PostgreSQL amcheck · Untrusted Search Path
Source GCVE Database
Not known to be exploited · CVSS 3.8 Low · fixed in 18.6 : update PostgreSQL when convenient.
Data as of 12 Nov 2026, 23:24 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 19% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 18.6, 16.15, 15.19 +2
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 13 Aug 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 13 Nov 2026.
What to do
Upgrade PostgreSQL to 18.6, 16.15, 15.19 or 14.24; postgresql/postgresql to 18.5, 16.15, 15.19 or 14.24.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| PostgreSQL | Affected
| Fixed in
|
| PostgreSQL | Affected
| Fixed in
|
| PostgreSQL | Affected
| Fixed in
|
| PostgreSQL | Affected
| Fixed in
|
Postgresqlpostgresql/postgresqlpkg:deb/postgresql/postgresqlOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Upgrade PostgreSQL to versions 14.24, 15.19, 16.15, or 18.5 or later where this vulnerability is fixed.
Description
A vulnerability in PostgreSQL's amcheck extension allows a user with EXECUTE privilege on the amcheck function to execute arbitrary functions as the owners of expression indexes by setting a malicious search path before invoking the function. This affects PostgreSQL major versions 14, 15, 16, and 18 prior to minor versions 14.24, 15.19, 16.15, and 18.5 respectively. PostgreSQL 17 is not affected.