CVE-2026-55221CWE-532

CVE-2026-55221

Medium · published September 2, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
40.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00482 · 40.6th percentile
Weakness
CWE-532 · Insertion of Sensitive Information into Log File
Published
2026-09-02T22:20Z
References (3)
EPSS history
Timeline
  • 04 SEP 03:42Z
    EPSS moved — → 0%
    epss
  • 02 SEP 17:28Z
    Boruta: OAuth credentials exposed in Boruta business logs
    cvelistv5