CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NCVE-2024-26150
High (7.5) in linuxfoundation backstage backend-common. EPSS 0.8% chance of exploitation in the next 30 days. Fixed in @backstage/backend-common 0.19.10, 0.20.2, 0.21.1.
`@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.
Severity
- EPSS
- 0.8% chance of exploitation in the next 30 days; higher than 56% of CVEs (scores of 2026-10-31)
- CWE
- CWE-22
- Published
- Modified
- Record from
- the NVD, synced
Affected
- linuxfoundation:backstage_backend-common
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-2fc9-xpp8-2g9h | npm | @backstage/backend-common | >=0.21.0 <0.21.1 | 0.21.1 |
| GHSA-2fc9-xpp8-2g9h | npm | @backstage/backend-common | <0.19.10 | 0.19.10 |
| GHSA-2fc9-xpp8-2g9h | npm | @backstage/backend-common | >=0.20.0 <0.20.2 | 0.20.2 |
References
- https://github.com/backstage/backstage/commit/1ad2b1b61ebb430051f7d804b0cc7ebfe7922b6f
- https://github.com/backstage/backstage/commit/78f892b3a84d63de2ba167928f171154c447b717
- https://github.com/backstage/backstage/commit/edf65d7d31e027599c2415f597d085ee84807871
- https://github.com/backstage/backstage/security/advisories/GHSA-2fc9-xpp8-2g9h
- https://github.com/backstage/backstage/commit/1ad2b1b61ebb430051f7d804b0cc7ebfe7922b6f