GHSA-5pgf-h923-m958

Suggest an improvement
Source
https://github.com/advisories/GHSA-5pgf-h923-m958
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-5pgf-h923-m958/GHSA-5pgf-h923-m958.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-5pgf-h923-m958
Aliases
Published
2026-03-24T16:59:58Z
Modified
2026-03-25T21:18:57Z
Severity
  • 2.7 (Low) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U CVSS Calculator
Summary
Craft CMS may expose private assets through anonymous "generate transform" calls via transform URL
Details

Summary

An unauthenticated user can call assets/generate-transform with a private assetId, receive a valid transform URL, and fetch transformed image bytes.

The endpoint is anonymous and does not enforce per-asset authorization before returning the transform URL.

Details

Root cause:

  • Anonymous endpoint accepts user-controlled asset reference.
  • It creates and returns a transform URL for that asset without checking access rights.
  • If the transform output is reachable, guest users can read content derived from private assets.

Who is impacted:

  • Installations where private source assets can be transformed and transform URLs are reachable.

Security consequence:

  • Anonymous users can obtain content derived from private assets without authentication.

Resources

https://github.com/craftcms/cms/commit/7290d91639e

Database specific 
{
    "cwe_ids": [
        "CWE-639",
        "CWE-862"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-24T16:59:58Z",
    "nvd_published_at": "2026-03-24T18:16:10Z",
    "severity": "LOW"
}
References

Affected packages

Packagist / craftcms/cms

Package

Name
craftcms/cms
Purl
pkg:composer/craftcms/cms

Affected ranges

Type
ECOSYSTEM
Events
Introduced
5.0.0-RC1
Fixed
5.9.14

Affected versions

5.*
5.0.0-RC1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.0.5
5.0.6
5.1.0
5.1.1
5.1.2
5.1.3
5.1.4
5.1.5
5.1.6
5.1.7
5.1.8
5.1.9
5.1.10
5.2.0-beta.1
5.2.0-beta.2
5.2.0-beta.3
5.2.0-beta.4
5.2.0-beta.5
5.2.0-beta.6
5.2.0
5.2.1
5.2.2
5.2.3
5.2.4
5.2.4.1
5.2.5
5.2.6
5.2.7
5.2.8
5.2.9
5.2.10
5.3.0-beta.1
5.3.0-beta.2
5.3.0
5.3.0.1
5.3.0.2
5.3.0.3
5.3.1
5.3.2
5.3.3
5.3.4
5.3.5
5.3.6
5.4.0
5.4.0.1
5.4.1
5.4.2
5.4.3
5.4.4
5.4.5
5.4.5.1
5.4.6
5.4.7
5.4.7.1
5.4.8
5.4.9
5.4.10
5.4.10.1
5.5.0
5.5.0.1
5.5.1
5.5.1.1
5.5.2
5.5.3
5.5.4
5.5.5
5.5.6
5.5.6.1
5.5.7
5.5.8
5.5.9
5.5.10
5.6.0
5.6.0.1
5.6.0.2
5.6.1
5.6.2
5.6.3
5.6.4
5.6.5
5.6.5.1
5.6.6
5.6.7
5.6.8
5.6.9
5.6.9.1
5.6.10
5.6.10.1
5.6.10.2
5.6.11
5.6.12
5.6.13
5.6.14
5.6.15
5.6.16
5.6.17
5.7.0-beta.1
5.7.0-beta.2
5.7.0
5.7.1
5.7.1.1
5.7.2
5.7.3
5.7.4
5.7.5
5.7.6
5.7.7
5.7.8
5.7.8.1
5.7.8.2
5.7.9
5.7.10
5.7.11
5.8.0
5.8.1
5.8.2
5.8.3
5.8.4
5.8.5
5.8.6
5.8.7
5.8.8
5.8.9
5.8.10
5.8.11
5.8.12
5.8.13
5.8.13.1
5.8.13.2
5.8.14
5.8.15
5.8.16
5.8.17
5.8.18
5.8.19
5.8.20
5.8.21
5.8.22
5.8.23
5.9.0-beta.1
5.9.0-beta.2
5.9.0
5.9.1
5.9.2
5.9.3
5.9.4
5.9.5
5.9.6
5.9.7
5.9.8
5.9.9
5.9.10
5.9.11
5.9.12
5.9.13

Database specific

last_known_affected_version_range 
"<= 5.9.13"
source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-5pgf-h923-m958/GHSA-5pgf-h923-m958.json"

Packagist / craftcms/cms

Package

Name
craftcms/cms
Purl
pkg:composer/craftcms/cms

Affected ranges

Type
ECOSYSTEM
Events
Introduced
4.0.0-RC1
Fixed
4.17.8

Affected versions

4.*
4.0.0-RC1
4.0.0-RC2
4.0.0-RC3
4.0.0
4.0.0.1
4.0.1
4.0.2
4.0.3
4.0.4
4.0.5
4.0.5.1
4.0.5.2
4.0.6
4.1.0
4.1.0.1
4.1.0.2
4.1.1
4.1.2
4.1.3
4.1.4
4.1.4.1
4.2.0
4.2.0.1
4.2.0.2
4.2.1
4.2.1.1
4.2.2
4.2.3
4.2.4
4.2.5
4.2.5.1
4.2.5.2
4.2.6
4.2.7
4.2.8
4.3.0
4.3.1
4.3.2
4.3.2.1
4.3.3
4.3.4
4.3.5
4.3.6
4.3.6.1
4.3.7
4.3.7.1
4.3.8
4.3.8.1
4.3.8.2
4.3.9
4.3.10
4.3.11
4.4.0-beta.1
4.4.0-beta.2
4.4.0-beta.3
4.4.0-beta.4
4.4.0-beta.5
4.4.0-beta.6
4.4.0-beta.7
4.4.0
4.4.1
4.4.2
4.4.3
4.4.4
4.4.5
4.4.6
4.4.6.1
4.4.7
4.4.7.1
4.4.8
4.4.9
4.4.10
4.4.10.1
4.4.11
4.4.12
4.4.13
4.4.14
4.4.15
4.4.16
4.4.16.1
4.4.17
4.5.0-beta.1
4.5.0-beta.2
4.5.0
4.5.1
4.5.2
4.5.3
4.5.4
4.5.5
4.5.6
4.5.6.1
4.5.7
4.5.8
4.5.9
4.5.10
4.5.11
4.5.11.1
4.5.12
4.5.13
4.5.14
4.5.15
4.6.0-RC1
4.6.0
4.6.1
4.7.0
4.7.1
4.7.2
4.7.2.1
4.7.3
4.7.4
4.8.0
4.8.1
4.8.2
4.8.3
4.8.4
4.8.5
4.8.6
4.8.7
4.8.8
4.8.9
4.8.10
4.8.11
4.9.0
4.9.1
4.9.2
4.9.3
4.9.4
4.9.5
4.9.6
4.9.7
4.10.0-beta.1
4.10.0-beta.2
4.10.0
4.10.1
4.10.2
4.10.3
4.10.4
4.10.5
4.10.6
4.10.7
4.10.8
4.11.0
4.11.0.1
4.11.0.2
4.11.1
4.11.2
4.11.3
4.11.4
4.11.5
4.12.0
4.12.1
4.12.2
4.12.3
4.12.4
4.12.4.1
4.12.5
4.12.6
4.12.6.1
4.12.7
4.12.8
4.12.9
4.13.0
4.13.1
4.13.1.1
4.13.2
4.13.3
4.13.4
4.13.5
4.13.6
4.13.7
4.13.8
4.13.9
4.13.10
4.14.0
4.14.0.1
4.14.0.2
4.14.1
4.14.2
4.14.3
4.14.4
4.14.5
4.14.6
4.14.7
4.14.8
4.14.8.1
4.14.9
4.14.10
4.14.11
4.14.11.1
4.14.12
4.14.13
4.14.14
4.14.15
4.15.0-beta.1
4.15.0-beta.2
4.15.0
4.15.0.1
4.15.0.2
4.15.1
4.15.2
4.15.3
4.15.4
4.15.5
4.15.6
4.15.6.1
4.15.6.2
4.15.7
4.16.0
4.16.1
4.16.2
4.16.3
4.16.4
4.16.5
4.16.6
4.16.6.1
4.16.7
4.16.8
4.16.9
4.16.9.1
4.16.10
4.16.11
4.16.12
4.16.13
4.16.14
4.16.15
4.16.16
4.16.17
4.16.18
4.16.19
4.17.0-beta.1
4.17.0-beta.2
4.17.0
4.17.1
4.17.2
4.17.3
4.17.4
4.17.5
4.17.6
4.17.7

Database specific

last_known_affected_version_range 
"<= 4.17.7"
source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-5pgf-h923-m958/GHSA-5pgf-h923-m958.json"