SimpleSAMLphp Information Disclosure vulnerability

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

5.9 · CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS

No dated EPSS signal available.

As published by the source; long descriptions are shortened.

Background SimpleSAMLphp 1.17 includes a preview of the new user interface to be included in the future version 2.0. This new user interface can be enabled by setting the usenewui configuration option to true, and it includes a new admin interface in a module called admin, which can be disabled. Description The new admin interface includes a way to view information about the host where SimpleSAMLphp is installed, by means of the phpinfo() PHP function. An endpoint that exposes the output of that function is included in the admin module for easier debugging. The aforementioned endpoint had no checks for administrator privileges. This would allow any individual to access the given endpoint without authenticating, gathering information about the affected system. Affected versions All SimpleSAMLphp 1.17 versions up to 1.17.7 are affected, provided that the new, experimental use interface is enabled, together with the new admin module. Impact An attacker could leverage this issue by…

Published by the source

28 May 2024, 21:26 UTC

Last modified by the source

28 May 2024, 21:26 UTC

Source last checked

26 Oct 2026, 14:25 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-ppm4-r2vc-pg74

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: GHSA-ppm4-r2vc-pg74

Advisory: SimpleSAMLphp Information Disclosure vulnerability
IDs: GHSA-ppm4-r2vc-pg74
Record: https://patchnext.com/advisories/ghsa-ppm4-r2vc-pg74 (revision 1, source checked 26 Oct 2026, 14:25 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 5.9)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: simplesamlphp/simplesamlphp 1.17.8. A vendor fix does not mean a deployment is fixed.

## Affected components
- Packagist simplesamlphp/simplesamlphp: affected >= 1.17.0, < 1.17.8; fixed in 1.17.8

## Suggested inspection (read-only)
- Packagist simplesamlphp/simplesamlphp: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on simplesamlphp/simplesamlphp.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-ppm4-r2vc-pg74 (GitHub-reviewed advisory GHSA-ppm4-r2vc-pg74 lists affected ranges: Packagist simplesamlphp/simplesamlphp >=1.17.0 <1.17.8)

Commands are suggestions: review each one before running it.