Path Traversal Affecting @backstage/backend-common package, versions <0.19.10 >=0.20.0-next.0 <0.20.2 >=0.21.0-next.0 <0.21.1


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team

    Threat Intelligence

    EPSS
    0.05% (16th percentile)

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  • Snyk ID SNYK-JS-BACKSTAGEBACKENDCOMMON-6274391
  • published 25 Feb 2024
  • disclosed 23 Feb 2024
  • credit Unknown

How to fix?

Upgrade @backstage/backend-common to version 0.19.10, 0.20.2, 0.21.1 or higher.

Overview

@backstage/backend-common is a Common functionality library for Backstage backends

Affected versions of this package are vulnerable to Path Traversal due to insufficient symlink checks in the resolveSafeChildPath() function.

CVSS Scores

version 3.1
Expand this section

Snyk

8.1 high
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    None