PostgreSQL regexp heap buffer overflow executes arbitrary code
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||||||||
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| n/a | PostgreSQL | unaffected |
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Configuration 1 [-]
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No data.
| Vendor | Product | Versions | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Postgresql | Postgresql |
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| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-4740-1 | postgresql-15 security update |
Debian DSA |
DSA-6438-1 | postgresql-17 security update |
Ubuntu USN |
USN-8653-1 | PostgreSQL vulnerabilities |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.436% probability within 30 days)
| Link | Providers |
|---|---|
| https://www.postgresql.org/support/security/CVE-2026-14664/ |
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| Type | Values Removed | Values Added |
|---|---|---|
| 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. | 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 18.6, 17.11, 16.15, 15.19, and 14.24 are affected. |
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:* |
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Postgresql
Postgresql postgresql |
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| Vendors & Products |
Postgresql
Postgresql postgresql |
| Type | Values Removed | Values Added |
|---|---|---|
| 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 | |
| References |
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| Metrics |
cvssV3_1
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