CVE-2026-24046

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Source
https://cve.org/CVERecord?id=CVE-2026-24046
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-24046.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-24046
Aliases
Published
2026-01-21T22:36:30.794Z
Modified
2026-01-28T05:47:15.169800Z
Severity
  • 7.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:L CVSS Calculator
Summary
Backstage has a Possible Symlink Path Traversal in Scaffolder Actions
Details

Backstage is an open framework for building developer portals. Multiple Scaffolder actions and archive extraction utilities were vulnerable to symlink-based path traversal attacks. An attacker with access to create and execute Scaffolder templates could exploit symlinks to read arbitrary files via the debug:log action by creating a symlink pointing to sensitive files (e.g., /etc/passwd, configuration files, secrets); delete arbitrary files via the fs:delete action by creating symlinks pointing outside the workspace, and write files outside the workspace via archive extraction (tar/zip) containing malicious symlinks. This affects any Backstage deployment where users can create or execute Scaffolder templates. This vulnerability is fixed in @backstage/backend-defaults versions 0.12.2, 0.13.2, 0.14.1, and 0.15.0; @backstage/plugin-scaffolder-backend versions 2.2.2, 3.0.2, and 3.1.1; and @backstage/plugin-scaffolder-node versions 0.11.2 and 0.12.3. Users should upgrade to these versions or later. Some workarounds are available. Follow the recommendation in the Backstage Threat Model to limit access to creating and updating templates, restrict who can create and execute Scaffolder templates using the permissions framework, audit existing templates for symlink usage, and/or run Backstage in a containerized environment with limited filesystem access.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/24xxx/CVE-2026-24046.json",
    "cwe_ids": [
        "CWE-22",
        "CWE-59"
    ]
}
References

Affected packages

Git / github.com/backstage/backstage

Affected ranges

Type
GIT
Repo
https://github.com/backstage/backstage
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
c641c147ab371a9a8a2f5f67fdb7cb9c97ef345d

Affected versions

Other
cli-old-cache-watch
hackweek-demo
release-2021-01-07
release-2021-01-08
release-2021-01-09
release-2021-01-14
release-2021-01-18
release-2021-01-20
release-2021-01-21
release-2021-01-28
release-2021-01-29
release-2021-02-01
release-2021-02-03
release-2021-02-05
release-2021-02-11
release-2021-02-16
release-2021-02-18
release-2021-02-23
release-2021-03-04
release-2021-03-09
release-2021-03-11
release-2021-03-16
release-2021-03-17
release-2021-03-18
release-2021-03-19
release-2021-03-25
release-2021-03-31
release-2021-04-08
release-2021-04-13
release-2021-04-15
release-2021-04-21
release-2021-04-22
release-2021-04-29
release-2021-05-04
release-2021-05-06
release-2021-05-10
release-2021-05-11
release-2021-05-12
release-2021-05-17
release-2021-05-20
release-2021-05-27
release-2021-05-31
release-2021-06-01
release-2021-06-03
release-2021-06-10
release-2021-06-17
release-2021-06-18
release-2021-06-21
release-2021-06-24
release-2021-06-28
release-2021-07-01
release-2021-07-07
release-2021-07-08
release-2021-07-14
release-2021-07-15
release-2021-07-16
release-2021-07-22
release-2021-07-29
release-2021-08-03
release-2021-08-05
release-2021-08-11
release-2021-08-12
release-2021-08-17
release-2021-08-19
release-2021-08-20
release-2021-08-26
release-2021-08-31
release-2021-09-02
release-2021-09-09
release-2021-09-14
release-2021-09-16
release-2021-09-17
release-2021-09-21
release-2021-09-23
release-2021-09-28
release-2021-09-30
release-2021-1-7
release-2021-10-04
release-2021-10-06
release-2021-10-07
release-2021-10-11
release-2021-10-13
release-2021-10-14
release-2021-10-16
release-2021-10-19
release-2021-10-21
release-2021-10-22
release-2021-10-28
release-2021-10-29
release-2021-11-08
release-2021-11-11
release-2021-11-12
release-2021-11-17
release-2021-11-18
release-2021-11-19
release-2021-11-25
release-2021-12-02
release-2021-12-07
release-2021-12-09
release-2021-12-10
release-2021-12-16
release-2021-12-23
release-2021-12-24
release-2021-12-30
release-2022-01-04
release-2022-01-13
release-2022-01-18
release-2022-01-20
release-2022-01-27
release-2021-01-14.*
release-2021-01-14.1
release-2021-01-21.*
release-2021-01-21.1
release-2021-03-11.*
release-2021-03-11.1
release-2021-03-31.*
release-2021-03-31.1
release-2021-04-22.*
release-2021-04-22.1
release-2021-05-12.*
release-2021-05-12.1
release-2021-05-20.*
release-2021-05-20.1
release-2021-06-10.*
release-2021-06-10.1
release-2021-06-17.*
release-2021-06-17.1
release-2021-06-21.*
release-2021-06-21.1
release-2021-07-14.*
release-2021-07-14.1
release-2021-10-29.*
release-2021-10-29.1
release-2021-11-11.*
release-2021-11-11.1
release-2021-11-17.*
release-2021-11-17.1
release-2022-01-20.*
release-2022-01-20.1
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Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-24046.json"