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Advisory record · GHSA-7wh8-jrq7-p27f

SimpleSAMLphp exposes credentials in session storage

CVSS 5.3 Medium

Published by the GitHub Advisory Database at 28 May 2024, 18:28 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
simplesamlphp/simplesamlphpPackagist>=1.16.0, <1.16.31.16.3
Identifiers
GHSA-7wh8-jrq7-p27f · PKSA-ytw1-2sfw-nwys
Weakness (CWE)
CWE-522
Tags
Published
28 May 2024
Updated
3 Dec 2024

Machine-written summary

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

SimpleSAMLphp versions 1.16.0 up to but not including 1.16.3 store user credentials in the session when the SAML ECP profile is disabled on an Identity Provider that has metadata for ECP-capable entities. An attacker with access to the session store or its backups, such as an administrator or someone with access to those systems, could read the stored usernames and passwords. Upgrade to SimpleSAMLphp 1.16.3.

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
5.3 Medium 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/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.