CWE-303Base2 in KEV

Incorrect Implementation of Authentication Algorithm

Draft in the CWE catalog · 107 CVEs mapped

107
CVEs mapped
2
In KEV
7.5
Median CVSS
What it is

The requirements for the product dictate the use of an established authentication algorithm, but the implementation of the algorithm is incorrect.

Recent examples
—none
CVE-2026-86589

CVE-2026-86589 - UNKNOWN Severity Vulnerability

Incorrect implementation of authentication algorithm vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.2. A flaw in the User Center login integration can cause a newly created external user session to omit its external identity, allowing subsequent requests to bypass central account suspension or deletion checks until the session expires or is revoked. Users are recommended to upgrade to version 2.0.3, which fixes the issue.

no explanation yet
0%
epss
7.5cvss
CVE-2026-89077

CVE-2026-89077 - HIGH Severity Vulnerability

Incorrect implementation of authentication algorithm vulnerability in Progress MOVEit Transfer (SFTP module). This issue affects MOVEit Transfer: before 2025.1.6 and from 2026.0.0 before 2026.0.4.

HIGHno explanation yet
0%
epss
7.5cvss
CVE-2026-104939

CVE-2026-104939 - HIGH Severity Vulnerability

Description NGINX Ingress Controller has a vulnerability when implementing an externalAuth policy for ingress. NGINX Ingress Controller may mishandle the HTTP response from an OAuth IdP and allow an attacker to acquire unauthenticated access to protected paths before the proper external authentication can happen. Impact This vulnerability may allow remote attackers unauthenticated access to protected paths. There is no control plane exposure; this is a data plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

HIGHno explanation yet
0%
epss
The record
Technical detail
CWE ID
CWE-303
Abstraction
Base
Structure
Simple
Status
Draft