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Back to active CVEs
High · CVSS 8.8CVE-2026-120145

PostgreSQL logical replication can write to subscriber system catalogs, executing arbitrary codeCVE-2026-120145

Answer in brief

CVE-2026-120145 records a High severity (CVSS 8.8) vulnerability in PostgreSQL logical replication can write to subscriber system catalogs, executing arbitrary code. The current sources do not mark it as known exploited. The current feed maps n/a/PostgreSQL (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Nov 12, 2026Updated Nov 12, 2026Source checked Nov 12, 2026First seen by HOL Nov 12, 2026Material review Nov 12, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 8.8
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 8.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps n/a/PostgreSQL (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
n/a/PostgreSQLgeneric>=18 <18.7 || >=17 <17.12 || >=16 <16.16 || >=15 <15.20 || >=0 <14.2518.7, 17.12, 16.16, 15.20, 14.25

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for n/a/PostgreSQL.
  2. 2Review the reported fix. Update n/a/PostgreSQL to 18.7 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Nov 12, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 12, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Nov 12, 2026

Sources and claim methodology

  • Source referencepostgresql.org
Upstream source description

Missing authorization in PostgreSQL logical replication allows a compromised publisher to execute arbitrary code as the operating system user running the superuser-owned subscription, via naming a system catalog as a replication target. Only subscriptions owned by a superuser are vulnerable. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • PostgreSQL dict_int reads beyond zero-length tokensSame n/a/postgresql package
  • PostgreSQL plperl blessed-reference type confusion may execute arbitrary codeSame n/a/postgresql package
  • PostgreSQL COPY error context uses freed field storageSame n/a/postgresql package
  • PostgreSQL DROP OWNED can remove restrictive row security policies from non-owned tablesSame n/a/postgresql package
  • PostgreSQL MERGE can place the wrong row in a trigger transition tableSame n/a/postgresql package
  • PostgreSQL "vacuumdb --missing-stats-only" lets a database owner execute code as the vacuumdb userSame n/a/postgresql package

Record context

Vulnerability class
Missing Auth
EPSS
Not reported
CWE IDs
CWE-862
Source
CVE List V5
Source checked
Nov 12, 2026
References
1 linked source
Open source record