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CVE-2026-16238

PostgreSQL type confusion in pg_restore_attribute_stats() executes arbitrary code

Type confusion in PostgreSQL pg_restore_attribute_stats() allows an object creator to execute arbitrary code as the operating system user running the database, via conflation of range and multirange values. Within major version 18, minor versions before PostgreSQL 18.6 are affected. Versions before PostgreSQL 18 are unaffected.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
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Postgresql
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Postgresql
CVE-2026-15742

PostgreSQL fuzzystrmatch writes effectively-arbitrary addresses, via integer wraparound

Integer wraparound in PostgreSQL fuzzystrmatch allows a user to direct writes to a huge range of addresses, executing arbitrary code as the operating system user running the database, via extreme inputs to SQL function levenshtein() or levenshtein_less_equal(). Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
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Postgresql
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Postgresql
CVE-2026-15741

PostgreSQL expression deparse allows SQL injection via EXTRACT argument

SQL injection in PostgreSQL EXTRACT() deparse allows an object owner to execute arbitrary SQL as a superuser via a hostile object definition. Attacks affect expression deparse consumers broadly, including pg_dump, psql commands like \sf, and any similar usage in non-core tools. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
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Postgresql
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Postgresql
CVE-2026-14681

PostgreSQL improper enforcement of GSSAPI encryption when coupled with SSL

Improper enforcement of message integrity in PostgreSQL GSSAPI support allows a user to negotiate GSSAPI contrary to pg_hba.conf rules, via initial direct TLS connection. Despite a pg_hba.conf that appears to require GSSAPI, the connection may exchange data over TLS encryption alone. If the TLS settings are more permissive than the GSS settings, the connection may continue with lesser protection. Within major versions 17-18, minor versions before PostgreSQL 18.6 and 17.11 are affected. Versions before PostgreSQL 17 are unaffected.

CVSS 3.1 · 4.2 Medium EPSS < 1% KEV · Not listed
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Postgresql
Products
Postgresql
CVE-2026-14680

PostgreSQL type confusion via "internal" arguments

Type confusion with PostgreSQL "internal" data type arguments allows any user to execute arbitrary code as the operating system user running the database, via calls to functions with that argument type. Type "internal" represents a class of mutually-incompatible data structures not intended for access from SQL. The system intended to prevent such function calls, but this prevention had gaps. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Vendors
Postgresql
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Postgresql
CVE-2026-14679

PostgreSQL stack buffer overflow in argument match writes 0x0 and 0x1 to server memory

Stack buffer overflow in PostgreSQL argument name matching allows an object creator to achieve unknown impacts via OUT parameter count. The attack can write only 0x0 and 0x1 bytes. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.

CVSS 3.1 · 8.2 High EPSS < 1% KEV · Not listed
Vendors
Postgresql
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Postgresql
CVE-2026-14678

PostgreSQL pg_trgm picksplit reads past end of buffer

Buffer over-read in PostgreSQL pg_trgm index picksplit function reads past end of a heap buffer. This might allow a table maintainer to infer limited memory values, via the lossy signal of index split choices. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.

CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
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Postgresql
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Postgresql
CVE-2026-14677

PostgreSQL 32-bit pltcl and plperl undersize allocations, via integer wraparound

Integer wraparound in PostgreSQL 32-bit builds of pltcl and plperl allows an object creator to cause the server to undersize an allocation and write out-of-bounds via crafted function bodies. This may execute arbitrary code as the operating system user running the database. CVE-2026-6473 had fixed similar problems. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
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Postgresql
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Postgresql
CVE-2026-14676

PostgreSQL pg_stat_statements heap buffer overflow executes arbitrary code

Heap buffer overflow in PostgreSQL pg_stat_statements allows the query author to execute arbitrary code as the operating system user running the database, via crafted queries containing array constants. Within major version 18, minor versions before PostgreSQL 18.6 are affected. Versions before PostgreSQL 18 are unaffected.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Vendors
Postgresql
Products
Postgresql
CVE-2026-14673

PostgreSQL amcheck does not clear untrusted search path

Untrusted search path in PostgreSQL amcheck allows a grantee of amcheck function EXECUTE privilege to execute arbitrary functions as the owners of expression indexes that depend on the search path, via setting a hostile search path before calling the amcheck function. Within major versions 18, 16, 15, and 14, minor versions before PostgreSQL 18.6, 16.15, 15.19, and 14.24 are affected. PostgreSQL 17 is unaffected.

