GHSA-jf56-v8jc-jcc5

Source

https://github.com/advisories/GHSA-jf56-v8jc-jcc5

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-jf56-v8jc-jcc5/GHSA-jf56-v8jc-jcc5.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-jf56-v8jc-jcc5

Aliases

CVE-2026-49738

Published

2026-06-12T19:09:04Z

Modified

2026-09-10T03:51:08Z

Severity

2.1 (Low) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N CVSS Calculator

Summary

TYPO3 CMS has Broken Access Control in its File Abstraction Layer

Details

Problem

The path allowance check in GeneralUtility::isAllowedAbsPath() performed a plain string prefix comparison without requiring a directory separator boundary, causing a path like /var/www/html-other/secret.yaml to be incorrectly accepted as valid when the project root was /var/www/html. Administrator users with access to the File Abstraction Layer were able to create new file storage definitions pointing to directories outside the project root, bypassing this path check.

Solution

Update to TYPO3 versions 10.4.57 ELTS, 11.5.51 ELTS, 12.4.46 ELTS, 13.4.31 LTS, 14.3.3 LTS that fix the problem described.

Credits

TYPO3 CMS thanks Wolfgang Klinger for reporting this issue, and to TYPO3 core & security team member Oliver Hader for fixing it.

Resources

TYPO3-CORE-SA-2026-016

Database specific

{
    "cwe_ids": [
        "CWE-22"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-06-12T19:09:04Z",
    "nvd_published_at": "2026-06-09T11:16:53Z",
    "severity": "LOW"
}

References

Affected packages

Packagist / typo3/cms-core

Package

Name: typo3/cms-core
Purl: pkg:composer/typo3/cms-core

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

10.4.57

Affected versions

v8.*

v8.7.7

v8.7.8

v8.7.9

v8.7.10

v8.7.11

v8.7.12

v8.7.13

v8.7.14

v8.7.15

v8.7.16

v8.7.17

v8.7.18

v8.7.19

v8.7.20

v8.7.21

v8.7.22

v8.7.23

v8.7.24

v8.7.25

v8.7.26

v8.7.27

v8.7.28

v8.7.29

v8.7.30

v8.7.31

v8.7.32

v9.*

v9.0.0

v9.1.0

v9.2.0

v9.2.1

v9.3.0

v9.3.1

v9.3.2

v9.3.3

v9.4.0

v9.5.0

v9.5.1

v9.5.2

v9.5.3

v9.5.4

v9.5.5

v9.5.6

v9.5.7

v9.5.8

v9.5.9

v9.5.10

v9.5.11

v9.5.12

v9.5.13

v9.5.14

v9.5.15

v9.5.16

v9.5.17

v9.5.18

v9.5.19

v9.5.20

v9.5.21

v9.5.22

v9.5.23

v9.5.24

v9.5.25

v9.5.26

v9.5.27

v9.5.28

v9.5.29

v9.5.30

v9.5.31

v10.*

v10.0.0

v10.1.0

v10.2.0

v10.2.1

v10.2.2

v10.3.0

v10.4.0

v10.4.1

v10.4.2

v10.4.3

v10.4.4

v10.4.5

v10.4.6

v10.4.7

v10.4.8

v10.4.9

v10.4.10

v10.4.11

v10.4.12

v10.4.13

v10.4.14

v10.4.15

v10.4.16

v10.4.17

v10.4.18

v10.4.19

v10.4.20

v10.4.21

v10.4.22

v10.4.23

v10.4.24

v10.4.25

v10.4.26

v10.4.27

v10.4.28

v10.4.29

v10.4.30

v10.4.31

v10.4.32

v10.4.33

v10.4.34

v10.4.36

v10.4.37

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-jf56-v8jc-jcc5/GHSA-jf56-v8jc-jcc5.json"

