# CVE-2026-82474: Sudo through 1.9.17p2 Intercept Policy Bypass via execveat

CVE-2026-82474 is fixed in 4 products on 1 platform, first by libnss-sudo 1.9.17p2-1ubuntu3.1, released August 29, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-82474
- Priority: High
- CVSS: 7.8 (Important)
- EPSS: 0.0019
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Aug 29, 2026
- Weakness: Protection Mechanism Failure
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-82474

## Description

The sudo packages contain the sudo utility which allows system administrators to provide certain users with the permission to execute privileged commands, which are used for system management purposes, without having to log in as root.  Security Fix(es):  * sudo: Sudo: Policy bypass allows unauthorized program execution via execveat (CVE-2026-82474)  For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libnss-sudo Ubuntu 24.04.5 LTS (noble) | 1.9.15p5-3ubuntu5.24.04.3 | [libnss-sudo 1.9.15p5-3ubuntu5.24.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libnss-sudo-1.9.15p5-3ubuntu5.24.04.3.md) | Sep 23, 2026 |
| Linux | libnss-sudo Ubuntu 26.04.1 LTS (resolute) | 1.9.17p2-1ubuntu3.1 | [libnss-sudo 1.9.17p2-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libnss-sudo-1.9.17p2-1ubuntu3.1.md) | Aug 29, 2026 |
| Linux | sudo RHEL 10 | 1.9.15-8.p5.el10_0.4 | [RHSA-2026:71354](https://patchblox.com/security/data/fix/linux/rhsa-2026-71354.md) | Sep 18, 2026 |
| Linux | sudo RHEL 9 | 0:1.9.17p2-3.el9_8.1 | [RHSA-2026:69123](https://patchblox.com/security/data/fix/linux/rhsa-2026-69123.md) | Sep 22, 2026 |
| Linux | sudo Ubuntu 24.04.5 LTS (noble) | 1.9.15p5-3ubuntu5.24.04.3 | [sudo 1.9.15p5-3ubuntu5.24.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-noble-sudo-1.9.15p5-3ubuntu5.24.04.3.md) | Sep 23, 2026 |
| Linux | sudo Ubuntu 26.04.1 LTS (resolute) | 1.9.17p2-1ubuntu3.1 | [sudo 1.9.17p2-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-sudo-1.9.17p2-1ubuntu3.1.md) | Aug 29, 2026 |
| Linux | sudo almalinux 10 | 1.9.17-10.p2.el10_2.6 | [ALSA-2026:68692](https://patchblox.com/security/data/fix/linux/alsa-2026-68692.md) | Sep 17, 2026 |
| Linux | sudo almalinux 9 | 1.9.17p2-3.el9_8.1 | [ALSA-2026:69123](https://patchblox.com/security/data/fix/linux/alsa-2026-69123.md) | Sep 21, 2026 |
| Linux | sudo ol 10 | 0:1.9.17-10.p2.el10_2.6 | [ELSA-2026-68692](https://patchblox.com/security/data/fix/linux/elsa-2026-68692.md) | Sep 17, 2026 |
| Linux | sudo ol 9 | 0:1.9.17p2-3.el9_8.1 | [ELSA-2026-69123](https://patchblox.com/security/data/fix/linux/elsa-2026-69123.md) | Sep 21, 2026 |
| Linux | sudo rocky 10 | 0:1.9.17-10.p2.el10_2.6 | [RLSA-2026:68692](https://patchblox.com/security/data/fix/linux/rlsa-2026-68692.md) | Sep 19, 2026 |
| Linux | sudo rocky 9 | 0:1.9.17p2-3.el9_8.1 | [RLSA-2026:69123](https://patchblox.com/security/data/fix/linux/rlsa-2026-69123.md) | Sep 22, 2026 |
| Linux | sudo-ldap Ubuntu 24.04.5 LTS (noble) | 1.9.15p5-3ubuntu5.24.04.3 | [sudo-ldap 1.9.15p5-3ubuntu5.24.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-noble-sudo-ldap-1.9.15p5-3ubuntu5.24.04.3.md) | Sep 23, 2026 |
| Linux | sudo-python-plugin RHEL 9 | 0:1.9.17p2-3.el9_8.1 | [RHSA-2026:69123](https://patchblox.com/security/data/fix/linux/rhsa-2026-69123.md) | Sep 22, 2026 |
| Linux | sudo-python-plugin almalinux 10 | 1.9.17-10.p2.el10_2.6 | [ALSA-2026:68692](https://patchblox.com/security/data/fix/linux/alsa-2026-68692.md) | Sep 17, 2026 |
| Linux | sudo-python-plugin almalinux 9 | 1.9.17p2-3.el9_8.1 | [ALSA-2026:69123](https://patchblox.com/security/data/fix/linux/alsa-2026-69123.md) | Sep 21, 2026 |
| Linux | sudo-python-plugin ol 10 | 0:1.9.17-10.p2.el10_2.6 | [ELSA-2026-68692](https://patchblox.com/security/data/fix/linux/elsa-2026-68692.md) | Sep 17, 2026 |
| Linux | sudo-python-plugin ol 9 | 0:1.9.17p2-3.el9_8.1 | [ELSA-2026-69123](https://patchblox.com/security/data/fix/linux/elsa-2026-69123.md) | Sep 21, 2026 |

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Data as of 2026-11-09T13:31:49Z 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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