VulnerabilityPublished 12 Nov 2026

CVE-2026-120146: PostgreSQL · Missing Authorization

Affects PostgreSQLSource CVE Database V5

Compare

Not known to be exploited · CVSS 4.3 Medium · fixed in 18.7 : update PostgreSQL when convenient.

Data as of 12 Nov 2026, 14:36 UTC

CVSS 3.1 base score

4.3Medium

How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none

CVSS scores by source
CNA (PostgreSQL)	CVSS 3.1	4.3

Patch: Available – fixed in 18.7, 17.12, 16.16 +2

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Attack Vector: Network
Attack Complexity: Low
Privileges Required: Low
User Interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: Low
Availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: Low: The attacker is authorized with (i.e., requires) privileges that provide basic user capabilities that could normally affect only settings and files owned by a user. Alternatively, an attacker with Low privileges may have the ability to cause an impact only to non-sensitive resources.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: None: There is no loss of confidentiality within the impacted component.
Integrity: Low: Modification of data is possible, but the attacker does not have control over the consequence of a modification, or the amount of modification is limited. The data modification does not have a direct, serious impact on the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 12 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 12 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
PostgreSQL	Affected >=18 <18.7	Fixed in 18.7
PostgreSQL	Affected >=17 <17.12	Fixed in 17.12
PostgreSQL	Affected >=16 <16.16	Fixed in 16.16
PostgreSQL	Affected >=15 <15.20	Fixed in 15.20
PostgreSQL	Affected <14.25	Fixed in 14.25

AI-suggested

This vulnerability has been fixed in PostgreSQL versions 18.7, 17.12, 16.16, 15.20, and 14.25. Users should upgrade affected PostgreSQL installations to these or later versions to remediate the issue. No additional mitigation steps are indicated beyond applying the official patches.

Description

CVE-2026-120146 is a vulnerability in PostgreSQL where missing authorization checks in the REASSIGN OWNED command allow a role with INHERIT privilege but without SET privilege to transfer objects to the granted role. Additionally, it permits reassignment of database ownership without requiring the CREATEDB privilege. This issue affects PostgreSQL versions prior to 18.7, 17.12, 16.16, 15.20, and 14.25.

Impact

An attacker with a role granted INHERIT privilege but not SET privilege can transfer database objects improperly, potentially escalating privileges or altering ownership without proper authorization. The vulnerability does not impact confidentiality or availability but can lead to unauthorized modification of database object ownership, which may facilitate privilege escalation or unauthorized access within the database environment.

References

postgresql.org/support/security/CVE-2026-120146/ (opens in a new tab)

Community reviews

Loading reviews…

Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 12 Nov 2026, 14:36 UTC

Technical details

References

Community reviews

Related threats