PostgreSQL missing validation of multibyte character length executes arbitrary code
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.
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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-2006US | — | — | ||
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 ex… | ||||
02
references
External citations — patches, advisories, analysis.
- https://access.redhat.com/errata/RHSA-2026:19009WEB
- https://access.redhat.com/errata/RHSA-2026:19010WEB
- https://access.redhat.com/errata/RHSA-2026:3730WEB
- https://access.redhat.com/errata/RHSA-2026:3887WEB
- https://access.redhat.com/errata/RHSA-2026:3896WEB
- https://access.redhat.com/errata/RHSA-2026:4024WEB
- https://access.redhat.com/errata/RHSA-2026:4059WEB
- https://access.redhat.com/errata/RHSA-2026:4063WEB
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