Read the docs
TI-2026-82101 Aliases CVE-2026-105620GHSA-mvh5-mj42-8xc9

PostgreSQL Anonymizer: masked role reads real data via sub-query rule

Priority LOW 28CWE-862Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-862.

Summary

PostgreSQL Anonymizer from DALIBO, from version 1 before 3.3.0, does not mask data returned by a sub-query inside a masking rule. A low-privileged masked role can read the authentic data of masked tables, which breaks the confidentiality of the protected data. The weakness is classified as CWE-862 (Missing Authorization).

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

PostgreSQL Anonymizer doesn't mask data returned by a sub-query in a rule. The problem is resolved in PostgreSQL Anonymizer 3.3.0 and later versions.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00201 10th percentileScored 2026-11-07
Fix Fixed PostgreSQL Anonymizer (DALIBO): 3.3.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
DALIBOPostgreSQL Anonymizer1 to before 3.3.03.3.0Patch availableCNA
  • PostgreSQL Anonymizer VendorDALIBO Affected 1 to before 3.3.0 Fixed in 3.3.0 Patch available CNA

Remediation

Upgrade PostgreSQL Anonymizer to version 3.3.0 or later, which fixes the problem.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

  • Fix · CNA PostgreSQL Anonymizer (DALIBO) Fixed in 3.3.0

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    DALIBO PostgreSQL Anonymizer 3.3.0

    12 records Highest priority Priority LOW 12 LOW

    Other records, highest priority first

    • TI-2026-82102 Protection mechanism failure in PostgreSQL Anonymizer leaks anonymized dataPriority LOW 28
    • TI-2026-82099 PostgreSQL Anonymizer skips masking for queries through parent tablesPriority LOW 25
    • TI-2026-82098 Cached plans expose unmasked data in PostgreSQL AnonymizerPriority LOW 25
    Show all 12 records →

Timeline

  1. 2026-10-28 Threatist record created from CVE-2026-105620
  2. 2026-10-28 Alias added: GHSA-mvh5-mj42-8xc9
  3. 2026-10-30 Priority changed: MEDIUM → LOW
  4. 2026-11-05 CISA SSVC decision points changed

References

Other 1

  • TI-2025-05130 Cursor allows PostgreSQL Anonymizer masked user to gain unauthorized access to authentic data CVSS 3.1MEDIUM 6.5
  • TI-2026-15944 PostgreSQL Anonymizer: unprivileged masked users can execute code via operators, domain casts and view subqueries CVSS 3.1HIGH 8.8
  • TI-2024-02174 Improper Input Validation in PostgreSQL Anonymizer 1.2 allows table owner to gain superuser privileges via masking rule CVSS 3.1HIGH 8.8
  • TI-2026-08447 PostgreSQL Anonymizer: malicious column name allows SQL injection via anon.k_anonymity() function CVSS 3.1HIGH 8.8
  • TI-2026-01997 Uncontrolled search path in DALIBO PostgreSQL Anonymizer CVSS 3.1HIGH 8.0
  • TI-2026-01996 Uncontrolled search path in DALIBO PostgreSQL Anonymizer CVSS 3.1HIGH 8.0
See all 23 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences