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CVE-2026-2006NVD
Vulnerability Summary
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.
CVSS v3.1 Base Metrics — Score 8.8 (HIGH)
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
Affected & Patched Versions
- Postgresql Postgresql >= 14.0 and < 14.21
- Postgresql Postgresql >= 15.0 and < 15.16
- Postgresql Postgresql >= 16.0 and < 16.12
- Postgresql Postgresql >= 17.0 and < 17.8
- Postgresql Postgresql >= 18.0 and < 18.2
- Postgresql Postgresql 14.21
- Postgresql Postgresql 15.16
- Postgresql Postgresql 16.12
- Postgresql Postgresql 17.8
- Postgresql Postgresql 18.2
External 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