Description
Heap buffer overflow in PostgreSQL pg_trgm allows a database user to achieve unknown impacts via a crafted input string. The attacker has limited control over the byte patterns to be written, but we have not ruled out the viability of attacks that lead to privilege escalation. PostgreSQL 18.1 and 18.0 are affected.
References (6)
Core 6
Core References
Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:19009
Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:8756
Vendor Advisory
https://access.redhat.com/security/cve/CVE-2026-2007
Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2439320
Various Sources
https://www.postgresql.org/support/security/CVE-2026-2007/
Scores
CVSS v3
8.2
EPSS
0.0048
EPSS Percentile
38.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-120
CWE-122
Status
published
Products (2)
None/PostgreSQL
18 - 18.2
postgresql/postgresql
18.0 - 18.2
Published
Feb 12, 2026
Tracked Since
Feb 18, 2026