CVE-2026-81505 Convoy: Cross-Tenant Source IDOR Leaks Plaintext Message Broker Credentials
Authenticated users can access other tenants' webhook source records and plaintext message broker credentials by manipulating source IDs.
- 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-2026-81505?
CVE-2026-81505 is a high-severity missing authorization vulnerability in frain-dev convoy, published on 18 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Convoy is a cloud native webhooks gateway. Prior to 26.6.8, Convoy's GET /api/v1/projects/{projectID}/sources/{sourceID} endpoint authorizes access to the project in the URL, but Handler.GetSource calls sources.Service.FindSourceByID() and fetches the Source only by sourceID without confirming that its ProjectID matches the authorized project. An authenticated user or project-scoped API key holder can substitute another tenant's Source identifier and receive that Source's complete record, including unredacted AMQP, Kafka, SQS, or Google PubSub credentials. The list endpoint remains project-scoped; the single-item Source lookup is affected. This issue is fixed in version 26.6.8.
Weakness: CWE-639
Which versions are affected by CVE-2026-81505?
3 open source packages ship an affected version, including github.com/frain-dev/convoy.
| Package | Affected | Fixed in |
|---|---|---|
github.com/frain-dev/convoy Go | All versions | 0.9.3-0.20260724092134-1cc67cd16fb1 |
github.com/frain-dev/convoy Go | All versions | 0.9.3-0.20260724092134-1cc67cd16fb1 |
github.com/frain-dev/convoy Go | All versions | 0.9.3-0.20260724092134-1cc67cd16fb1 |
How do I fix CVE-2026-81505?
Upgrade github.com/frain-dev/convoy to 0.9.3-0.20260724092134-1cc67cd16fb1 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-81505 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-81505 exists.
Sources
Also known as GHSA-p5vg-v7mj-f6q4, GO-2026-6523.