CVE-2026-25538 Devtron Attributes API Unauthorized Access Leading to API Token Signing Key Leakage
Low-privileged users can access an API endpoint to leak the signing key, allowing them to forge tokens and gain full control over the Devtron platform and Kubernetes cluster.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-25538?
CVE-2026-25538 is a high-severity missing authorization vulnerability in devtron-labs devtron, published on 4 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Devtron is an open source tool integration platform for Kubernetes. In version 2.0.0 and prior, a vulnerability exists in Devtron's Attributes API interface, allowing any authenticated user (including low-privileged CI/CD Developers) to obtain the global API Token signing key by accessing the /orchestrator/attributes?key=apiTokenSecret endpoint. After obtaining the key, attackers can forge JWT tokens for arbitrary user identities offline, thereby gaining complete control over the Devtron platform and laterally moving to the underlying Kubernetes cluster. This issue has been patched via commit d2b0d26.
Weakness: CWE-862
Which versions are affected by CVE-2026-25538?
3 open source packages ship an affected version, including github.com/devtron-labs/devtron. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
github.com/devtron-labs/devtron Go | All versions | None |
github.com/devtron-labs/devtron Go | All versions to 2.0.0 | None |
github.com/devtron-labs/devtron Go | All versions to 2.0.0 | None |
Products include Devtron Devtron.
How do I fix CVE-2026-25538?
Apply the vendor's patch.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-25538 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-25538 exists.
Other vulnerabilities in devtron-labs devtron
Sources
Also known as GHSA-8wpc-j9q9-j5m2, GO-2026-4416.