CVE-2021-45890 json
basic/BasicAuthProvider.java in AuthGuard before 0.9.0 allows authentication via an inactive identifier.
published 2021-12-27 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-32606
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.8%
- EPSS 1.8% chance of exploitation in 30 days, percentile 78%
- public exploits
- 0
- none known
Summary
basic/BasicAuthProvider.java in AuthGuard before 0.9.0 allows authentication via an inactive identifier.
Patch / fix
- authguard_project authguard 0.9.0
- github.com/AuthGuard/AuthGuard@9783b11 commit
- github.com/AuthGuard/AuthGuard#181 pull request
Exploit prediction
1.80% chance of exploitation in the next 30 days, higher than 78% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-287 Improper Authentication
References
-
github.com
/AuthGuard/AuthGuard/commit/9783b1143da6576028de23e15a1f198b1f937b82
patch, third-party-advisory
-
github.com
/AuthGuard/AuthGuard/pull/181
patch, third-party-advisory
-
github.com
/AuthGuard/AuthGuard/compare/v0.8.0...v0.9.0
release-notes, third-party-advisory
-
github.com
/AuthGuard/AuthGuard/issues/166
issue-tracking, third-party-advisory
Sources
- CVE List CVE-2021-45890
- NVD CVE-2021-45890
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