Improper restriction of excessive authentication attempts (CWE-307) in pgAdmin 4. pgAdmin enforces MAX_LOGIN_ATTEMPTS only inside its custom /authenticate/login view. Flask-Security's default /login view, which is registered automatically by security.init_app() and is reachable on every server, never consulted the User.locked field: pgAdmin's User model relied on Flask-Security's UserMixin.is_locked() (which always returns 'not locked') and Flask-Login's is_active (which only checks the active column, not locked). An attacker who triggered an account lockout via /authenticate/login could therefore obtain a session by re-submitting valid credentials directly to /login, defeating the brute-force-protection control for accounts using the INTERNAL authentication source. The same bypass also means that login attempts via /login are never rate-limited, so an attacker can perform an unbounded online password-guessing attack against INTERNAL accounts regardless of MAX_LOGIN_ATTEMPTS. Fix overrides User.is_active and User.is_locked() so the locked column is enforced on every authentication path. LDAP, OAuth2, Kerberos, and Webserver users are not reachable by this bypass because they have no local password and are rejected by Flask-Security's LoginForm.validate before the locked check; the lockout itself is also internal-only (the /authenticate/login view filters by auth_source=INTERNAL). This issue affects pgAdmin 4: before 9.15.

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-1545df20ad advisory.

    Update to pgadmin4-9.15.


Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-68f6155fea advisory.

    Update to pgadmin4-9.15.


Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - Improper restriction of excessive authentication attempts (CWE-307) in pgAdmin 4. pgAdmin enforces
    MAX_LOGIN_ATTEMPTS only inside its custom /authenticate/login view. Flask-Security's default /login view,
    which is registered automatically by security.init_app() and is reachable on every server, never consulted
    the User.locked field: pgAdmin's User model relied on Flask-Security's UserMixin.is_locked() (which always
    returns 'not locked') and Flask-Login's is_active (which only checks the active column, not locked). An
    attacker who triggered an account lockout via /authenticate/login could therefore obtain a session by re-
    submitting valid credentials directly to /login, defeating the brute-force-protection control for accounts
    using the INTERNAL authentication source. The same bypass also means that login attempts via /login are
    never rate-limited, so an attacker can perform an unbounded online password-guessing attack against
    INTERNAL accounts regardless of MAX_LOGIN_ATTEMPTS. Fix overrides User.is_active and User.is_locked() so
    the locked column is enforced on every authentication path. LDAP, OAuth2, Kerberos, and Webserver users
    are not reachable by this bypass because they have no local password and are rejected by Flask-Security's
    LoginForm.validate before the locked check; the lockout itself is also internal-only (the
    /authenticate/login view filters by auth_source=INTERNAL). This issue affects pgAdmin 4: before 9.15.
    (CVE-2026-7820)

ID	Name	Product	Family	Severity
315979	Fedora 43 : pgadmin4 (2026-1545df20ad)	Nessus	Fedora Local Security Checks	critical
315975	Fedora 44 : pgadmin4 (2026-68f6155fea)	Nessus	Fedora Local Security Checks	critical
442101	SCA: security update for pgadmin4 (GHSA-hv9p-2pqf-r5w3)	Tenable Cloud Security	SCA Checks	medium
442101	SCA: security update for pgadmin4 (GHSA-hv9p-2pqf-r5w3)	Tenable Self-Hosted Container Security	SCA Checks	medium

Detections

Analytics

CVE-2026-7820

medium

Tenable Plugins

critical

critical

medium

medium