# ALSA-2026:28208: Security update for 13 packages

ALSA-2026:28208, released June 23, 2026, fixes 5 CVEs across 13 products. None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/alsa-2026-28208
- Platform: Linux
- Released: Jun 23, 2026
- Priority: High (Closes CVE-2026-6473, high severity)
- CVEs: 5, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://osv.dev/vulnerability/ALSA-2026:28208

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [postgresql](https://patchblox.com/security/data/product/linux/postgresql.md) | almalinux 8 | 13.23-3.module_el8.10.0+4198+7a62a2ce |
| [postgresql-contrib](https://patchblox.com/security/data/product/linux/postgresql-contrib.md) | almalinux 8 | 13.23-3.module_el8.10.0+4198+7a62a2ce |
| [postgresql-docs](https://patchblox.com/security/data/product/linux/postgresql-docs.md) | almalinux 8 | 13.23-3.module_el8.10.0+4198+7a62a2ce |
| [postgresql-plperl](https://patchblox.com/security/data/product/linux/postgresql-plperl.md) | almalinux 8 | 13.23-3.module_el8.10.0+4198+7a62a2ce |
| [postgresql-plpython3](https://patchblox.com/security/data/product/linux/postgresql-plpython3.md) | almalinux 8 | 13.23-3.module_el8.10.0+4198+7a62a2ce |
| [postgresql-pltcl](https://patchblox.com/security/data/product/linux/postgresql-pltcl.md) | almalinux 8 | 13.23-3.module_el8.10.0+4198+7a62a2ce |
| [postgresql-server](https://patchblox.com/security/data/product/linux/postgresql-server.md) | almalinux 8 | 13.23-3.module_el8.10.0+4198+7a62a2ce |
| [postgresql-server-devel](https://patchblox.com/security/data/product/linux/postgresql-server-devel.md) | almalinux 8 | 13.23-3.module_el8.10.0+4198+7a62a2ce |
| [postgresql-static](https://patchblox.com/security/data/product/linux/postgresql-static.md) | almalinux 8 | 13.23-3.module_el8.10.0+4198+7a62a2ce |
| [postgresql-test](https://patchblox.com/security/data/product/linux/postgresql-test.md) | almalinux 8 | 13.23-3.module_el8.10.0+4198+7a62a2ce |
| [postgresql-test-rpm-macros](https://patchblox.com/security/data/product/linux/postgresql-test-rpm-macros.md) | almalinux 8 | 13.23-3.module_el8.10.0+4198+7a62a2ce |
| [postgresql-upgrade](https://patchblox.com/security/data/product/linux/postgresql-upgrade.md) | almalinux 8 | 13.23-3.module_el8.10.0+4198+7a62a2ce |
| [postgresql-upgrade-devel](https://patchblox.com/security/data/product/linux/postgresql-upgrade-devel.md) | almalinux 8 | 13.23-3.module_el8.10.0+4198+7a62a2ce |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-6473](https://patchblox.com/security/data/cve/CVE-2026-6473.md) | High | PostgreSQL server undersizes allocations, via integer wraparound | 8.8 | 0.0101 |  |
| [CVE-2026-6478](https://patchblox.com/security/data/cve/CVE-2026-6478.md) | High | PostgreSQL discloses MD5-hashed passwords via covert timing channel | 8.8 | 0.0056 |  |
| [CVE-2026-6477](https://patchblox.com/security/data/cve/CVE-2026-6477.md) | High | PostgreSQL libpq lo_* functions let server superuser overwrite client stack memory | 8.8 | 0.0045 |  |
| [CVE-2026-6475](https://patchblox.com/security/data/cve/CVE-2026-6475.md) | High | PostgreSQL pg_basebackup and pg_rewind can overwrite unrelated files of origin superuser choice | 8.8 | 0.0041 |  |
| [CVE-2026-6637](https://patchblox.com/security/data/cve/CVE-2026-6637.md) | High | PostgreSQL refint allows stack buffer overflow and SQL injection | 8.8 | 0.0037 |  |

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Data as of 2026-11-07T18:46:35Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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