CVE-2026-113682
HIGH
CVSS 7.4
Published: 2026-10-20
Modified: 2026-10-20
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Description
Networknt light-4j from 2.1.5 before 2.4.0 contains an authentication bypass vulnerability in BasicAuthHandler that allows unauthenticated attackers to log in as LDAP/AD-delegated users. Attackers can send a Basic Authorization header with a known username and empty password, triggering an unauthenticated LDAP bind that is accepted as successful authentication.
Quick Facts
| CVE ID | CVE-2026-113682 |
| CVSS Score | 7.4 |
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N |
| Published | 2026-10-20 |
| Exploited | No |
| CISA KEV | No |
| PoC | Not public |
References
- https://github.com/networknt/light-4j/blob/2.3.7/basic-auth/…
- https://github.com/networknt/light-4j/blob/2.3.7/ldap-util/s…
- https://github.com/networknt/light-4j/commit/54743badb34260b…
- https://github.com/networknt/light-4j/issues/2804
- https://github.com/networknt/light-4j/pull/2805
- https://github.com/networknt/light-4j/releases/tag/2.4.0
- https://www.vulncheck.com/advisories/networknt-light-4j-2.1.…