Vulnerability-Lookup

CVE-2026-18408 (GCVE-0-2026-18408)

Vulnerability from cvelistv5 – Published: 2026-08-13 13:00 – Updated: 2026-08-29 23:07

Title

PostgreSQL psql \unrestrict lets superuser of pg_dump origin server execute arbitrary code in psql client

Summary

Untrusted data inclusion in pg_dump in PostgreSQL allows a malicious superuser of the origin server to inject arbitrary code for restore-time execution as the client operating system account running psql to restore the dump, via psql \restrict meta-command input expansion. The fix for CVE-2025-8714 introduced \restrict and \unrestrict to block this attack, but \unrestrict itself was sufficient for an attack. pg_dumpall is also affected. pg_restore is affected when used to generate a plain-format dump. Non-core use of \restrict would be affected, but we've not identified non-core use. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-13 00:00 UTC

CWE

CWE-829 - Inclusion of Functionality from Untrusted Control Sphere

Assigner

PostgreSQL CNA under the redhat root

CNA scorecard C 67/100 over 88 records in the last 180 days details

References

1 reference

URL	Tags
https://www.postgresql.org/support/security/CVE-2…

Impacted products

1 product

Vendor	Product	Version	CPE status
n/a	PostgreSQL	Affected: 18 , < 18.6 (rpm) Affected: 17 , < 17.11 (rpm) Affected: 16 , < 16.15 (rpm) Affected: 15 , < 15.19 (rpm) Affected: 0 , < 14.24 (rpm)

Credits

The PostgreSQL project thanks Lucas Velgus, Filip Janus, and Daniel Bakker for reporting this problem.

Show details on NVD website

JSON

To clipboard

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OESA-2026-3424 (CVE-2026-14662)

Vulnerability from osv_openeuler – Published: 2026-08-20 09:57 – Updated: 2026-08-20 09:57 – Source website

Summary

postgresql-17 security update

Details

PostgreSQL client programs

Security Fix(es):

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 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.(CVE-2026-14662)

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 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.(CVE-2026-14663)

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 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.(CVE-2026-14664)

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 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.(CVE-2026-14666)

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 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.(CVE-2026-14668)

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 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.(CVE-2026-14669)

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 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.(CVE-2026-14670)

Type confusion in PostgreSQL module "refint" allows an object creator to execute arbitrary code as the operating system user running the database. The fix for this emerged as a non-security bug report, and the fix appear in the git repository with subject "refint: Remove plan cache.", without a CVE number. Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.(CVE-2026-14671)

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 18.5, 17.11, and 16.15 are affected. Versions before PostgreSQL 16 are unaffected.(CVE-2026-14672)

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 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.(CVE-2026-14677)

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 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.(CVE-2026-14678)

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 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.(CVE-2026-14679)

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 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.(CVE-2026-14680)

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 18.5 and 17.11 are affected. Versions before PostgreSQL 17 are unaffected.(CVE-2026-14681)

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 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.(CVE-2026-15741)

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 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.(CVE-2026-15742)

Type confusion in PostgreSQL "portal"/cursor lifecycle allows a user to execute arbitrary code as the operating system user running the database, via re-creation of a cursor or other portal with different types. Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.(CVE-2026-16239)

Integer underflow in PostgreSQL ECPG allows a database server administrator to achieve temporary denial of service against the ECPG client via sending a bytea value lacking the mandatory prefix. The client overwrites a huge memory region with bytes outside attacker knowledge or control. This typically yields a simple SIGSEGV, but rare cases might achieve client-specific integrity impact via the write. Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.(CVE-2026-16241)

Buffer over-read in PostgreSQL ascii() SQL function allows a user to disclose up to 3 bytes after the end of a specific allocation, via a crafted text value. This is the same class of defect that CVE-2026-2006 fixed, though this instance has less impact. Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.(CVE-2026-18024)

Heap buffer overflow in PostgreSQL pg_dump of long function transform lists allows an object creator to execute arbitrary code as the operating system user running pg_dump, via a crafted transform list. Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.(CVE-2026-19385)

Untrusted data inclusion in PostgreSQL psql COPY may allow a server administrator to elicit execution of data lines as psql commands, via error injection. If the "COPY FROM STDIN" or "\copy FROM STDIN" command fails before the server indicates that it awaits input rows, psql processes the in-line data rows as psql commands. "COPY FROM" with a filename is unaffected. The server administrator has no inherent control over the data rows, so a complete attack requires the attacker to separately acquire control of both the server and the data rows. Alternatively, an attacker controlling data rows alone might complete an attack through a coincidental error that they don't control. Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.(CVE-2026-6464)

Incorrect ownership assignment in PostgreSQL ALTER TABLE ALTER TYPE command reassigns ownership of dependent statistics objects to the current user. This wrongly allows the table owner to run DROP STATISTICS and ALTER STATISTICS via this improper ownership. It wrongly denies those commands to the prior statistics object owner. DROP TABLE remains able to remove statistics objects, so this exploit achieves nothing in many ownership arrangements. Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.(CVE-2026-6469)

Missing authorization in PostgreSQL DDL commands allows an object creator to achieve denial of service against ALTER and DROP of the type, via creating a dependency on the type. Many DDL operations did check the privilege, but assigning a range subtype and referencing the type from an SQL expression did not. Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.(CVE-2026-6470)

Missing authorization in PostgreSQL logical decoding allows a non-superuser holding REPLICATION privilege to dlopen any file visible to the operating system account running the server, via the choice of logical decoding plugin. This in turn runs arbitrary code as that account. Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.(CVE-2026-6471)

Severity

8.8 (High)


