Back
CVE-2026-30892
Crun incorrectly parses `crun exec` option `-u`, leading to privilege escalation
None0.0EPSS 0.17%
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
Description
crun is an open source OCI Container Runtime fully written in C. In versions 1.19 through 1.26, the `crun exec` option `-u` (`--user`) is incorrectly parsed. The value `1` is interpreted as UID 0 and GID 0 when it should have been UID 1 and GID 0. The process thus runs with higher privileges than expected. Version 1.27 patches the issue.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | None0.0 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N |
| NVDNVD · Analyzed | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.17% · top 94% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: poc · Automatable: no · Technical impact: partial
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: None 0.0.
Weakness
Affected products
- affected >= 1.19, < 1.27
References (3)
- https://github.com/containers/crun/security/advisories/GHSA-4vg2-xjqj-7chj (opens in a new tab)x_refsource_CONFIRM
- https://github.com/containers/crun/commit/1bd7f42446999b0e76bc3d575392e05c943b0b01 (opens in a new tab)x_refsource_MISC
- https://github.com/containers/crun/releases/tag/1.27 (opens in a new tab)x_refsource_MISC
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-30892)Record last updated .