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TI-2018-15919 Aliases CVE-2018-1000519GHSA-fpwp-69xv-c67f

aio-libs aiohttp-session contains a Session Fixation vulnerability in load_session…

Priority LOW 31CWE-384Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Spoofing
Confidentiality · integrity · availability
None · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-384.

Summary

aio-libs aiohttp-session contains a Session Fixation vulnerability in load_session function for RedisStorage (see: https://github.com/aio-libs/aiohttp-session/blob/master/aiohttp_session/redis_storage.py#L42) 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).

Why it matters now

EPSS 0.01157 67th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed aiohttp-session (PyPI): 2.4.0

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
—aiohttp-session (PyPI)before 2.4.02.4.0Patch availableGHSA-fpwp-69xv-c67f
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • aiohttp-session (PyPI) Vendor— Affected before 2.4.0 Fixed in 2.4.0 Patch available GHSA-fpwp-69xv-c67f

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:aio-libs:aiohttp_session:*:*:*:*:*:*:*:*before 2.4.0Vulnerableaio-libs
  • cpe:2.3:a:aio-libs:aiohttp_session:*:*:*:*:*:*:*:* Versions before 2.4.0 Vulnerable ·aio-libs

Remediation

  • Fix · GHSA-fpwp-69xv-c67f aiohttp-session (PyPI) Fixed in 2.4.0 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-1000519
  2. 2026-10-03 Alias added: GHSA-fpwp-69xv-c67f

References

Exploit 1

Advisory 3

Other 3

  • TI-2018-16038 aio-libs aiohttp-session version 2.6.0 and earlier contains a Other/Unknown vulnerability… CVSS 3.1MEDIUM 6.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences