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Advisory record · GHSA-82vp-jr39-4j2j

TYPO3 Security Misconfiguration in Frontend Session Handling

CVSS 8.2 High

Published by the GitHub Advisory Database at 30 May 2024, 18:22 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
typo3/cms-corePackagist>=8.0.0, <8.7.27 || >=9.0.0, <9.5.88.7.27, 9.5.8
Identifiers
GHSA-82vp-jr39-4j2j · PKSA-kgft-67y3-84tv
Weakness (CWE)
CWE-488
Tags
Published
30 May 2024
Updated
5 Dec 2024

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

TYPO3 typo3/cms-core versions 8.0.0 up to 8.7.27 and 9.0.0 up to 9.5.8 are affected. During logout, frontend user session data is kept and turned into an anonymous session, so a later user of the same client application can access the previous user's session data. Upgrade to 8.7.27, 9.5.8, or later fixed versions. The source gives few further details.

Written 4 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
8.2 High 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N GitHub Advisory Database
  • CISA KEV Not listed.
  • EPSS No score.

Timeline

  1. 31 Oct 2026, 14:28 UTC First seen by agentprime
  2. 31 Oct 2026, 14:28 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.