Staging Environment: Content and features may be unstable or change without notice.
Advisory details: gitlab / gem/camaleon_cms/CVE-2026-1776
Advisory ID gitlab/gem/camaleon_cms/CVE-2026-1776
Aliases CVE-2026-1776
GHSA-jw5g-f64p-6x78
Summary Camaleon CMS vulnerable to Path Traversal through AWS S3 uploader implementation Camaleon CMS versions 2.4.5.0 through 2.9.1, prior to commit f54a77e, contain a path traversal vulnerability in the AWS S3 uploader implementation that allows authenticated users to read arbitrary files from the web server’s filesystem. The issue occurs in the download_private_file functionality when the application is configured to use the CamaleonCmsAwsUploader backend. Unlike the local uploader implementation, the AWS uploader does not validate file paths with valid_folder_path?, allowing directory traversal sequences to be supplied via the file parameter. As a result, any authenticated user, including low-privileged registered users, can access sensitive files such as /etc/passwd. This issue represents a bypass of the incomplete fix for CVE-2024-46987 and affects deployments using the AWS S3 storage backend.
Status Published
Exploitability 0.5
Weighted Severity 0.0
Risk
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (3)
CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3.1 https://gitlab.com/gitlab-org/advisories-community/-/blob/main/gem/camaleon_cms/CVE-2026-1776.yml
Reference id Reference type URL
https://camaleon.website
https://github.com/rubysec/ruby-advisory-db/blob/master/gems/camaleon_cms/CVE-2026-1776.yml
https://nvd.nist.gov/vuln/detail/CVE-2026-1776
1127 Bug https://github.com/owen2345/camaleon-cms/pull/1127
camaleon-cms-aws-uploader-authenticated-path-traversal-arbitrary-file-read Advisory https://www.vulncheck.com/advisories/camaleon-cms-aws-uploader-authenticated-path-traversal-arbitrary-file-read
f54a77e2a7be601215ea1b396038c589a0cab9af Other https://github.com/owen2345/camaleon-cms/commit/f54a77e2a7be601215ea1b396038c589a0cab9af
GHSA-jw5g-f64p-6x78 https://github.com/advisories/GHSA-jw5g-f64p-6x78
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Found at https://gitlab.com/gitlab-org/advisories-community/-/blob/main/gem/camaleon_cms/CVE-2026-1776.yml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-03-10T14:57:09Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2026/1xxx/CVE-2026-1776.json

Source Advisory: vulnrichment/CVE-2026-1776

View SSVC decision tree 
[{'Exploitation': 'none'},
 {'Automatable': 'no'},
 {'Technical Impact': 'partial'},
 {'Mission Prevalence': 'minimal'},
 {'Public Well-being Impact': 'material'},
 {'Mission & Well-being': 'medium'}]