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)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.008 (54.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 54.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
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
- github.com/backstage/backstage/security/advisories/GHSA-2fc9-xpp8-2g9h (Vendor Advisory)
- github.com/backstage/backstage/commit/1ad2b1b61ebb430051f7d804b0cc7ebfe7922b6f (Patch)
- github.com/backstage/backstage/commit/78f892b3a84d63de2ba167928f171154c447b717 (Patch)
- github.com/backstage/backstage/commit/edf65d7d31e027599c2415f597d085ee84807871 (Patch)
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.