Detections
Analytics

SCA: security update for contao/contao, contao/core-bundle (GHSA-3mr9-p497-58f6)

low Tenable Self-Hosted Container Security Plugin ID 445760

Description

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

 - Contao is an Open Source CMS. In versions 4.13.40 through 5.3.46 and 5.7.0-RC1 through 5.7.6, the crawler
 leaks auth credentials to external hosts. Contao's crawler tries to prevent confidential HTTP client
 options from being sent to external domains by creating a scoped client: full options for root page
 origins, cleaned options for everything else. The cleaner removes Cookie and Authorization headers, but it
 removes the non-Symfony option names basic_auth and bearer_auth instead of Symfony HttpClient's real
 auth_basic and auth_bearer options. When contao.crawl.default_http_client_options contains Basic or Bearer
 authentication for a protected staging/production site, those credentials remain in the "clean" client
 used for external links or configured additional URIs. An attacker who can get an external URL crawled,
 for example through a link on a crawled page while the broken-link checker is enabled, can receive the
 crawler credentials. This issue has been fixed in versions 5.3.47 and 5.7.7. (CVE-2026-55824)

Solution

Update the contao/contao library and its related packages to version 5.3.47 or later.

See Also

https://github.com/advisories/GHSA-3mr9-p497-58f6

Plugin Details

Severity: Low

ID: 445760

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 8/7/2026

Updated: 8/7/2026

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

Vendor

Vendor Severity: Low

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

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

CVSS Score Source: CVE-2026-55824

CVSS v3

Risk Factor: Low

Base Score: 2.6

Temporal Score: 2.3

Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/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: 8/6/2026

Vulnerability Publication Date: 7/31/2026

Reference Information

CVE: CVE-2026-55824

cwe: CWE-200