GHSA-wg36-wvj6-r67p

Source

https://github.com/advisories/GHSA-wg36-wvj6-r67p

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-wg36-wvj6-r67p/GHSA-wg36-wvj6-r67p.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-wg36-wvj6-r67p

Aliases

Downstream

CGA (2)

MINI (2)

Published

2026-04-14T20:03:08Z

Modified

2026-09-10T03:50:44Z

Severity

7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator

Summary

Composer has a command injection via malicious perforce repository

Details

Impact

The Perforce::generateP4Command() method constructed shell commands by interpolating user-supplied Perforce connection parameters (port, user, client) without proper escaping. An attacker controlling a repository configuration in a malicious composer.json declaring a Perforce VCS repository could inject arbitrary commands through these values, leading to command execution in the context of the user running Composer. Composer would execute these injected commands even if Perforce is not installed.

VCS repositories are only loaded from the root composer.json file located in the directory you execute Composer commands in and from the composer config directory (e.g. ~/.config/composer/composer.json). So this vulnerability cannot be exploited through composer.json files of packages installed as dependencies.

You are at risk of command execution if you run Composer commands on untrusted projects with attacker supplied composer.json files, regardless of whether you or any of your dependencies use Perforce.

Patches

Fixed in Composer 2.2.27 (2.2 LTS) and 2.9.6 (mainline)

Workarounds

Carefully inspect composer.json files before running Composer on them. Verify that Perforce-related fields contain valid values.
Only run Composer commands on projects from trusted sources.

Database specific

{
    "cwe_ids":  [
        "CWE-20",
        "CWE-78"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-04-14T20:03:08Z",
    "nvd_published_at":  "2026-04-15T21:17:27Z",
    "severity":  "HIGH"
}

References

Affected packages

Packagist / composer/composer

Package

Name: composer/composer
Purl: pkg:composer/composer/composer

Affected ranges

Type: ECOSYSTEM
Events: Introduced

2.3.0

Fixed

2.9.6

Affected versions

2.*

2.3.0

2.3.1

2.3.2

2.3.3

2.3.4

2.3.5

2.3.6

2.3.7

2.3.8

2.3.9

2.3.10

2.4.0-RC1

2.4.0

2.4.1

2.4.2

2.4.3

2.4.4

2.5.0

2.5.1

2.5.2

2.5.3

2.5.4

2.5.5

2.5.6

2.5.7

2.5.8

2.6.0

2.6.1

2.6.2

2.6.3

2.6.4

2.6.5

2.6.6

2.7.0

2.7.1

2.7.2

2.7.3

2.7.4

2.7.5

2.7.6

2.7.7

2.7.8

2.7.9

2.8.0

2.8.1

2.8.2

2.8.3

2.8.4

2.8.5

2.8.6

2.8.7

2.8.8

2.8.9

2.8.10

2.8.11

2.8.12

2.9.0-RC1

2.9.0

2.9.1

2.9.2

2.9.3

2.9.4

2.9.5

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-wg36-wvj6-r67p/GHSA-wg36-wvj6-r67p.json"

Packagist / composer/composer

Package

Name: composer/composer
Purl: pkg:composer/composer/composer

Affected ranges

Type: ECOSYSTEM
Events: Introduced

1.0.0

Fixed

2.2.27

Affected versions

1.*

1.0.0

1.0.1

1.0.2

1.0.3

1.1.0-RC

1.1.0

1.1.1

1.1.2

1.1.3

1.2.0-RC

1.2.0

1.2.1

1.2.2

1.2.3

1.2.4

1.3.0-RC

1.3.0

1.3.1

1.3.2

1.3.3

1.4.0

1.4.1

1.4.2

1.4.3

1.5.0

1.5.1

1.5.2

1.5.3

1.5.4

1.5.5

1.5.6

1.6.0-RC

1.6.0

1.6.1

1.6.2

1.6.3

1.6.4

1.6.5

1.7.0-RC

1.7.0

1.7.1

1.7.2

1.7.3

1.8.0

1.8.1

1.8.2

1.8.3

1.8.4

1.8.5

1.8.6

1.9.0

1.9.1

1.9.2

1.9.3

1.10.0-RC

1.10.0

1.10.1

1.10.2

1.10.3

1.10.4

1.10.5

1.10.6

1.10.7

1.10.8

1.10.9

1.10.10

1.10.11

1.10.12

1.10.13

1.10.14

1.10.15

1.10.16

1.10.17

1.10.18

1.10.19

1.10.20

1.10.21

1.10.22

1.10.23

1.10.24

1.10.25

1.10.26

1.10.27

1.10.28

2.*

2.0.0-alpha1

2.0.0-alpha2

2.0.0-alpha3

2.0.0-RC1

2.0.0-RC2

2.0.0

2.0.1

2.0.2

2.0.3

2.0.4

2.0.5

2.0.6

2.0.7

2.0.8

2.0.9

2.0.10

2.0.11

2.0.12

2.0.13

2.0.14

2.1.0-RC1

2.1.0

2.1.1

2.1.2

2.1.3

2.1.4

2.1.5

2.1.6

2.1.7

2.1.8

2.1.9

2.1.10

2.1.11

2.1.12

2.1.14

2.2.0-RC1

2.2.0

2.2.1

2.2.2

2.2.3

2.2.4

2.2.5

2.2.6

2.2.7

2.2.8

2.2.9

2.2.10

2.2.11

2.2.12

2.2.13

2.2.14

2.2.15

2.2.16

2.2.17

2.2.18

2.2.19

2.2.20

2.2.21

2.2.22

2.2.23

2.2.24

2.2.25

2.2.26

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-wg36-wvj6-r67p/GHSA-wg36-wvj6-r67p.json"