CVE-2026-93336

High

Description

Missing authorization in the unit resources download route in Canonical Juju 4.0 through 4.0.15 allows a controller-authenticated principal (a unit agent, or a user with only login permission) to read any application's charm resource in any model, including container-registry credentials, via a crafted request naming an arbitrary unit.

SeverityHigh

CVSS7.1

Exploit probability—

ProductJuju

PublishedOct 22, 2026

First seenOct 22, 2026

Weakness typeCWE-862Missing authorization

How to fix

Update

Canonical Juju4.0.16 or later

Patches

github.com/juju/juju/pull/23360

Vendor advisories

github.com/juju/juju/security/advisories/GHSA-fp7x-6hq5-3c3w

Affected products

Product	Affected versions	Fixed in
Canonical Juju	4.0 ≤ v < 4.0.16	4.0.16

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