{"id":"CVE-2026-1776","aliases":["EUVD-2026-10361","GHSA-jw5g-f64p-6x78"],"status":"published","title":"Camaleon CMS AWS Uploader Authenticated Path Traversal Arbitrary File Read","description":"Camaleon CMS versions 2.4.5.0 through 2.9.0, 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.","severity":{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00831,"percentile":0.57836,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-22"],"published":"2026-03-09T21:08:06Z","modified":"2026-11-09T02:46:48Z","affected":[{"source":"ghsa","ecosystem":"RubyGems","package":"camaleon_cms","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.4.5.0"},{"last_affected":"2.9.1"}]}]},{"source":"osv","ecosystem":"RubyGems","package":"camaleon_cms","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.4.5.0"},{"last_affected":"2.9.1"}]}],"versions":["2.4.5","2.4.5.1","2.4.5.10","2.4.5.11","2.4.5.12","2.4.5.13","2.4.5.14","2.4.5.2","2.4.5.3","2.4.5.4","2.4.5.5","2.4.5.7","2.4.5.8","2.4.5.9","2.4.6.0","2.4.6.1","2.4.6.2","2.4.6.3","2.4.6.4","2.4.6.5","2.4.6.6","2.4.6.7","2.4.6.8","2.4.6.9","2.5.0","2.5.1","2.5.2","2.5.3","2.5.3.1","2.6.0","2.6.0.1","2.6.1","2.6.2","2.6.3","2.6.4","2.7.0","2.7.1","2.7.2","2.7.3","2.7.4","2.7.5","2.8.0","2.8.1","2.8.2","2.8.3","2.9.0","2.9.1"]}],"products":[{"vendor":"owen2345","product":"camaleon cms"},{"vendor":"tuzitio","product":"camaleon_cms"}],"references":[{"url":"https://github.com/owen2345/camaleon-cms/pull/1127","tags":["issue-tracking","patch","Issue Tracking","Patch","fix","web"]},{"url":"https://github.com/owen2345/camaleon-cms/commit/f54a77e2a7be601215ea1b396038c589a0cab9af","tags":["patch","Patch","fix","web"]},{"url":"https://camaleon.website/","tags":["product","Product","web"]},{"url":"https://www.vulncheck.com/advisories/camaleon-cms-aws-uploader-authenticated-path-traversal-arbitrary-file-read","tags":["third-party-advisory","Patch","Third Party Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-1776","tags":["advisory"]},{"url":"https://camaleon.website","tags":["web"]},{"url":"https://github.com/rubysec/ruby-advisory-db/blob/master/gems/camaleon_cms/CVE-2026-1776.yml","tags":["web"]},{"url":"https://github.com/advisories/GHSA-jw5g-f64p-6x78"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/1xxx/CVE-2026-1776.json","tags":["advisory"]},{"url":"https://github.com/owen2345/camaleon-cms","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-1776","title":"Camaleon CMS AWS Uploader Authenticated Path Traversal Arbitrary File Read","description":"Camaleon CMS versions 2.4.5.0 through 2.9.0, 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","published":"2026-03-09T21:08:06.6Z","modified":"2026-11-08T14:01:08.088Z","cvss":[{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"}],"cwes":["CWE-22"],"updated_at":"2026-11-08T15:43:32.737211Z"}],"euvd":[{"id":"EUVD-2026-10361","description":"Camaleon CMS versions 2.4.5.0 through 2.9.0, 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","published":"2026-03-09T21:08:06Z","modified":"2026-11-08T14:01:08Z","cvss":[{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-08T15:13:09.785497Z"}],"ghsa":[{"id":"GHSA-jw5g-f64p-6x78","title":"Camaleon CMS vulnerable to Path Traversal through AWS S3 uploader implementation","description":"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","published":"2026-03-10T09:31:46Z","modified":"2026-04-24T20:45:33Z","cvss":[{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:39:57.650091Z"}],"nvd":[{"id":"CVE-2026-1776","description":"Camaleon CMS versions 2.4.5.0 through 2.9.0, 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","published":"2026-03-10T07:38:01.95Z","modified":"2026-10-08T16:17:10.647Z","cvss":[{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:12:08.279852Z"}],"osv":[{"id":"CVE-2026-1776","title":"Camaleon CMS AWS Uploader Authenticated Path Traversal Arbitrary File Read","description":"Camaleon CMS versions 2.4.5.0 through 2.9.0, 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","published":"2026-03-09T21:08:06.6Z","modified":"2026-11-09T02:46:48.819224475Z","cvss":[{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-22"],"updated_at":"2026-11-09T03:16:24.800471Z"},{"id":"GHSA-jw5g-f64p-6x78","title":"Camaleon CMS vulnerable to Path Traversal through AWS S3 uploader implementation","description":"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","published":"2026-03-10T09:31:46Z","modified":"2026-05-05T15:58:51.709196Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"},{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T15:46:51.10002Z"}]}}