CWE-303
AllowedIncorrect Implementation of Authentication Algorithm
Abstraction: Base · Status: Draft
The requirements for the product dictate the use of an established authentication algorithm, but the implementation of the algorithm is incorrect.
106 vulnerabilities reference this CWE, most recent first.
CVE-2026-109928 (GCVE-0-2026-109928)
Vulnerability from cvelistv5 – Published: 2026-11-05 13:36 – Updated: 2026-11-05 13:36- CWE-303 - Incorrect implementation of authentication algorithm
| URL | Tags |
|---|---|
| https://lists.apache.org/thread.html/7b2syzksp7kl… | vendor-advisory |
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache OFBiz |
Affected:
0 , < 24.09.08
(semver)
|
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CVE-2026-107279 (GCVE-0-2026-107279)
Vulnerability from cvelistv5 – Published: 2026-10-07 21:10 – Updated: 2026-10-08 15:02| URL | Tags |
|---|---|
| https://github.com/AsyncHttpClient/async-http-cli… | x_refsource_CONFIRM |
| https://github.com/AsyncHttpClient/async-http-cli… | x_refsource_MISC |
| https://github.com/AsyncHttpClient/async-http-cli… | x_refsource_MISC |
| Vendor | Product | Version | |
|---|---|---|---|
| AsyncHttpClient | async-http-client |
Affected:
= 3.0.12
|
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CVE-2026-104939 (GCVE-0-2026-104939)
Vulnerability from cvelistv5 – Published: 2026-10-14 14:40 – Updated: 2026-10-15 16:43| URL | Tags |
|---|---|
| https://my.f5.com/manage/s/article/K000162617 | vendor-advisory |
| Vendor | Product | Version | |
|---|---|---|---|
| F5 | NGINX Ingress Controller |
Affected:
5.6.0 , < 5.7.0
(custom)
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CVE-2026-101878 (GCVE-0-2026-101878)
Vulnerability from cvelistv5 – Published: 2026-09-29 01:58 – Updated: 2026-11-08 14:00 X_Open Source- CWE-303 - Incorrect Implementation of Authentication Algorithm
| URL | Tags |
|---|---|
| https://sanjokkarki.com.np/blog/bitwarden-sso-ext… | technical-descriptionexploit |
| https://github.com/bitwarden/server/releases/tag/… | release-notes |
| https://github.com/bitwarden/server/pull/7501 | issue-trackingpatch |
| https://github.com/bitwarden/server/commit/27ae3d… | patch |
| https://www.vulncheck.com/advisories/bitwarden-se… | third-party-advisory |
| Vendor | Product | Version | |
|---|---|---|---|
| bitwarden | bitwarden server |
Affected:
2025.6.0 , < 2026.5.0
(custom)
cpe:2.3:a:bitwarden:server:*:*:*:*:*:*:*:* |
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CVE-2026-97720 (GCVE-0-2026-97720)
Vulnerability from cvelistv5 – Published: 2026-10-07 08:46 – Updated: 2026-10-07 18:47- CWE-303 - Incorrect implementation of authentication algorithm
| URL | Tags |
|---|---|
| https://lists.apache.org/thread.html/q2qkrnko9hdv… | vendor-advisory |
| http://www.openwall.com/lists/oss-security/2026/1… |
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Impala |
Affected:
4.1.0 , ≤ 4.5.2
(semver)
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CVE-2026-96460 (GCVE-0-2026-96460)
Vulnerability from cvelistv5 – Published: 2026-11-06 06:02 – Updated: 2026-11-06 17:34- CWE-303 - Incorrect Implementation of Authentication Algorithm
| URL | Tags |
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| https://access.redhat.com/errata/RHSA-2026:95761 | vendor-advisoryx_refsource_REDHAT |
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| https://bugzilla.redhat.com/show_bug.cgi?id=2539301 | issue-trackingx_refsource_REDHAT |
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.6 |
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|
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|
| Red Hat | Red Hat build of Keycloak 26.6.8 |
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|
| Red Hat | Red Hat Single Sign-On 7 |
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CVE-2026-93394 (GCVE-0-2026-93394)
Vulnerability from cvelistv5 – Published: 2026-09-17 20:31 – Updated: 2026-09-18 14:31- CWE-303 - Incorrect Implementation of Authentication Algorithm
| Vendor | Product | Version | |
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| MongoDB Inc. | C Driver |
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CVE-2026-92873 (GCVE-0-2026-92873)
Vulnerability from cvelistv5 – Published: 2026-09-30 07:51 – Updated: 2026-09-30 16:58- CWE-303 - Incorrect Implementation of Authentication Algorithm
| Vendor | Product | Version | |
|---|---|---|---|
| Pgpool Global Development Group | Pgpool-II |
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CVE-2026-89077 (GCVE-0-2026-89077)
Vulnerability from cvelistv5 – Published: 2026-10-14 15:16 – Updated: 2026-10-15 03:56- CWE-303 - Incorrect implementation of authentication algorithm
| URL | Tags |
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| https://community.progress.com/s/article/MOVEit-T… | vendor-advisory |
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|---|---|---|---|
| Progress | MOVEit Transfer |
Affected:
0 , < 2025.1.6
(semver)
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CVE-2026-86589 (GCVE-0-2026-86589)
Vulnerability from cvelistv5 – Published: 2026-10-19 09:35 – Updated: 2026-10-30 16:35- CWE-303 - Incorrect implementation of authentication algorithm
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|---|---|
| https://lists.apache.org/thread/t8mbzfolzlqz4z5hc… | vendor-advisory |
| http://www.openwall.com/lists/oss-security/2026/1… |
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Answer |
Affected:
0 , ≤ 2.0.2
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No mitigation information available for this CWE.
CAPEC-90: Reflection Attack in Authentication Protocol
An adversary can abuse an authentication protocol susceptible to reflection attack in order to defeat it. Doing so allows the adversary illegitimate access to the target system, without possessing the requisite credentials. Reflection attacks are of great concern to authentication protocols that rely on a challenge-handshake or similar mechanism. An adversary can impersonate a legitimate user and can gain illegitimate access to the system by successfully mounting a reflection attack during authentication.