CVSS 3.1 · 3.8 Low EPSS < 1% KEV · Not listed
Vendors
Postgresql
Products
Postgresql
CVE-2026-14672

PostgreSQL observable response discrepancy with non-default scram_iterations provides user existence oracle

Observable response discrepancy in PostgreSQL SCRAM authentication allows an unauthenticated user to test the existence of a user via observing the SCRAM iteration count. This requires the probed user to have a non-default scram_iterations count, because the authentication challenge for a nonexistent user reports the default scram_iterations. Within major versions 16-18, minor versions before PostgreSQL 18.6, 17.11, and 16.15 are affected. Versions before PostgreSQL 16 are unaffected.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
Postgresql
Products
Postgresql
CVE-2026-14670

PostgreSQL plperl tied object heap buffer overflow executes arbitrary code

Heap buffer overflow in PostgreSQL plperl return of a tied hash allows the function owner to execute arbitrary code as the operating system user running the database, via a crafted function body. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Vendors
Postgresql
Products
Postgresql
CVE-2026-14669

PostgreSQL to_char heap buffer overflow executes arbitrary code

Heap buffer overflow in PostgreSQL to_char(timestamptz) allows the party choosing the timezone to execute arbitrary code as the operating system user running the database, via a long POSIX timezone abbreviation. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Vendors
Postgresql
Products
Postgresql
CVE-2026-14668

PostgreSQL ctid type confusion in selectivity estimator discloses derivative of arbitrary read

Type confusion regarding input of PostgreSQL ctid data type selectivity estimator allows an object creator to view a calculation derived from the value of an arbitrary 4-byte span of memory, via a chosen non-ctid input. While the calculation loses precision, substantial memory value recovery appears possible. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.

CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed
Vendors
Postgresql
Products
Postgresql
CVE-2026-14666

PostgreSQL row security caching disregards role modifications

Incomplete tracking in PostgreSQL of changes to role membership, role attributes, and database ownership allows a query to continue using cached row-level security policies after those changes require a different policy, via plan reuse. Stale policies continue until some other event invalidates the cache or connection termination ends the session. This permits a user to complete reads and modifications that were recently permitted but now forbidden. An attacker must tailor an attack to a particular application's pattern of privilege removal and role-specific row security policies. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.

CVSS 3.1 · 4.2 Medium EPSS < 1% KEV · Not listed
Vendors
Postgresql
Products
Postgresql
CVE-2026-14664

PostgreSQL regexp heap buffer overflow executes arbitrary code

Heap buffer overflow in PostgreSQL regexp allows the query author to execute arbitrary code as the operating system user running the database, via text that would not pass encoding validation. This shares heritage with CVE-2026-2006, but this case involved unanticipated data growth when round-tripped through pg_wchar. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Vendors
Postgresql
Products
Postgresql
CVE-2026-14663

PostgreSQL pgcrypto, for OpenSSL-disabled ciphers, silently encrypts to and decrypts from cleartext

Cleartext storage in PostgreSQL pgcrypto disabled ciphers allows a user to recover cleartext, via direct observation of the faulty ciphertext. The OpenSSL version and OpenSSL configuration determine the disabled ciphers. If the application accepts encrypted data as input, decryption will succeed even with the wrong key. This in turn loses the modest protection from the Modification Detection Code (MDC). Affected functions are pgp_sym_encrypt, pgp_sym_decrypt, pgp_pub_encrypt, pgp_pub_decrypt, pgp_sym_encrypt_bytea, pgp_sym_decrypt_bytea, pgp_pub_encrypt_bytea, and pgp_pub_decrypt_bytea. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Postgresql
Products
Postgresql
CVE-2026-14662

PostgreSQL tsvector and tsquery undersize allocations, via integer wraparound

Integer wraparound in PostgreSQL tsvector and tsquery data type functions allows an unprivileged database user to cause the server to undersize an allocation and write out-of-bounds, via crafted large inputs. This may execute arbitrary code as the operating system user running the database. These types are typically sourced from application logic, not taken from the application's user. Hence, application users attacking the database, through the application as a conduit, are unlikely. CVE-2026-6473 had fixed similar problems. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Vendors
Postgresql
Products
Postgresql
CVE-2026-80591

f2fs: fix listxattr handling of corrupted xattr entries

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix listxattr handling of corrupted xattr entries Validate the xattr entry before reading its fields in f2fs_listxattr(). Return -EFSCORRUPTED when the entry is outside the valid xattr storage area instead of returning a successful partial result.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Linux
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Linux Kernel