Untrusted search path in auth_query connection handler in PgBouncer before 1.25.1 allows an unauthenticated attacker to execute arbitrary SQL during authentication via a malicious search_path parameter in the StartupMessage.

The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-d3d959a176 advisory.

    Update to 1.25.2.

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 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-fad57ac86d advisory.

    Update to 1.25.2.

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 42 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-cf2ba5b766 advisory.

    Update to 1.25.2.

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 version of CBL-Mariner Releases installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2025-12819 advisory.

  - Untrusted search path in auth_query connection handler in PgBouncer before 1.25.1 allows an     unauthenticated attacker to execute arbitrary SQL during authentication via a malicious search_path     parameter in the StartupMessage. (CVE-2025-12819)

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

The version of CBL-Mariner Releases installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2025-12819 advisory.

  - Untrusted search path in auth_query connection handler in PgBouncer before 1.25.1 allows an     unauthenticated attacker to execute arbitrary SQL during authentication via a malicious search_path     parameter in the StartupMessage. (CVE-2025-12819)

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

The remote Debian 11 host has a package installed that is affected by a vulnerability as referenced in the dla-4422 advisory.

    -------------------------------------------------------------------------     Debian LTS Advisory DLA-4422-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                   Andreas Henriksson     December 27, 2025                             https://wiki.debian.org/LTS
    -------------------------------------------------------------------------

    Package        : pgbouncer     Version        : 1.15.0-1+deb11u2     CVE ID         : CVE-2025-12819     Debian Bug     :

    PgBouncer is a lightweight connection pooler for PostgreSQL.

    CVE-2025-12819

        Untrusted search path in auth_query connection handler in PgBouncer before         1.25.1 allows an unauthenticated attacker to execute arbitrary SQL during         authentication via a malicious search_path parameter in the StartupMessage.

    For Debian 11 bullseye, this problem has been fixed in version     1.15.0-1+deb11u2.

    We recommend that you upgrade your pgbouncer packages.

    For the detailed security status of pgbouncer please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/pgbouncer

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS     Attachment:
    signature.asc     Description: PGP signature

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

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

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - Untrusted search path in auth_query connection handler in PgBouncer before 1.25.1 allows an     unauthenticated attacker to execute arbitrary SQL during authentication via a malicious search_path     parameter in the StartupMessage. (CVE-2025-12819)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Severity
315120	Fedora 44 : pgbouncer (2026-d3d959a176)	Nessus	Fedora Local Security Checks	high
315118	Fedora 43 : pgbouncer (2026-fad57ac86d)	Nessus	Fedora Local Security Checks	high
315115	Fedora 42 : pgbouncer (2026-cf2ba5b766)	Nessus	Fedora Local Security Checks	high
295014	Azure Linux 3.0 Security Update: CBL-Mariner Releases (CVE-2025-12819)	Nessus	Azure Linux Local Security Checks	high
295008	CBL Mariner 2.0 Security Update: CBL-Mariner Releases (CVE-2025-12819)	Nessus	MarinerOS Local Security Checks	high
280099	Debian dla-4422 : pgbouncer - security update	Nessus	Debian Local Security Checks	high
277445	Linux Distros Unpatched Vulnerability : CVE-2025-12819	Nessus	Misc.	high

Detections

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CVE-2025-12819

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Tenable Plugins

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high

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high

high