CVE-2026-30223 OliveTin: JWT Audience Validation Bypass in Local Key and HMAC Modes
Attackers can bypass authentication in OliveTin by using validly signed JWT tokens with incorrect audience claims when local key or HMAC modes are configured.
- 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-2026-30223?
CVE-2026-30223 is a high-severity authentication bypass vulnerability in OliveTin, published on 6 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
OliveTin gives access to predefined shell commands from a web interface. Prior to version 3000.11.1, when JWT authentication is configured using either "authJwtPubKeyPath" (local RSA public key) or "authJwtHmacSecret" (HMAC secret), the configured audience value (authJwtAud) is not enforced during token parsing. As a result, validly signed JWT tokens with an incorrect aud claim are accepted for authentication. This allows authentication using tokens intended for a different audience/service. This issue has been patched in version 3000.11.1.
Which versions are affected by CVE-2026-30223?
3 open source packages ship an affected version, including github.com/OliveTin/OliveTin. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
github.com/OliveTin/OliveTin Go | All versions | 0.0.0-20260304231339-e97d8ecbd8d6 |
github.com/OliveTin/OliveTin Go | All versions | 0.0.0-20260304231339-e97d8ecbd8d6 |
github.com/OliveTin/OliveTin Go | All versions | 0.0.0-20260304231339-e97d8ecbd8d6 |
Products include Olivetin Olivetin.
How do I fix CVE-2026-30223?
Upgrade github.com/OliveTin/OliveTin to 0.0.0-20260304231339-e97d8ecbd8d6 or later.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-30223 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-30223 exists.
Other vulnerabilities in OliveTin
- CVE-2026-27626 OliveTin: OS Command Injection via `password` argument type and webhook JSON extraction bypasses shell safety checks
- CVE-2026-31817 OliveTin's unsafe parsing of UniqueTrackingId can be used to write files
- CVE-2026-28342 OliveTin: Unauthenticated Denial of Service via Memory Exhaustion in PasswordHash API Endpoint
- CVE-2026-28789 OliveTin: Unauthenticated DoS via concurrent map writes in OAuth2 state handling
- CVE-2026-28790 OliveTin: Unauthenticated Action Termination via KillAction When Guests Must Login
Sources
Also known as GHSA-g962-2j28-3cg9, GO-2026-4622.