CVE-2026-61820Network attack vectorHinoki check available

Privilege escalation via unescaped primary-key identifiers

Published Sep 18, 2026 · Updated Sep 18, 2026

SQL injection in pgpartman's pg_partman before 5.5.0 allows remote authenticated users to execute SQL with background-worker privileges. inherit_template_properties() manually double-quotes primary-key names from pg_attribute.attname without escaping embedded quotes, allowing a crafted identifier to break out of ALTER TABLE. A partman_user must own a template table and await child creation; the default superuser worker role permits database-wide compromise and operating-system commands as the PostgreSQL account.

CVSS severity8.5
High
EPSS probability0.73%
Next 30 days · Oct 20, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

SQL injection in pgpartman's pg_partman before 5.5.0 allows remote authenticated users to execute SQL with background-worker privileges. inherit_template_properties() manually double-quotes primary-key names from pg_attribute.attname without escaping embedded quotes, allowing a crafted identifier to break out of ALTER TABLE. A partman_user must own a template table and await child creation; the default superuser worker role permits database-wide compromise and operating-system commands as the PostgreSQL account.

The record

CVE
CVE-2026-61820
Published
Sep 18, 2026
Updated
Sep 18, 2026
Vendor
pgpartman
Product
pg_partman
Classifications
CWE-89, T1068
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 18, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 5.5.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

pgpartman · pg_partmanversion=< 5.5.0

Published CVSS scores

8.5GitHubCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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