PostgreSQL 18.0/18.1 pg_trgm heap-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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7.6$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in PostgreSQL 18.0/18.1. This impacts an unknown function of the component pg_trgm. Executing a manipulation can lead to heap-based overflow. This vulnerability is tracked as CVE-2026-2007. The attack can be launched remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical was found in PostgreSQL 18.0/18.1. This vulnerability affects an unknown function of the component pg_trgm. The manipulation with an unknown input leads to a heap-based overflow vulnerability. The CWE definition for the vulnerability is CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is shared for download at postgresql.org. This vulnerability was named CVE-2026-2007 since 02/05/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 298888 (Linux Distros Unpatched Vulnerability : CVE-2026-2007), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 18.2 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (298888) and CERT Bund (WID-SEC-2026-0409). Once again VulDB remains the best source for vulnerability data.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • RESF Rocky Linux
  • Open Source PostgreSQL

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.7
VulDB Meta Temp Score: 7.6

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 8.2
CNA Vector (PostgreSQL): 🔒

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 298888
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-2007

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: PostgreSQL 18.2

Timelineinfo

02/05/2026 CVE reserved
02/12/2026 +7 days Advisory disclosed
02/12/2026 +0 days VulDB entry created
03/08/2026 +24 days VulDB entry last update

Sourcesinfo

Product: postgresql.org

Advisory: postgresql.org
Status: Confirmed

CVE: CVE-2026-2007 (🔒)
GCVE (CVE): GCVE-0-2026-2007
GCVE (VulDB): GCVE-100-345772
CERT Bund: WID-SEC-2026-0409 - PostgreSQL: Mehrere Schwachstellen

Entryinfo

Created: 02/12/2026 14:33
Updated: 03/08/2026 21:02
Changes: 02/12/2026 14:33 (64), 02/13/2026 08:34 (2), 02/16/2026 12:30 (7), 03/08/2026 21:02 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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