Detections
Analytics

SCA: security update for admidio/admidio (GHSA-p9w9-87c8-m235)

high Tenable Self-Hosted Container Security Plugin ID 440978

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - Admidio is an open-source user management solution. Prior to version 5.0.9, the SAML IdP implementation in
 Admidio's SSO module uses the AssertionConsumerServiceURL value directly from incoming SAML AuthnRequest
 messages as the destination for the SAML response, without validating it against the registered ACS URL
 (smc_acs_url) stored in the database for the corresponding service provider client. An attacker who knows
 the Entity ID of a registered SP client can craft a SAML AuthnRequest with an arbitrary
 AssertionConsumerServiceURL, causing the IdP to send the signed SAML response -- containing user identity
 attributes (login name, email, roles, profile fields) -- to an attacker-controlled URL. This issue has
 been patched in version 5.0.9. (CVE-2026-41670)

Solution

Update the admidio/admidio library and its related packages to version 5.0.9 or later.

See Also

https://github.com/advisories/GHSA-p9w9-87c8-m235

Plugin Details

Severity: High

ID: 440978

Version: Revision 1.9

Type: Local

Family: SCA Checks

Published: 4/30/2026

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3.9

Percentile: 52.77

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 8.5

Temporal Score: 6.3

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:P/A:N

CVSS Score Source: CVE-2026-41670

CVSS v3

Risk Factor: High

Base Score: 8.2

Temporal Score: 7.1

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 4/29/2026

Vulnerability Publication Date: 4/29/2026

Reference Information

CVE: CVE-2026-41670