CVE-2026-83534Public exploitNetwork attack vector

Superuser escalation via privileged parallel masking worker

Published Sep 6, 2026 · Updated Sep 9, 2026

Privilege escalation in DALIBO PostgreSQL Anonymizer before 3.2.0 allows remote authenticated users to execute code with superuser privileges. The parallel masking worker connects as the bootstrap superuser and runs an UPDATE that expands attacker-owned table rules or triggers with that authority. A login role must own a table, attach a rule or trigger, label a column for masking, and invoke the PUBLIC function; success grants full database-cluster control.

CVSS severity6.4
Medium
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Privilege escalation in DALIBO PostgreSQL Anonymizer before 3.2.0 allows remote authenticated users to execute code with superuser privileges. The parallel masking worker connects as the bootstrap superuser and runs an UPDATE that expands attacker-owned table rules or triggers with that authority. A login role must own a table, attach a rule or trigger, label a column for masking, and invoke the PUBLIC function; success grants full database-cluster control.

The record

CVE
CVE-2026-83534
Published
Sep 6, 2026
Updated
Sep 9, 2026
Vendor
DALIBO
Product
PostgreSQL Anonymizer
Classifications
CWE-250, T1068
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 6, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 9, 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=1 <3.2.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

DALIBO · PostgreSQL Anonymizerversion=1 <3.2.0

Published CVSS scores

6.4PostgreSQL CNACVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-250Execution with Unnecessary Privileges
T1068Exploitation for Privilege Escalation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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