Packagist / typo3/cms-core

Package

Name: typo3/cms-core
Purl: pkg:composer/typo3/cms-core

Affected ranges

Type: ECOSYSTEM
Events: Introduced

11.0.0

Fixed

11.5.51

Affected versions

v11.*

v11.0.0

v11.1.0

v11.1.1

v11.2.0

v11.3.0

v11.3.1

v11.3.2

v11.3.3

v11.4.0

v11.5.0

v11.5.1

v11.5.2

v11.5.3

v11.5.4

v11.5.5

v11.5.6

v11.5.7

v11.5.8

v11.5.9

v11.5.10

v11.5.11

v11.5.12

v11.5.13

v11.5.14

v11.5.15

v11.5.16

v11.5.17

v11.5.18

v11.5.19

v11.5.20

v11.5.21

v11.5.22

v11.5.23

v11.5.24

v11.5.25

v11.5.26

v11.5.27

v11.5.28

v11.5.29

v11.5.30

v11.5.31

v11.5.32

v11.5.33

v11.5.34

v11.5.35

v11.5.36

v11.5.37

v11.5.38

v11.5.39

v11.5.40

v11.5.41

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-jf56-v8jc-jcc5/GHSA-jf56-v8jc-jcc5.json"

Packagist / typo3/cms-core

Package

Name: typo3/cms-core
Purl: pkg:composer/typo3/cms-core

Affected ranges

Type: ECOSYSTEM
Events: Introduced

12.0.0

Fixed

12.4.46

Affected versions

v12.*

v12.0.0

v12.1.0

v12.1.1

v12.1.2

v12.1.3

v12.2.0

v12.3.0

v12.4.0

v12.4.1

v12.4.2

v12.4.3

v12.4.4

v12.4.5

v12.4.6

v12.4.7

v12.4.8

v12.4.9

v12.4.10

v12.4.11

v12.4.12

v12.4.13

v12.4.14

v12.4.15

v12.4.16

v12.4.17

v12.4.18

v12.4.19

v12.4.20

v12.4.21

v12.4.22

v12.4.23

v12.4.24

v12.4.25

v12.4.26

v12.4.27

v12.4.28

v12.4.29

v12.4.30

v12.4.31

v12.4.32

v12.4.33

v12.4.34

v12.4.35

v12.4.36

v12.4.37

v12.4.38

v12.4.39

v12.4.40

v12.4.41

v12.4.42

v12.4.43

v12.4.44

v12.4.45

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-jf56-v8jc-jcc5/GHSA-jf56-v8jc-jcc5.json"

Packagist / typo3/cms-core

Package

Name: typo3/cms-core
Purl: pkg:composer/typo3/cms-core

Affected ranges

Type: ECOSYSTEM
Events: Introduced

13.0.0

Fixed

13.4.31

Affected versions

v13.*

v13.0.0

v13.0.1

v13.1.0

v13.1.1

v13.2.0

v13.2.1

v13.3.0

v13.3.1

v13.4.0

v13.4.1

v13.4.2

v13.4.3

v13.4.4

v13.4.5

v13.4.6

v13.4.7

v13.4.8

v13.4.9

v13.4.10

v13.4.11

v13.4.12

v13.4.13

v13.4.14

v13.4.15

v13.4.16

v13.4.17

v13.4.18

v13.4.19

v13.4.20

v13.4.21

v13.4.22

v13.4.23

v13.4.24

v13.4.25

v13.4.26

v13.4.27

v13.4.28

v13.4.29

v13.4.30

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-jf56-v8jc-jcc5/GHSA-jf56-v8jc-jcc5.json"

Packagist / typo3/cms-core

Package

Name: typo3/cms-core
Purl: pkg:composer/typo3/cms-core

Affected ranges

Type: ECOSYSTEM
Events: Introduced

14.0.0

Fixed

14.3.3

Affected versions

v14.*

v14.0.0

v14.0.1

v14.0.2

v14.1.0

v14.1.1

v14.2.0

v14.3.0

v14.3.1

v14.3.2

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-jf56-v8jc-jcc5/GHSA-jf56-v8jc-jcc5.json"