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    CVE-2026-2006

    Missing validation of multibyte character length in PostgreSQL text manipulation allows a database user to issue crafted queries that achieve a buffer overrun. That suffices to execute arbitrary code as the operating system user running the database. Versions before PostgreSQL 18.2, 17.8, 16.12, 15.16, and 14.21 are affected.

    Published:Feb 12, 2026
    Last Modified:Apr 17, 2026
    EPS:Feb 12, 2026
    EPSS Score:0.00034
    CVSS Score:8.8

    Affected Products

    Vendor
    Postgresql
    Product
    Postgresql

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-100 Overflow Buffers

    Related CVEs

    CVE-2026-14671 (CVSS 8.8) — Type confusion in PostgreSQL module "refint" allows an object creator to execute arbitrary code as the operati…
    CVE-2026-6471 (CVSS 7.2) — Missing authorization in PostgreSQL logical decoding allows a non-superuser holding REPLICATION privilege to d…
    CVE-2026-6470 (CVSS 4.3) — Missing authorization in PostgreSQL DDL commands allows an object creator to achieve denial of service against…
    CVE-2026-6469 (CVSS 3.8) — Incorrect ownership assignment in PostgreSQL ALTER TABLE ALTER TYPE command reassigns ownership of dependent s…
    CVE-2026-6464 (CVSS 8.1) — Untrusted data inclusion in PostgreSQL psql COPY may allow a server administrator to elicit execution of data …
    CVE-2026-19385 (CVSS 8.8) — Heap buffer overflow in PostgreSQL pg_dump of long function transform lists allows an object creator to execut…
    CVE-2026-18408 (CVSS 8.8) — Untrusted data inclusion in pg_dump in PostgreSQL allows a malicious superuser of the origin server to inject …
    CVE-2026-18024 (CVSS 4.3) — Buffer over-read in PostgreSQL ascii() SQL function allows a user to disclose up to 3 bytes after the end of a…
    CVE-2026-16241 (CVSS 3.8) — Integer underflow in PostgreSQL ECPG allows a database server administrator to achieve temporary denial of ser…
    CVE-2026-16239 (CVSS 8.8) — Type confusion in PostgreSQL "portal"/cursor lifecycle allows a user to execute arbitrary code as the operatin…

    References

    https://www.postgresql.org/support/security/CVE-2026-2006/
    https://access.redhat.com/errata/RHSA-2026:19009
    https://access.redhat.com/errata/RHSA-2026:19010
    https://access.redhat.com/errata/RHSA-2026:3730
    https://access.redhat.com/errata/RHSA-2026:3887
    https://access.redhat.com/errata/RHSA-2026:3896
    https://access.redhat.com/errata/RHSA-2026:4024
    https://access.redhat.com/errata/RHSA-2026:4059
    https://access.redhat.com/errata/RHSA-2026:4063
    https://access.redhat.com/errata/RHSA-2026:4064
    https://access.redhat.com/errata/RHSA-2026:4074
    https://access.redhat.com/errata/RHSA-2026:4075
    https://access.redhat.com/errata/RHSA-2026:4110
    https://access.redhat.com/errata/RHSA-2026:4254
    https://access.redhat.com/errata/RHSA-2026:4441
    https://access.redhat.com/errata/RHSA-2026:4475
    https://access.redhat.com/errata/RHSA-2026:4504
    https://access.redhat.com/errata/RHSA-2026:4505
    https://access.redhat.com/errata/RHSA-2026:4506
    https://access.redhat.com/errata/RHSA-2026:4509
    https://access.redhat.com/errata/RHSA-2026:4515
    https://access.redhat.com/errata/RHSA-2026:4516
    https://access.redhat.com/errata/RHSA-2026:4518
    https://access.redhat.com/errata/RHSA-2026:4524
    https://access.redhat.com/errata/RHSA-2026:4528
    https://access.redhat.com/errata/RHSA-2026:4544
    https://access.redhat.com/errata/RHSA-2026:4546
    https://access.redhat.com/errata/RHSA-2026:4547
    https://access.redhat.com/errata/RHSA-2026:4548
    https://access.redhat.com/errata/RHSA-2026:4943
    https://access.redhat.com/errata/RHSA-2026:8756
    https://access.redhat.com/security/cve/CVE-2026-2006
    https://bugzilla.redhat.com/show_bug.cgi?id=2439324
    https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2006.json

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High