CVE-2026-55221 Boruta: OAuth credentials exposed in Boruta business logs
Attackers with log access can steal OAuth tokens and credentials from Boruta server logs, enabling unauthorized access until expiration.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-55221?
CVE-2026-55221 is a medium-severity vulnerability in malach-it boruta-server, published on 2 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Boruta is a standalone authorization server that aims to implement OAuth 2.0 and Openid Connect up to decentralized identity specifications. Prior to version 0.10.0, Boruta logged sensitive OAuth and OpenID Connect values in business event logs. Logged values could include access tokens, refresh tokens, authorization codes, agent tokens, direct-post codes, ID tokens, VP tokens, and tokens submitted to introspection or revocation endpoints. An attacker with access to Boruta logs, log aggregation systems, or the administration log viewer could recover these credentials and use them until expiration or revocation. This issue has been patched in version 0.10.0.
Weakness: CWE-532
Which versions are affected by CVE-2026-55221?
How do I fix CVE-2026-55221?
No fix has been published for CVE-2026-55221 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-55221 being exploited?
There is no known exploitation of CVE-2026-55221 in the wild and no public exploit code.
Sources
Also known as GHSA-pqwf-v25h-4874.