                    
                      CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

URL

Type

	https://www.openeuler.org/zh/security/security-bu…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-14662	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-14663	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-14664	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-14666	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-14668	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-14669	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-14670	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-14671	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-14672	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-14677	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-14678	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-14679	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-14680	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-14681	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-15741	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-15742	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-16239	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-16241	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-18024	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-18408	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-19385	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-6464	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-6469	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-6470	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-6471	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "postgresql-17-17.11-1.oe2403sp3.aarch64.rpm",
          "postgresql-17-contrib-17.11-1.oe2403sp3.aarch64.rpm",
          "postgresql-17-debuginfo-17.11-1.oe2403sp3.aarch64.rpm",
          "postgresql-17-debugsource-17.11-1.oe2403sp3.aarch64.rpm",
          "postgresql-17-docs-17.11-1.oe2403sp3.aarch64.rpm",
          "postgresql-17-plperl-17.11-1.oe2403sp3.aarch64.rpm",
          "postgresql-17-plpython3-17.11-1.oe2403sp3.aarch64.rpm",
          "postgresql-17-pltcl-17.11-1.oe2403sp3.aarch64.rpm",
          "postgresql-17-private-devel-17.11-1.oe2403sp3.aarch64.rpm",
          "postgresql-17-private-libs-17.11-1.oe2403sp3.aarch64.rpm",
          "postgresql-17-server-17.11-1.oe2403sp3.aarch64.rpm",
          "postgresql-17-server-devel-17.11-1.oe2403sp3.aarch64.rpm",
          "postgresql-17-static-17.11-1.oe2403sp3.aarch64.rpm",
          "postgresql-17-test-17.11-1.oe2403sp3.aarch64.rpm",
          "postgresql-17-upgrade-17.11-1.oe2403sp3.aarch64.rpm",
          "postgresql-17-upgrade-devel-17.11-1.oe2403sp3.aarch64.rpm"
        ],
        "noarch": [
          "postgresql-17-test-rpm-macros-17.11-1.oe2403sp3.noarch.rpm"
        ],
        "src": [
          "postgresql-17-17.11-1.oe2403sp3.src.rpm"
        ],
        "x86_64": [
          "postgresql-17-17.11-1.oe2403sp3.x86_64.rpm",
          "postgresql-17-contrib-17.11-1.oe2403sp3.x86_64.rpm",
          "postgresql-17-debuginfo-17.11-1.oe2403sp3.x86_64.rpm",
          "postgresql-17-debugsource-17.11-1.oe2403sp3.x86_64.rpm",
          "postgresql-17-docs-17.11-1.oe2403sp3.x86_64.rpm",
          "postgresql-17-plperl-17.11-1.oe2403sp3.x86_64.rpm",
          "postgresql-17-plpython3-17.11-1.oe2403sp3.x86_64.rpm",
          "postgresql-17-pltcl-17.11-1.oe2403sp3.x86_64.rpm",
          "postgresql-17-private-devel-17.11-1.oe2403sp3.x86_64.rpm",
          "postgresql-17-private-libs-17.11-1.oe2403sp3.x86_64.rpm",
          "postgresql-17-server-17.11-1.oe2403sp3.x86_64.rpm",
          "postgresql-17-server-devel-17.11-1.oe2403sp3.x86_64.rpm",
          "postgresql-17-static-17.11-1.oe2403sp3.x86_64.rpm",
          "postgresql-17-test-17.11-1.oe2403sp3.x86_64.rpm",
          "postgresql-17-upgrade-17.11-1.oe2403sp3.x86_64.rpm",
          "postgresql-17-upgrade-devel-17.11-1.oe2403sp3.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:24.03-LTS-SP3",
        "name": "postgresql-17",
        "purl": "pkg:rpm/openEuler/postgresql-17\u0026distro=openEuler-24.03-LTS-SP3"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "17.11-1.oe2403sp3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "High"
  },
  "details": "PostgreSQL client programs\r\n\r\nSecurity Fix(es):\n\nInteger 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\u0026apos;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 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.(CVE-2026-14662)\n\nCleartext 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 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.(CVE-2026-14663)\n\nHeap 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 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.(CVE-2026-14664)\n\nIncomplete 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\u0026apos;s pattern of privilege removal and role-specific row security policies.  Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.(CVE-2026-14666)\n\nType 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 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.(CVE-2026-14668)\n\nHeap 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 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.(CVE-2026-14669)\n\nHeap 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 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.(CVE-2026-14670)\n\nType confusion in PostgreSQL module \u0026quot;refint\u0026quot; allows an object creator to execute arbitrary code as the operating system user running the database.  The fix for this emerged as a non-security bug report, and the fix appear in the git repository with subject \u0026quot;refint: Remove plan cache.\u0026quot;, without a CVE number.  Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.(CVE-2026-14671)\n\nObservable 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 18.5, 17.11, and 16.15 are affected.  Versions before PostgreSQL 16 are unaffected.(CVE-2026-14672)\n\nInteger 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 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.(CVE-2026-14677)\n\nBuffer 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 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.(CVE-2026-14678)\n\nStack 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 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.(CVE-2026-14679)\n\nType confusion with PostgreSQL \u0026quot;internal\u0026quot; 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 \u0026quot;internal\u0026quot; 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 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.(CVE-2026-14680)\n\nImproper 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 18.5 and 17.11 are affected.  Versions before PostgreSQL 17 are unaffected.(CVE-2026-14681)\n\nSQL 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 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.(CVE-2026-15741)\n\nInteger 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 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.(CVE-2026-15742)\n\nType confusion in PostgreSQL \u0026quot;portal\u0026quot;/cursor lifecycle allows a user to execute arbitrary code as the operating system user running the database, via re-creation of a cursor or other portal with different types.  Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.(CVE-2026-16239)\n\nInteger underflow in PostgreSQL ECPG allows a database server administrator to achieve temporary denial of service against the ECPG client via sending a bytea value lacking the mandatory prefix.  The client overwrites a huge memory region with bytes outside attacker knowledge or control.  This typically yields a simple SIGSEGV, but rare cases might achieve client-specific integrity impact via the write.  Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.(CVE-2026-16241)\n\nBuffer over-read in PostgreSQL ascii() SQL function allows a user to disclose up to 3 bytes after the end of a specific allocation, via a crafted text value.  This is the same class of defect that CVE-2026-2006 fixed, though this instance has less impact.  Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.(CVE-2026-18024)\n\nUntrusted data inclusion in pg_dump in PostgreSQL allows a malicious superuser of the origin server to inject arbitrary code for restore-time execution as the client operating system account running psql to restore the dump, via psql \\restrict meta-command input expansion.  The fix for CVE-2025-8714 introduced \\restrict and \\unrestrict to block this attack, but \\unrestrict itself was sufficient for an attack.  pg_dumpall is also affected.  pg_restore is affected when used to generate a plain-format dump.  Non-core use of \\restrict would be affected, but we\u0026apos;ve not identified non-core use.  Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.(CVE-2026-18408)\n\nHeap buffer overflow in PostgreSQL pg_dump of long function transform lists allows an object creator to execute arbitrary code as the operating system user running pg_dump, via a crafted transform list.  Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.(CVE-2026-19385)\n\nUntrusted data inclusion in PostgreSQL psql COPY may allow a server administrator to elicit execution of data lines as psql commands, via error injection.  If the \u0026quot;COPY FROM STDIN\u0026quot; or \u0026quot;\\copy FROM STDIN\u0026quot; command fails before the server indicates that it awaits input rows, psql processes the in-line data rows as psql commands.  \u0026quot;COPY FROM\u0026quot; with a filename is unaffected.  The server administrator has no inherent control over the data rows, so a complete attack requires the attacker to separately acquire control of both the server and the data rows.  Alternatively, an attacker controlling data rows alone might complete an attack through a coincidental error that they don\u0026apos;t control.  Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.(CVE-2026-6464)\n\nIncorrect ownership assignment in PostgreSQL ALTER TABLE ALTER TYPE command reassigns ownership of dependent statistics objects to the current user.  This wrongly allows the table owner to run DROP STATISTICS and ALTER STATISTICS via this improper ownership.  It wrongly denies those commands to the prior statistics object owner.  DROP TABLE remains able to remove statistics objects, so this exploit achieves nothing in many ownership arrangements.  Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.(CVE-2026-6469)\n\nMissing authorization in PostgreSQL DDL commands allows an object creator to achieve denial of service against ALTER and DROP of the type, via creating a dependency on the type.  Many DDL operations did check the privilege, but assigning a range subtype and referencing the type from an SQL expression did not.  Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.(CVE-2026-6470)\n\nMissing authorization in PostgreSQL logical decoding allows a non-superuser holding REPLICATION privilege to dlopen any file visible to the operating system account running the server, via the choice of logical decoding plugin.  This in turn runs arbitrary code as that account.  Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.(CVE-2026-6471)",
  "id": "OESA-2026-3424",
  "modified": "2026-08-20T09:57:14Z",
  "published": "2026-08-20T09:57:14Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3424"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-14662"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-14663"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-14664"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-14666"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-14668"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-14669"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-14670"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-14671"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-14672"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-14677"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-14678"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-14679"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-14680"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-14681"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-15741"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-15742"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-16239"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-16241"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-18024"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-18408"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-19385"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6464"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6469"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6470"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6471"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "postgresql-17 security update",
  "upstream": [
    "CVE-2026-14662",
    "CVE-2026-14663",
    "CVE-2026-14664",
    "CVE-2026-14666",
    "CVE-2026-14668",
    "CVE-2026-14669",
    "CVE-2026-14670",
    "CVE-2026-14671",
    "CVE-2026-14672",
    "CVE-2026-14677",
    "CVE-2026-14678",
    "CVE-2026-14679",
    "CVE-2026-14680",
    "CVE-2026-14681",
    "CVE-2026-15741",
    "CVE-2026-15742",
    "CVE-2026-16239",
    "CVE-2026-16241",
    "CVE-2026-18024",
    "CVE-2026-18408",
    "CVE-2026-19385",
    "CVE-2026-6464",
    "CVE-2026-6469",
    "CVE-2026-6470",
    "CVE-2026-6471"
  ]
}

OPENSUSE-SU-2026:11552-1

Vulnerability from csaf_opensuse - Published: 2026-08-19 00:00 - Updated: 2026-09-17 17:20

Summary

postgresql14-14.24-1.1 on GA media

Severity

Moderate

Scope

24 vulnerabilities in this advisory, including CVE-2026-18408.

CVE-2026-18408

6.5 (Medium)


                
                  CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

Recommended: 48 products

Open the full advisory

OPENSUSE-SU-2026:11553-1

Vulnerability from csaf_opensuse - Published: 2026-08-19 00:00 - Updated: 2026-09-17 17:20

Summary

postgresql15-15.19-1.1 on GA media

Severity

Moderate

Scope

24 vulnerabilities in this advisory, including CVE-2026-18408.

CVE-2026-18408

6.5 (Medium)


                
                  CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

Recommended: 48 products

Open the full advisory

OPENSUSE-SU-2026:11554-1

Vulnerability from csaf_opensuse - Published: 2026-08-19 00:00 - Updated: 2026-09-17 17:20

Summary

postgresql16-16.15-1.1 on GA media

Severity

Moderate

Scope

25 vulnerabilities in this advisory, including CVE-2026-18408.

CVE-2026-18408

6.5 (Medium)


                
                  CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

Recommended: 48 products

Open the full advisory

OPENSUSE-SU-2026:11555-1

Vulnerability from csaf_opensuse - Published: 2026-08-19 00:00 - Updated: 2026-09-17 17:20

Summary

postgresql17-17.11-1.1 on GA media

Severity

Moderate

Scope

25 vulnerabilities in this advisory, including CVE-2026-18408.

CVE-2026-18408

6.5 (Medium)


                
                  CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

Recommended: 48 products

Open the full advisory

OPENSUSE-SU-2026:11565-1

Vulnerability from csaf_opensuse - Published: 2026-08-21 00:00 - Updated: 2026-09-17 17:20

Summary

libecpg6-18.6-1.1 on GA media

Severity

Moderate

Scope

28 vulnerabilities in this advisory, including CVE-2026-18408.

CVE-2026-18408

6.5 (Medium)


                
                  CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

Recommended: 64 products

Open the full advisory

OPENSUSE-SU-2026:21699-1

Vulnerability from csaf_opensuse - Published: 2026-08-30 15:40 - Updated: 2026-09-17 17:42

Summary

Security update for postgresql14

Severity

Important

Scope

24 vulnerabilities in this advisory, including CVE-2026-18408.

CVE-2026-18408

6.5 (Medium)


                
                  CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

Recommended: 45 products

Open the full advisory

OPENSUSE-SU-2026:21700-1

Vulnerability from csaf_opensuse - Published: 2026-08-30 15:41 - Updated: 2026-09-17 17:43

Summary

Security update for postgresql15

Severity

Important

Scope

24 vulnerabilities in this advisory, including CVE-2026-18408.

CVE-2026-18408

6.5 (Medium)


                
                  CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

Recommended: 45 products

Open the full advisory

OPENSUSE-SU-2026:21701-1

Vulnerability from csaf_opensuse - Published: 2026-08-30 15:41 - Updated: 2026-09-17 17:43

Summary

Security update for postgresql16

Severity

Important

Scope

25 vulnerabilities in this advisory, including CVE-2026-18408.

CVE-2026-18408

6.5 (Medium)


                
                  CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

Recommended: 45 products

Open the full advisory

OPENSUSE-SU-2026:21702-1

Vulnerability from csaf_opensuse - Published: 2026-08-30 15:41 - Updated: 2026-09-17 17:43

Summary

Security update for postgresql17

Severity

Important

Scope

25 vulnerabilities in this advisory, including CVE-2026-18408.

CVE-2026-18408

6.5 (Medium)


                
                  CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

Recommended: 45 products

Open the full advisory

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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Publication & reservation Sightings KEV catalogs Other timestamps

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-18408 (GCVE-0-2026-18408)

OESA-2026-3424 (CVE-2026-14662)

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour