Distribution advisory
This page covers CVE-2026-6471 as tracked by Alpine, for the package postgresql16. The fix is available in version 16.15-r0; earlier versions remain affected.
How this vulnerability can be exploited
This issue can be reached over the network, attack complexity is low, an attacker needs administrative privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.
CVSS metrics in full
The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- Attack vector: Network — reachable from anywhere that can route to the service.
- Attack complexity: Low — the attack works reliably, with no preparation.
- Privileges required: High — administrative rights are needed first.
- User interaction: None — nobody has to be tricked into anything.
- Scope: Unchanged — the damage stays inside the vulnerable component.
- Confidentiality impact: High — total loss, or loss the attacker controls.
- Integrity impact: High — total loss, or loss the attacker controls.
- Availability impact: High — total loss, or loss the attacker controls.
Weakness class
ALPINE-CVE-2026-6471 is classified as CWE-862: Missing Authorization. No authorisation check is performed before carrying out a restricted action.
Affected software
ALPINE-CVE-2026-6471 is recorded against 3 packages.
- postgresql16 (fixed in 16.15-r0)
- postgresql17 (fixed in 17.11-r0)
- postgresql18 (fixed in 18.5-r0)
Timeline and source
Published on 13 August 2026 and last revised on 15 August 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.
References
security.alpinelinux.org (Advisory)
Other advisories for this package
postgresql16 has other advisories on record. If you are patching this one, these are worth checking on the same host:
Same weakness in other software
These advisories are the same class of weakness (CWE-862: Missing Authorization) in other software:
