ALPINE-CVE-2026-116304: Use After Free

Published Nov 12, 2026
·
Updated

Use after free in PostgreSQL coordination of anonymous RECORD type identifiers among parallel workers allows a database user to execute arbitrary code as the operating system user running the database, via causing one process to free a shared tuple descriptor while another process retains and later uses its address. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.

Affected Software

12 affected componentsFixes available
alpine/postgresql15<15.20-r0
15.20-r0
alpine/postgresql15<15.20-r0
15.20-r0
alpine/postgresql16<16.16-r0
16.16-r0
alpine/postgresql16<16.16-r0
16.16-r0
alpine/postgresql16<16.16-r0
16.16-r0
alpine/postgresql16<16.16-r0
16.16-r0
alpine/postgresql17<17.12-r0
17.12-r0
alpine/postgresql17<17.12-r0
17.12-r0
alpine/postgresql17<17.12-r0
17.12-r0
alpine/postgresql17<17.12-r0
17.12-r0
alpine/postgresql18<18.7-r0
18.7-r0
alpine/postgresql18<18.7-r0
18.7-r0

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade alpine/postgresql15 to a version that resolves this vulnerability.

    Fixed in 15.20-r0
  2. Upgrade

    Upgrade alpine/postgresql16 to a version that resolves this vulnerability.

    Fixed in 16.16-r0
  3. Upgrade

    Upgrade alpine/postgresql17 to a version that resolves this vulnerability.

    Fixed in 17.12-r0
  4. Upgrade

    Upgrade alpine/postgresql18 to a version that resolves this vulnerability.

    Fixed in 18.7-r0
  5. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 18.7
  6. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 17.12
  7. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 16.16
  8. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 15.20
  9. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 14.25

Event History

Nov 12, 2026
CVE Published
via OSV·03:17 PM
Data Sourced
via OSV·03:17 PM
DescriptionSeverityAffected Software

Frequently Asked Questions

1

Who can exploit this issue?

A database user can exploit it. The vulnerability is reachable through coordination of anonymous RECORD type identifiers among parallel workers.

2

What level of access does successful exploitation provide?

Successful exploitation can allow arbitrary code execution as the operating system user that runs the PostgreSQL database process. This can affect confidentiality, integrity, and availability.

3

Which PostgreSQL versions contain the fix?

The issue is fixed in PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25. Versions before those respective releases are affected.

Company

Resources

Contact

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