Common Weakness Enumeration

CWE-307

Allowed

Improper Restriction of Excessive Authentication Attempts

Abstraction: Base · Status: Draft

API response cwe.mitre.org

The product does not implement sufficient measures to prevent multiple failed authentication attempts within a short time frame.

487 vulnerabilities reference this CWE, most recent first.

CVE-2026-65894 (GCVE-0-2026-65894)

Vulnerability from cvelistv5 – Published: 2026-07-27 07:16 – Updated: 2026-07-27 10:25
VLAI
Title
Improper Authentication Vulnerability in CP PLUS EZ-P21 IP Camera
Summary
This vulnerability exists in CP PLUS EZ-P21 IP Camera due to improper authentication of HTTP endpoints. A remote attacker could exploit this vulnerability by conducting brute-force attacks against HTTP endpoint on the targeted device. Successful exploitation of this vulnerability could allow an attacker to gain unauthorized access to live video snapshots from the targeted device.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-27 10:25 UTC
CWE
  • CWE-307 - Improper restriction of excessive authentication attempts
Assigner
CERT-In CNA
References
Impacted products
Vendor Product Version
CP-Plus EZ-P21 IP Camera Affected: version v4.8.8.1 and prior
    cpe:2.3:a:cp-plus:ez-p21_ip_camera:version_v4.8.8.1_and_prior:*:*:*:*:*:*:*
Create a notification for this product.
Credits
This vulnerability is reported by a team of security researchers including Vishwa V and Sathya Priya S from SRMIST Ramapuram. Tiyyagura Venkata Shesha Shaina Reddy and Isukapalli Venkata Mythreya Kumara Sarma from Vignan University. Deven Lunkad and S. Venkatesan from IIIT Allahabad.
Show details on NVD website
To clipboard 

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CVE-2026-65825 (GCVE-0-2026-65825)

Vulnerability from cvelistv5 – Published: 2026-10-23 20:29 – Updated: 2026-10-26 17:45
VLAI
Title
OpenReception: one tenant's throttle row disables the PIN brute-force throttle for the same identifier in other tenants
Summary
OpenReception's appointment booking software provides an end-to-end encrypted appointment booking platform. In versions 2.1.0 and prior, a returning client's six-digit booking PIN can be brute-forced online in the victim tenant. A successful guess yields the client's booking access token, granting access to that client's appointment tunnel, which holds their end-to-end-encrypted appointment data, and the ability to act as the client, for example adding or cancelling appointments in the tunnel. The bypass is cross-tenant: state owned by one tenant removes an authentication protection of a different tenant. This crossing of the tenant boundary is the basis for the scope-changed vector. At time of publication, there are no publicly available patches.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-26 15:39 UTC
CWE
  • CWE-307 - Improper Restriction of Excessive Authentication Attempts
Assigner
GitHub_M CNA
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2026-62862 (GCVE-0-2026-62862)

Vulnerability from cvelistv5 – Published: 2026-08-25 21:43 – Updated: 2026-08-26 15:04
VLAI
Title
TypeBot: Account takeover via brute-forceable 6-digit magic-link code
Summary
Typebot is an open-source chatbot builder. In self-hosted versions up to and including 3.17.1, the default passwordless email magic-link authentication is vulnerable to login-code brute forcing that leads to account takeover. The email provider overrides NextAuth's default cryptographically secure token with a 6-digit code generated using Math.random(), reducing the keyspace to 900,000 with a 10-minute expiry, and the code itself is the raw value placed in the magic link. The verification callback enforces no attempt limit, lockout, or CSRF protection, and an incorrect guess does not consume the real code because the adapter returns null on a not-found token, so a valid code survives unlimited guessing within its lifetime. The only rate limiter applies to the code-sending path and is keyed on the client-controlled X-Forwarded-For header, allowing an attacker to request many concurrent live codes for one victim and further raise the odds of a matching guess. As a result, an anonymous attacker who knows a victim's email address can brute-force the callback and obtain an authenticated session as that user with no victim interaction, gaining full access to the victim's bots, results, and connected integration credentials. Deployments configured for OAuth or SSO only, with no email provider, are not affected. This issue is fixed in version 3.18.0
Severity
9.1 (Critical)
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-26 15:04 UTC
CWE
  • CWE-307 - Improper Restriction of Excessive Authentication Attempts
  • CWE-330 - Use of Insufficiently Random Values
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
baptisteArno typebot.io Affected: < 3.18.0
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-62850 (GCVE-0-2026-62850)

Vulnerability from cvelistv5 – Published: 2026-11-06 17:04 – Updated: 2026-11-06 17:04
VLAI
Title
FreeScout: Administrative tools.php endpoint is accessible to low-privileged users, enabling filesystem enumeration and unthrottled brute-force of application secrets
Summary
FreeScout is a self-hosted help desk and shared mailbox. Prior to 1.8.225, the administrative tools.php maintenance endpoint is reachable without an appropriate authentication or access-control boundary. Response differences for attacker-controlled path values disclose whether arbitrary directories and files exist on the server. The same endpoint validates application-key and database-password candidates without rate limiting, per-session throttling, or a CAPTCHA, allowing unrestricted guessing attempts against application secrets. This issue is fixed in version 1.8.225.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CWE
  • CWE-287 - Improper Authentication
  • CWE-307 - Improper Restriction of Excessive Authentication Attempts
  • CWE-538 - Insertion of Sensitive Information into Externally-Accessible File or Directory
Assigner
GitHub_M CNA
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2026-62220 (GCVE-0-2026-62220)

Vulnerability from cvelistv5 – Published: 2026-07-17 00:07 – Updated: 2026-07-17 10:37 X_Open Source
VLAI
Title
OpenClaw 2026.2.25 < 2026.5.26 WebSocket Rate Limit Bypass
Summary
OpenClaw 2026.2.25 before 2026.5.26 allow a lower-trust caller or configured input path to bypass non-browser rate limits on WebSocket authentication attempts. When the affected feature is enabled and reachable by lower-trust input, this can consume gateway resources and reduce service availability.
Severity
6.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-17 10:29 UTC
CWE
  • CWE-307 - Improper Restriction of Excessive Authentication Attempts
Assigner
VulnCheck CNA
References
Impacted products
Vendor Product Version
OpenClaw OpenClaw Affected: 2026.2.25 , < 2026.5.26 (semver)
Unaffected: 2026.5.26 (semver)
    cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*
Create a notification for this product.
Date Public
2026-06-30 00:00
Credits
ylwango613
Show details on NVD website
To clipboard 

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CVE-2026-61611 (GCVE-0-2026-61611)

Vulnerability from cvelistv5 – Published: 2026-10-15 16:25 – Updated: 2026-10-29 13:40
VLAI
Title
Lychee: Missing rate limiting on album password unlock endpoint allows brute-force attacks
Summary
Lychee is a free, open-source photo-management tool. Prior to 7.6.1, POST /api/v2/Album::unlock has no throttle, attempt counter, backoff, CAPTCHA, or lockout. UnlockAlbumRequest::authorize() permits any caller to submit attempts, and app/Actions/Album/Unlock.php verifies each guess with Hash::check without limiting repeated failures. A remote unauthenticated attacker who knows or can obtain an album identifier can automate password guesses against a password-protected album and, if the password is recovered, gain access to its private photo collection. This issue is fixed in version 7.6.1.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-29 13:40 UTC
CWE
  • CWE-307 - Improper Restriction of Excessive Authentication Attempts
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
LycheeOrg Lychee Affected: < 7.6.1
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-61458 (GCVE-0-2026-61458)

Vulnerability from cvelistv5 – Published: 2026-07-13 21:30 – Updated: 2026-07-14 22:03 X_Open Source
VLAI
Title
PasswordPusher < 2.9.2 Passphrase Brute-Force via Unthrottled Endpoint
Summary
PasswordPusher before 2.9.2 contains a brute-force vulnerability in the POST /p/:token/access endpoint that lacks route-specific rate limiting and per-push lockout mechanisms. Attackers who know a push token can systematically guess passphrases at 120 attempts per minute without triggering any push-level defense, making short or dictionary-derived passphrases practically recoverable within hours or days.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-14 14:25 UTC
CWE
  • CWE-307 - Improper Restriction of Excessive Authentication Attempts
Assigner
VulnCheck CNA
References
Impacted products
Vendor Product Version
pglombardo PasswordPusher Affected: 0 , < 2.9.2 (semver)
Unaffected: 2.9.2 (semver)
    cpe:2.3:a:apnotic:password_pusher:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-07-06 00:00
Credits
de3erve-hunter
Show details on NVD website
To clipboard 

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CVE-2026-58271 (GCVE-0-2026-58271)

Vulnerability from cvelistv5 – Published: 2026-09-21 19:50 – Updated: 2026-09-24 22:36
VLAI
Title
@sync-in/server vulnerable to TOTP Brute-Force via `POST /api/app/sync/register`
Summary
Sync-in Server is an open-source platform for file storage, sharing, collaboration, and syncing. Prior to version 2.4.0, `POST /api/app/sync/register` accepts credentials and a TOTP code to register a desktop sync client. On a failed TOTP, `SyncClientsManager.register()` calls `updateAccesses(user, ip, false)`, which hits a freeze branch that writes `passwordAttempts` back unchanged. The counter never reaches `USER_MAX_PASSWORD_ATTEMPTS` (10) and the lockout gate never fires. A successful guess returns a `{clientId, clientToken}` pair. The token can be exchanged via `POST /api/app/sync/auth/cookie` for a full JWT. While the code is valid, the attacker can also call `POST /api/auth/2fa/disable` to permanently remove MFA. Version 2.4.0 patches the issue.
Severity
6.8 (Medium)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-24 22:35 UTC
CWE
  • CWE-307 - Improper Restriction of Excessive Authentication Attempts
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
Sync-in server Affected: < 2.4.0
Create a notification for this product.
Show details on NVD website
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CVE-2026-56682 (GCVE-0-2026-56682)

Vulnerability from cvelistv5 – Published: 2026-09-22 16:09 – Updated: 2026-09-22 17:23
VLAI
Title
9Router: Login Brute-Force Lockout Bypass via Spoofable X-9r-Real-Ip Header
Summary
9Router is an AI router & token saver. Prior to 0.5.6, 9Router deployments that allow requests to reach Next.js without the sanitizing custom-server.js wrapper use the client-supplied X-9r-Real-Ip value as the bucket key in getClientIp, checkLock, and recordFail in src/lib/auth/loginLimiter.js for POST /api/auth/login. A remote unauthenticated attacker can rotate the header on every password guess so each request uses a new failed-attempt bucket and the five-attempt progressive lockout never returns HTTP 429. This permits unthrottled password guessing against the dashboard login and can lead to an administrative session if the password is recovered. This issue is fixed in version 0.5.6.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-22 17:22 UTC
CWE
  • CWE-307 - Improper Restriction of Excessive Authentication Attempts
  • CWE-807 - Reliance on Untrusted Inputs in a Security Decision
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
decolua 9router Affected: < 0.5.6
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-56592 (GCVE-0-2026-56592)

Vulnerability from cvelistv5 – Published: 2026-09-18 08:23 – Updated: 2026-09-18 11:24
VLAI
Title
HCL BigFix Service Management is affected by multiple security vulnerabilities.
Summary
HCL BigFix Service Management is affected by an Improper Authentication validation vulnerability related to inadequate account lockouts, which could allow an unauthenticated attacker to execute sustained brute-force attacks against the login interface, resulting in unauthorized system access.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-18 11:11 UTC
CWE
  • CWE-307 - Improper Restriction of Excessive Authentication Attempts
Assigner
HCL CNA
References
Impacted products
Show details on NVD website
To clipboard 

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Mitigation
Architecture and Design
  • Common protection mechanisms include:
  • Disconnecting the user after a small number of failed attempts
  • Implementing a timeout
  • Locking out a targeted account
  • Requiring a computational task on the user's part.
Mitigation MIT-4
Architecture and Design

Strategy: Libraries or Frameworks

  • Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid [REF-1482].
  • Consider using libraries with authentication capabilities such as OpenSSL or the ESAPI Authenticator. [REF-45]
CAPEC-16: Dictionary-based Password Attack

An attacker tries each of the words in a dictionary as passwords to gain access to the system via some user's account. If the password chosen by the user was a word within the dictionary, this attack will be successful (in the absence of other mitigations). This is a specific instance of the password brute forcing attack pattern.

Dictionary Attacks differ from similar attacks such as Password Spraying (CAPEC-565) and Credential Stuffing (CAPEC-600), since they leverage unknown username/password combinations and don't care about inducing account lockouts.

CAPEC-49: Password Brute Forcing

An adversary tries every possible value for a password until they succeed. A brute force attack, if feasible computationally, will always be successful because it will essentially go through all possible passwords given the alphabet used (lower case letters, upper case letters, numbers, symbols, etc.) and the maximum length of the password.

CAPEC-560: Use of Known Domain Credentials

An adversary guesses or obtains (i.e. steals or purchases) legitimate credentials (e.g. userID/password) to achieve authentication and to perform authorized actions under the guise of an authenticated user or service.

CAPEC-565: Password Spraying

In a Password Spraying attack, an adversary tries a small list (e.g. 3-5) of common or expected passwords, often matching the target's complexity policy, against a known list of user accounts to gain valid credentials. The adversary tries a particular password for each user account, before moving onto the next password in the list. This approach assists the adversary in remaining undetected by avoiding rapid or frequent account lockouts. The adversary may then reattempt the process with additional passwords, once enough time has passed to prevent inducing a lockout.

CAPEC-600: Credential Stuffing

An adversary tries known username/password combinations against different systems, applications, or services to gain additional authenticated access. Credential Stuffing attacks rely upon the fact that many users leverage the same username/password combination for multiple systems, applications, and services.

CAPEC-652: Use of Known Kerberos Credentials

An adversary obtains (i.e. steals or purchases) legitimate Kerberos credentials (e.g. Kerberos service account userID/password or Kerberos Tickets) with the goal of achieving authenticated access to additional systems, applications, or services within the domain.

CAPEC-653: Use of Known Operating System Credentials

An adversary guesses or obtains (i.e. steals or purchases) legitimate operating system credentials (e.g. userID/password) to achieve authentication and to perform authorized actions on the system, under the guise of an authenticated user or service. This applies to any Operating System.

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