Integer wraparound in PostgreSQL generation memory contexts allows a database user to execute arbitrary code as the operating system user running the database, via freeing an allocation larger than 1 GB and causing its block to be reused for smaller chunks whose back-pointer offset cannot represent that position. Within major versions 16-18, minor versions before PostgreSQL 18.7, 17.12, and 16.16 are affected. Versions before PostgreSQL 16 are unaffected.
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Fixes
Solution
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Workaround
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References
| Link | Providers |
|---|---|
| https://www.postgresql.org/support/security/CVE-2026-116328/ |
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History
Thu, 12 Nov 2026 14:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Integer wraparound in PostgreSQL generation memory contexts allows a database user to execute arbitrary code as the operating system user running the database, via freeing an allocation larger than 1 GB and causing its block to be reused for smaller chunks whose back-pointer offset cannot represent that position. Within major versions 16-18, minor versions before PostgreSQL 18.7, 17.12, and 16.16 are affected. Versions before PostgreSQL 16 are unaffected. | |
| Title | PostgreSQL generation memory context integer wraparound executes arbitrary code | |
| Weaknesses | CWE-190 | |
| References |
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| Metrics |
cvssV3_1
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MITRE
Status: PUBLISHED
Assigner: PostgreSQL
Published:
Updated: 2026-11-12T14:15:16.239Z
Reserved: 2026-10-26T03:52:44.054Z
Link: CVE-2026-116328
Vulnrichment
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NVD
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Redhat
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OpenCVE Enrichment
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Weaknesses