golang-github-snapcore-snapd-dev: A local privilege escalation vulnerability exists in snap-confine, a set-capabilities core component used internally...
CVE-2026-8933 is fixed in 9 products on 1 platform, first by golang-github-snapcore-snapd-dev 2.76+ubuntu26.04.3, released July 21, 2026. It is not reported as exploited. Patch Radar priority: High.
A local privilege escalation vulnerability exists in snap-confine, a set-capabilities core component used internally by Canonical snapd to construct the secure execution environment for snap applications. This vulnerability uniquely affects versions of snap-confine configured with set-capabilities (rather than standard set-uid-root installations). Due to a flaw in how privilege boundaries or security sandboxes are initialized when the binary runs under limited ambient capabilities, a local, unprivileged attacker can exploit this behavior to bypass intended restrictions and execute arbitrary code. Successful exploitation allows the local user to elevate their privileges to full root authority.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| golang-github-snapcore-snapd-dev · Ubuntu 22.04.1 LTS (jammy) | 2.76+ubuntu22.04.1 | golang-github-snapcore-snapd-dev 2.76+ubuntu22.04.1 | Jul 23, 2026 |
| golang-github-snapcore-snapd-dev · Ubuntu 24.04.5 LTS (noble) | 2.76+ubuntu24.04.1 | golang-github-snapcore-snapd-dev 2.76+ubuntu24.04.1 | Jul 23, 2026 |
| golang-github-snapcore-snapd-dev · Ubuntu 26.04.1 LTS (resolute) | 2.76+ubuntu26.04.3 | golang-github-snapcore-snapd-dev 2.76+ubuntu26.04.3 | Jul 21, 2026 |
| golang-github-ubuntu-core-snappy-dev · Ubuntu 22.04.1 LTS (jammy) | 2.76+ubuntu22.04.1 | golang-github-ubuntu-core-snappy-dev 2.76+ubuntu22.04.1 | Jul 23, 2026 |
| golang-github-ubuntu-core-snappy-dev · Ubuntu 24.04.5 LTS (noble) | 2.76+ubuntu24.04.1 | golang-github-ubuntu-core-snappy-dev 2.76+ubuntu24.04.1 | Jul 23, 2026 |
| snap-confine · Ubuntu 22.04.1 LTS (jammy) | 2.76+ubuntu22.04.1 | snap-confine 2.76+ubuntu22.04.1 | Jul 23, 2026 |
| snap-confine · Ubuntu 24.04.5 LTS (noble) | 2.76+ubuntu24.04.1 | snap-confine 2.76+ubuntu24.04.1 | Jul 23, 2026 |
| snapd · Debian 14 | 2.76.3-1 | DEBIAN-CVE-2026-8933 | Jul 21, 2026 |
| snapd · Ubuntu 22.04.1 LTS (jammy) | 2.76+ubuntu22.04.1 | snapd 2.76+ubuntu22.04.1 | Jul 23, 2026 |
| snapd · Ubuntu 24.04.5 LTS (noble) | 2.76+ubuntu24.04.1 | snapd 2.76+ubuntu24.04.1 | Jul 23, 2026 |
| snapd · Ubuntu 26.04.1 LTS (resolute) | 2.76+ubuntu26.04.3 | snapd 2.76+ubuntu26.04.3 | Jul 21, 2026 |
| snapd-xdg-open · Ubuntu 22.04.1 LTS (jammy) | 2.76+ubuntu22.04.1 | snapd-xdg-open 2.76+ubuntu22.04.1 | Jul 23, 2026 |
| snapd-xdg-open · Ubuntu 24.04.5 LTS (noble) | 2.76+ubuntu24.04.1 | snapd-xdg-open 2.76+ubuntu24.04.1 | Jul 23, 2026 |
| ubuntu-core-launcher · Ubuntu 22.04.1 LTS (jammy) | 2.76+ubuntu22.04.1 | ubuntu-core-launcher 2.76+ubuntu22.04.1 | Jul 23, 2026 |
| ubuntu-core-launcher · Ubuntu 24.04.5 LTS (noble) | 2.76+ubuntu24.04.1 | ubuntu-core-launcher 2.76+ubuntu24.04.1 | Jul 23, 2026 |
| ubuntu-core-snapd-units · Ubuntu 22.04.1 LTS (jammy) | 2.76+ubuntu22.04.1 | ubuntu-core-snapd-units 2.76+ubuntu22.04.1 | Jul 23, 2026 |
| ubuntu-core-snapd-units · Ubuntu 24.04.5 LTS (noble) | 2.76+ubuntu24.04.1 | ubuntu-core-snapd-units 2.76+ubuntu24.04.1 | Jul 23, 2026 |
| ubuntu-snappy · Ubuntu 22.04.1 LTS (jammy) | 2.76+ubuntu22.04.1 | ubuntu-snappy 2.76+ubuntu22.04.1 | Jul 23, 2026 |
| ubuntu-snappy · Ubuntu 24.04.5 LTS (noble) | 2.76+ubuntu24.04.1 | ubuntu-snappy 2.76+ubuntu24.04.1 | Jul 23, 2026 |
| ubuntu-snappy-cli · Ubuntu 22.04.1 LTS (jammy) | 2.76+ubuntu22.04.1 | ubuntu-snappy-cli 2.76+ubuntu22.04.1 | Jul 23, 2026 |
| ubuntu-snappy-cli · Ubuntu 24.04.5 LTS (noble) | 2.76+ubuntu24.04.1 | ubuntu-snappy-cli 2.76+ubuntu24.04.1 | Jul 23, 2026 |
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