8.7

CVE-2024-26150: backstage Path Traversal

CVSS: 8.7v3.1HighAnalyzed
AliasesGHSA-2fc9-xpp8-2g9h
Published 23-02-2024Last modified 01-08-2024
Open JSON

Vulnerability summary

CVE-2024-26150 is a high (CVSS 8.7) Path Traversal vulnerability in backstage. EPSS estimates a 0.80% chance of exploitation in the next 30 days, higher than 55.9% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.7/10
010
High · v3.1 (CVE.org)
EPSS score
0.80%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 23-02-2024
    PublishedVulnerability first disclosed.
  2. 01-08-2024
    Last modifiedVulnerability information updated.

Description

`@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.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.80%

Chance of exploitation in the next 30 days

Percentile

56%

Versus all other CVEs

30-day change

0.00 pp

From 0.80% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.80%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

@backstage1 product
  • backend-common≥ 0.21.0, < 0.21.1 | < 0.19.10 | ≥ 0.20.0, < 0.20.2
Backstage1 product
  • backstage= 0.21.0 | < 0.19.10 | ≥ 0.20.0, < 0.20.2
Linuxfoundation1 product

3 vendors · 3 products

References

6 links