# CVE-2026-52490: An issue in libtiff 85f2ac8e0b01cb7db2bbecf4a3b891bdbef67938 allows an attacker to execute arbitrary code via the process_command_opts() function in tools/tiffcrop.c

CVE-2026-52490 is fixed in 8 products on 1 platform, first by DEBIAN-CVE-2026-52490, released August 27, 2026. It is not reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/cve/CVE-2026-52490
- Priority: Urgent
- CVSS: 9.8 (Critical)
- EPSS: 0.0073
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Aug 24, 2026
- Weakness: Improper Control of Generation of Code ('Code Injection')
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-52490

## Description

An issue in libtiff 85f2ac8e0b01cb7db2bbecf4a3b891bdbef67938 allows an attacker to execute arbitrary code via the process_command_opts() function in tools/tiffcrop.c

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libtiff RHEL 8 | 0:4.0.9-39.el8_10 | [RHSA-2026:69095](https://patchblox.com/security/data/fix/linux/rhsa-2026-69095.md) | Sep 22, 2026 |
| Linux | libtiff almalinux 8 | 4.0.9-39.el8_10 | [ALSA-2026:69095](https://patchblox.com/security/data/fix/linux/alsa-2026-69095.md) | Sep 21, 2026 |
| Linux | libtiff amzn 2023 | 4.4.0-4.amzn2023.0.28 | [ALAS2023-2026-2156](https://patchblox.com/security/data/fix/linux/alas2023-2026-2156.md) | Sep 14, 2026 |
| Linux | libtiff ol 8 | 0:4.0.9-39.el8_10 | [ELSA-2026-69095](https://patchblox.com/security/data/fix/linux/elsa-2026-69095.md) | Sep 23, 2026 |
| Linux | libtiff rocky 8 | 0:4.0.9-39.el8_10 | [RLSA-2026:69095](https://patchblox.com/security/data/fix/linux/rlsa-2026-69095.md) | Sep 22, 2026 |
| Linux | libtiff-debuginfo amzn 2023 | 4.4.0-4.amzn2023.0.28 | [ALAS2023-2026-2156](https://patchblox.com/security/data/fix/linux/alas2023-2026-2156.md) | Sep 14, 2026 |
| Linux | libtiff-debugsource amzn 2023 | 4.4.0-4.amzn2023.0.28 | [ALAS2023-2026-2156](https://patchblox.com/security/data/fix/linux/alas2023-2026-2156.md) | Sep 14, 2026 |
| Linux | libtiff-devel RHEL 8 | 0:4.0.9-39.el8_10 | [RHSA-2026:69095](https://patchblox.com/security/data/fix/linux/rhsa-2026-69095.md) | Sep 22, 2026 |
| Linux | libtiff-devel almalinux 8 | 4.0.9-39.el8_10 | [ALSA-2026:69095](https://patchblox.com/security/data/fix/linux/alsa-2026-69095.md) | Sep 21, 2026 |
| Linux | libtiff-devel amzn 2023 | 4.4.0-4.amzn2023.0.28 | [ALAS2023-2026-2156](https://patchblox.com/security/data/fix/linux/alas2023-2026-2156.md) | Sep 14, 2026 |
| Linux | libtiff-devel ol 8 | 0:4.0.9-39.el8_10 | [ELSA-2026-69095](https://patchblox.com/security/data/fix/linux/elsa-2026-69095.md) | Sep 23, 2026 |
| Linux | libtiff-static amzn 2023 | 4.4.0-4.amzn2023.0.28 | [ALAS2023-2026-2156](https://patchblox.com/security/data/fix/linux/alas2023-2026-2156.md) | Sep 14, 2026 |
| Linux | libtiff-tools RHEL 8 | 0:4.0.9-39.el8_10 | [RHSA-2026:69095](https://patchblox.com/security/data/fix/linux/rhsa-2026-69095.md) | Sep 22, 2026 |
| Linux | libtiff-tools almalinux 8 | 4.0.9-39.el8_10 | [ALSA-2026:69095](https://patchblox.com/security/data/fix/linux/alsa-2026-69095.md) | Sep 21, 2026 |
| Linux | libtiff-tools amzn 2023 | 4.4.0-4.amzn2023.0.28 | [ALAS2023-2026-2156](https://patchblox.com/security/data/fix/linux/alas2023-2026-2156.md) | Sep 14, 2026 |
| Linux | libtiff-tools ol 8 | 0:4.0.9-39.el8_10 | [ELSA-2026-69095](https://patchblox.com/security/data/fix/linux/elsa-2026-69095.md) | Sep 23, 2026 |
| Linux | libtiff-tools-debuginfo amzn 2023 | 4.4.0-4.amzn2023.0.28 | [ALAS2023-2026-2156](https://patchblox.com/security/data/fix/linux/alas2023-2026-2156.md) | Sep 14, 2026 |
| Linux | tiff Debian 14 | 4.7.2-1 | [DEBIAN-CVE-2026-52490](https://patchblox.com/security/data/fix/linux/debian-cve-2026-52490.md) | Aug 27, 2026 |

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Data as of 2026-11-09T07:25:28Z 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

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