# ALSA-2026:20585: compat-libtiff3 security update

ALSA-2026:20585, released May 26, 2026, fixes 1 CVE in compat-libtiff3 (version 3.9.4-15.el8_10). None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/alsa-2026-20585
- Platform: Linux
- Released: May 26, 2026
- Priority: High (Closes CVE-2026-4775, high severity)
- CVEs: 1, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://osv.dev/vulnerability/ALSA-2026:20585

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [compat-libtiff3](https://patchblox.com/security/data/product/linux/compat-libtiff3.md) | almalinux 8 | 3.9.4-15.el8_10 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-4775](https://patchblox.com/security/data/cve/CVE-2026-4775.md) | High | Libtiff: libtiff: arbitrary code execution or denial of service via signed integer overflow in tiff file processing | 7.8 | 0.0057 |  |

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Data as of 2026-11-07T06:34:28Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo