Dashboard / CVE-2026-106494

CVE-2026-106494

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 55/100
Published: 2026-10-06 Modified: 2026-10-22 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Interaction Integ. Impact

CVSS Vector Breakdown

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

Description

Backstage is an open framework for building developer portals. Prior to 0.17.8, the @backstage/backend-defaults package is affected by improper input validation in cloud storage url readers. An attacker with write access to a cloud storage bucket used by Backstage could craft object names that could collide with protected files in the output directory. In certain deployment configurations, this could lead to content injection. This issue is fixed in version 0.17.8.

Weakness Classification (2)

Affected Software (2)

VendorProductVersion
linuxfoundation backstage < 1.54.6
linuxfoundation backstage\/backend_defaults < 0.17.8

References & Advisories (3)

Bug Bounty Relevance

55 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

4.9 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N

EPSS — Exploitation Probability

0.31%
Raw Score 0.003060
Percentile 23.3%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00306
2026-10-28
0.00306

Intelligence Sources

nvd ref →

External Links