Vulnerability · Published Sep 2, 2026 · Assigned by GitHub_M

CVE-2026-55221Boruta: OAuth credentials exposed in Boruta business logs

Medium 6.5

In plain English

A medium-severity sensitive data in logs in boruta-server from malach-it. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 42% of all known vulnerabilities).

Severity (CVSS 3.1)6.5Medium

Exploit odds (30 days)0.5%top 58.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

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.

Affected products (as reported)

Vendor	Product	Versions
malach-it	boruta-server	< 0.10.0

Weakness: CWE-532 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

References

https://github.com/malach-it/boruta-server/security/advisories/GHSA-pqwf-v25h-4874 x_refsource_CONFIRM
https://github.com/malach-it/boruta-server/commit/5f8362aea39fdc2c6d6cfe41c6519985f32ba9b5 x_refsource_MISC
https://github.com/malach-it/boruta-server/releases/tag/0.10.0 x_refsource_MISC