Description
Sudo through 1.9.17p2 fails to apply intercept policy checks to the execveat system call in ptrace-based intercept mode. Users permitted to run specific commands can execute denied programs by calling execveat directly or through fexecve, bypassing policy enforcement and logging.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| sudo-project | sudo | ≤ 1.9.17p2 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | sudo | No fix yet | — |
| Debian 13 | sudo | No fix yet | — |
| Debian 12 | sudo | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.04 LTS | sudo | 1.9.17p2-1ubuntu3.1 | USN-8803-1 |
| Ubuntu 24.04 LTS | sudo | 1.9.15p5-3ubuntu5.24.04.3 | USN-8803-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | sudo +1 | 1.9.17-10.p2.el10_2.6 | RHSA-2026:68692 |
| RHEL 9 | sudo +1 | 1.9.17p2-3.el9_8.1 | RHSA-2026:69123 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10.0 EUS | sudo +1 | 1.9.15-8.p5.el10_0.4 | RHSA-2026:71354 |
| Red Hat Hardened Images 1 | sudo +3 | 1.9.17-16.p2.1.hum1 | RHSA-2026:65569 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | sudo +1 | 1.9.17-10.p2.el10_2.6 | ALSA-2026:68692 |
| AlmaLinux 9 | sudo +1 | 1.9.17p2-3.el9_8.1 | ALSA-2026:69123 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | sudo | 1.9.17-10.p2.el10_2.6 | RLSA-2026:68692 |
| Rocky Linux 9 | sudo | 1.9.17p2-3.el9_8.1 | RLSA-2026:69123 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | sudo | 1.9.17-3 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 10 | sudo +1 | 1.9.17-10.p2.el10_2.6 | ELSA-2026-68692 |
| Oracle Linux 9 | sudo +1 | 1.9.17p2-3.el9_8.1 | ELSA-2026-69123 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 1 repository
-
paktiko1986/CVE-2026-82474 ★ 0 · Nov 2, 2026
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 12
- ALSA-2026:69123 Important: sudo security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:68692 Important: sudo security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2026:65569 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2026:71354 Red Hat Security Advisory: sudo security update Red Hat Security Advisories (RHSA) · Sep 25, 2026
- RHSA-2026:69123 Red Hat Security Advisory: sudo security update Red Hat Security Advisories (RHSA) · Sep 25, 2026
- RHSA-2026:68692 Red Hat Security Advisory: sudo security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Sep 25, 2026
- USN-8803-1 sudo vulnerability Ubuntu Security Notices (USN) · Sep 23, 2026
- WID-SEC-2026-3092 sudo: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen BSI CERT-Bund (WID) · Sep 22, 2026
- RLSA-2026:69123 Important: sudo security update Rocky Linux Security Advisories · Sep 22, 2026
- ELSA-2026-69123 Important: sudo security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Sep 21, 2026
- RLSA-2026:68692 Important: sudo security, bug fix, and enhancement update Rocky Linux Security Advisories · Sep 19, 2026
- ELSA-2026-68692 Important: sudo security, bug fix, and enhancement update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · Sep 17, 2026
References
- Patch Commit patch
- https://github.com/sudo-project/sudo/blob/v1.9.17p2/src/exec_ptrace.c technical-description
- https://github.com/sudo-project/sudo product
- VulnCheck Advisory: Sudo through 1.9.17p2 Intercept Policy Bypass via execveat third-party-advisory