Heap buffer overflow in PostgreSQL regexp allows the query author to execute arbitrary code as the operating system user running the database, via text that would not pass encoding validation. This shares heritage with CVE-2026-2006, but this case involved unanticipated data growth when round-tripped through pg_wchar. Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.
Metrics
Affected Vendors & Products
References
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| https://www.postgresql.org/support/security/CVE-2026-14664/ |
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History
Thu, 13 Aug 2026 16:30:00 +0000
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Thu, 13 Aug 2026 15:00:00 +0000
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Thu, 13 Aug 2026 13:15:00 +0000
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| Description | Heap buffer overflow in PostgreSQL regexp allows the query author to execute arbitrary code as the operating system user running the database, via text that would not pass encoding validation. This shares heritage with CVE-2026-2006, but this case involved unanticipated data growth when round-tripped through pg_wchar. Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected. | |
| Title | PostgreSQL regexp heap buffer overflow executes arbitrary code | |
| Weaknesses | CWE-122 | |
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cvssV3_1
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Status: PUBLISHED
Assigner: PostgreSQL
Published:
Updated: 2026-08-13T15:34:41.339Z
Reserved: 2026-07-03T20:28:09.038Z
Link: CVE-2026-14664
Updated: 2026-08-13T15:34:35.312Z
Status : Received
Published: 2026-08-13T13:17:43.847
Modified: 2026-08-13T16:17:55.720
Link: CVE-2026-14664
No data.
OpenCVE Enrichment
Updated: 2026-08-13T15:00:04Z