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4.3 Medium

CVE-2026-2003 Improper validation of type "oidvector" in PostgreSQL allows a database user to disclose a few bytes of server memory

Description

Improper validation of type "oidvector" in PostgreSQL allows a database user to disclose a few bytes of server memory. We have not ruled out viability of attacks that arrange for presence of confidential information in disclosed bytes, but they seem unlikely. Versions before PostgreSQL 18.2, 17.8, 16.12, 15.16, and 14.21 are affected.

Affected products and versions

Product Affected versions Fixed in
postgresql 18 18 → < 18.2 18.2
postgresql 17 17 → < 17.8 17.8
postgresql 16 16 → < 16.12 16.12
postgresql 15 15 → < 15.16 15.16
postgresql 14.21 earliest → < 14.21 14.21

References

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