ALPINE-CVE-2026-18408

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Source
https://security.alpinelinux.org/vuln/CVE-2026-18408
Import Source
https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-18408.json
JSON Data
https://api.osv.dev/v1/vulns/ALPINE-CVE-2026-18408
Upstream
  • CVE-2026-18408
Published
2026-08-13T13:17:48.127Z
Modified
2026-08-15T13:30:05.564862635Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

Untrusted data inclusion in pgdump in PostgreSQL allows a malicious superuser of the origin server to inject arbitrary code for restore-time execution as the client operating system account running psql to restore the dump, via psql \restrict meta-command input expansion. The fix for CVE-2025-8714 introduced \restrict and \unrestrict to block this attack, but \unrestrict itself was sufficient for an attack. pgdumpall is also affected. pg_restore is affected when used to generate a plain-format dump. Non-core use of \restrict would be affected, but we've not identified non-core use. Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.

References

Affected packages

Alpine:v3.21
postgresql16

Package

Name
postgresql16
Purl
pkg:apk/alpine/postgresql16?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
16.15-r0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-18408.json"
postgresql17

Package

Name
postgresql17
Purl
pkg:apk/alpine/postgresql17?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
17.11-r0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-18408.json"
Alpine:v3.22
postgresql16

Package

Name
postgresql16
Purl
pkg:apk/alpine/postgresql16?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
16.15-r0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-18408.json"
postgresql17

Package

Name
postgresql17
Purl
pkg:apk/alpine/postgresql17?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
17.11-r0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-18408.json"
Alpine:v3.23
postgresql17

Package

Name
postgresql17
Purl
pkg:apk/alpine/postgresql17?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
17.11-r0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-18408.json"
postgresql18

Package

Name
postgresql18
Purl
pkg:apk/alpine/postgresql18?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
18.5-r0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-18408.json"
Alpine:v3.24
postgresql17

Package

Name
postgresql17
Purl
pkg:apk/alpine/postgresql17?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
17.11-r0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-18408.json"
postgresql18

Package

Name
postgresql18
Purl
pkg:apk/alpine/postgresql18?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
18.5-r0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-18408.json"