Dashboard / CVE-2026-106490

CVE-2026-106490

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 63/100
Published: 2026-10-06 Modified: 2026-10-22 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Interaction Conf. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: None
S: Unchanged
C: High
I: None
A: None

Description

Backstage is an open framework for building developer portals. Prior to 2.2.4, the @backstage/plugin-techdocs-backend package is affected by improper input validation in techdocs static content requests. When using the Azure Blob Storage provider, an authenticated Backstage user may be able to read restricted TechDocs content when entity-level permissions are enabled. Deployments that intentionally disable the default backend authentication policy may have broader exposure. This issue is fixed in version 2.2.4.

Weakness Classification (2)

Affected Software (2)

VendorProductVersion
linuxfoundation backstage < 1.54.6
linuxfoundation backstage\/plugin-techdocs-backend < 2.2.4

References & Advisories (3)

Bug Bounty Relevance

63 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

6.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS — Exploitation Probability

0.37%
Raw Score 0.003690
Percentile 30.8%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00369
2026-10-28
0.00369

Intelligence Sources

nvd ref →

External Links