool from ROOST. Prior to 1.0.2, `resetPasswordForToken` updates the password row without invalidating database-backed sessions. An attacker who has acquired a password and established a session retains access even after the legitimate user resets the password, leaving the compromised account under attacker control until the session expires at its `30-day` maximum age. This issue is fixed in version 1.0.2.

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