CVE-2026-120154: PostgreSQL · Improper Protection of Alternate Path
Affects PostgreSQLSource CVE Database V5
Mentioned vulnerabilities
Not known to be exploited · CVSS 4.3 Medium · fixed in 18.7 : update PostgreSQL when convenient.
Data as of 12 Nov 2026, 14:35 UTC
Thin evidence
One scorer or none| 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:L/I:N/A:NExploitation 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.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| PostgreSQL | Affected
| Fixed in
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| PostgreSQL | Affected
| Fixed in
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| PostgreSQL | Affected
| Fixed in
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| PostgreSQL | Affected
| Fixed in
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| PostgreSQL | Affected
| Fixed in
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AI-suggested
Upgrade PostgreSQL to versions 18.7, 17.12, 16.16, 15.20, or 14.25 or later, where this vulnerability has been fixed. No other mitigation is required as the issue is resolved in these official patches.
Description
CVE-2026-120154 is a vulnerability in PostgreSQL's INSERT ... ON CONFLICT feature that allows an attacker with INSERT, UPDATE, and applicable SELECT privileges to bypass row security policies and read every row in a table. This issue affects multiple PostgreSQL versions prior to 18.7, 17.12, 16.16, 15.20, and 14.25. The vulnerability does not allow unauthorized writes. A fix is available in the specified patched versions.