Path Traversal in Backstage
CVE-2024-26150
`@backstage/backend-common` is a common functionality library for backends for Backstage, an open platform for building developer portals. In `@backstage/backend-common` prior to versions 0.21.1, 0.20.2, and 0.19.10, paths checks with the `resolveSafeChildPath` utility were not exhaustive enough, leading to risk of path traversal vulnerabilities if symlinks can be injected by attackers. This issue is patched in `@backstage/backend-common` versions 0.21.1, 0.20.2, and 0.19.10.
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.008 (52.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N.
Affected products
- Backstage — versions = 0.21.0, < 0.19.10, >= 0.20.0, < 0.20.2
- Linuxfoundation Backstage_backend-common — versions 0.21.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
Frequently asked questions
- What is CVE-2024-26150?
- CVE-2024-26150 is a high-severity vulnerability in Backstage, classified under Path Traversal. CVSS score: 8.7/10. Published 2024-02-23.
- How severe is CVE-2024-26150?
- High severity. CVSS v3 base score is 8.7 out of 10.
- Is CVE-2024-26150 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.