PT-2026-42827

Name of the Vulnerable Software and Affected Versions authentik versions prior to 2025.12.5 authentik versions 2026.2.0-rc1 through 2026.2.2 Description The 'PATCH /api/v3/core/users/pk/' API allows a caller with change user permissions on a target user to assign arbitrary groups via...

CVE-2026-45251

A file descriptor can be closed while a thread is blocked in a poll2 or select2 call waiting for that descriptor. Because the blocked thread does not hold a reference to the underlying object, this closure may result in the object being freed while the thread remains blocked. In this situation, t...

CVE-2026-45251 Kernel use-after-free via file descriptor syscalls

A file descriptor can be closed while a thread is blocked in a poll2 or select2 call waiting for that descriptor. Because the blocked thread does not hold a reference to the underlying object, this closure may result in the object being freed while the thread remains blocked. In this situation, t...

Astra Linux – Vulnerability in PostgresSQL 11

In the extension script, a SQL injection vulnerability was detected in PostgreSQL when the symbols @extowner@, @extschema@, or @extschema:...@ were used within quotation marks either dollar quotes, '', or other quotation marks. If an administrator has installed files from a vulnerable, trusted,...

Astra Linux – Vulnerability in PostgresSQL 11

A flaw was discovered in PostgreSQL. There is an issue where insufficient efforts are made to ensure safe operation when a privileged user is managing objects of another user. The Autovacuum, REINDEX, CREATE INDEX, REFRESH MATERIALIZED VIEW, CLUSTER, and pgamcheck commands activate relevant...

Astra Linux – Vulnerability in PostgresSQL 11

A late privilege drop in the REFRESH MATERIALIZED VIEW CONCURRENTLY operation in PostgreSQL allows an object creator to execute arbitrary SQL functions as the command issuer. This feature enables the owner of the materialized view to run SQL functions, thereby allowing for the safe refreshing of...

Astra Linux – Vulnerability in PostgresSQL 11

A flaw was discovered in PostgreSQL versions prior to 13.1, before 12.5, before 11.10, before 10.15, before 9.6.20, and before 9.5.24. An attacker who has permission to create non-temporary objects in at least one schema can execute arbitrary SQL functions under the identity of a superuser. The...

SUSE CVE-2026-6476

SQL injection in PostgreSQL pgcreatesubscriber allows an attacker with pgcreatesubscription rights to execute arbitrary SQL as a superuser. The attack takes effect when pgcreatesubscriber next runs. Within major versions 17 and 18, minor versions before PostgreSQL 18.4 and 17.10 are affected...

BIT-POSTGRESQL-2026-6477 PostgreSQL libpq lo_* functions let server superuser overwrite client stack memory

Use of inherently dangerous function PQfn..., resultisint=0, ... in PostgreSQL libpq loexport, loread, lolseek64, and lotell64 functions allows the server superuser to overwrite a client stack buffer with an arbitrarily-large response. Like gets, PQfn..., resultisint=0, ... stores arbitrary-lengt...

BIT-POSTGRESQL-2026-6476 PostgreSQL pg_createsubscriber allows SQL injection via subscription name

SQL injection in PostgreSQL pgcreatesubscriber allows an attacker with pgcreatesubscription rights to execute arbitrary SQL as a superuser. The attack takes effect when pgcreatesubscriber next runs. Within major versions 17 and 18, minor versions before PostgreSQL 18.4 and 17.10 are affected...

BIT-POSTGRESQL-2026-6475 PostgreSQL pg_basebackup and pg_rewind can overwrite unrelated files of origin superuser choice

Symlink following in PostgreSQL pgbasebackup plain format and in pgrewind allows an origin superuser to overwrite local files, e.g. /var/lib/postgres/.bashrc, that hijack the operating system account. It will remain the case that starting the server after these commands implicitly trusts the orig...

PostgreSQL libpq lo_* functions let server superuser overwrite client stack memory

...

PostgreSQL pg_basebackup and pg_rewind can overwrite unrelated files of origin superuser choice

...

Privilege Escalation

CloudNativePG is vulnerable to Privilege Escalation. The vulnerability is due to the metrics exporter establishing PostgreSQL sessions as the postgres superuser and relying on SET ROLE for privilege reduction, which allows an attacker to restore superuser privileges using RESET ROLE and execute...

SQL Injection

Overview Affected versions of this package are vulnerable to SQL Injection via the pgcreatesubscriber process. An attacker can execute arbitrary SQL commands with superuser privileges by supplying a crafted subscription name. Remediation A fix was pushed into the master branch but not yet...

ALPINE-CVE-2026-6476

SQL injection in PostgreSQL pgcreatesubscriber allows an attacker with pgcreatesubscription rights to execute arbitrary SQL as a superuser. The attack takes effect when pgcreatesubscriber next runs. Within major versions 17 and 18, minor versions before PostgreSQL 18.4 and 17.10 are affected...

ALPINE-CVE-2026-6475

Symlink following in PostgreSQL pgbasebackup plain format and in pgrewind allows an origin superuser to overwrite local files, e.g. /var/lib/postgres/.bashrc, that hijack the operating system account. It will remain the case that starting the server after these commands implicitly trusts the orig...

CVE-2026-6475

Symlink following in PostgreSQL pgbasebackup plain format and in pgrewind allows an origin superuser to overwrite local files, e.g. /var/lib/postgres/.bashrc, that hijack the operating system account. It will remain the case that starting the server after these commands implicitly trusts the orig...

CVE-2026-6476

SQL injection in PostgreSQL pgcreatesubscriber allows an attacker with pgcreatesubscription rights to execute arbitrary SQL as a superuser. The attack takes effect when pgcreatesubscriber next runs. Within major versions 17 and 18, minor versions before PostgreSQL 18.4 and 17.10 are affected...

CVE-2026-6477

Use of inherently dangerous function PQfn..., resultisint=0, ... in PostgreSQL libpq loexport, loread, lolseek64, and lotell64 functions allows the server superuser to overwrite a client stack buffer with an arbitrarily-large response. Like gets, PQfn..., resultisint=0, ... stores arbitrary-lengt...