aiohttp-session Session Fixation vulnerability
The pypi package aiohttp-session before 2.4.0 contained a Session Fixation vulnerability in load_session function for RedisStorage that can result in Session Hijacking. This attack appear to be exploitable via Any method that allows setting session cookies (?session=<>, or meta tags or script tags with Set-Cookie).
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | aiohttp-session | < 2.4.0 | 2.4.0 |
References
- https://github.com/aio-libs/aiohttp-session/issues/272
- https://github.com/aio-libs/aiohttp-session/blob/master/aiohttp_session/redis_storage.py#L60
- https://github.com/advisories/GHSA-fpwp-69xv-c67f
- https://nvd.nist.gov/vuln/detail/CVE-2018-1000519
- https://github.com/aio-libs/aiohttp-session/commit/6b7864004d3442dbcfaf8687f63262c1c629f569
- https://github.com/aio-libs/aiohttp-session
- https://github.com/pypa/advisory-database/tree/main/vulns/aiohttp-session/PYSEC-2018-80.yaml
- CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N- Weakness (CWE)
CWE-384- Platform
- Python (PyPI)
- Package
aiohttp-session- Disclosed
- 26.06.2018
- Updated
- 11.10.2026 12:19
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2018-80 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-fpwp-69xv-c67f - CC BY 4.0
Vulnerability history: aiohttp-session
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 2
- First → latest
- 06.2018 12.2018
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 2
Disclosures per year
- 2018: 2
- 2019: 0
- 2020: 0
- 2021: 0
- 2022: 0
- 2023: 0
- 2024: 0
- 2025: 0
- 2026: 0
-
aiohttp-session Session Fixation vulnerability this entry
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