CVSS 3.1
8.5 highCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:HCVE-2021-30465
High (8.5). EPSS 10% chance of exploitation in the next 30 days. Fixed in github.com/opencontainers/runc 1.0.0-rc95.
runc before 1.0.0-rc95 allows a Container Filesystem Breakout via Directory Traversal. To exploit the vulnerability, an attacker must be able to create multiple containers with a fairly specific mount configuration. The problem occurs via a symlink-exchange attack that relies on a race condition.
Severity
- EPSS
- 10% chance of exploitation in the next 30 days; higher than 95% of CVEs (scores of 2026-10-31)
- CWE
- CWE-362
- Published
- Modified
- Record from
- the NVD, synced
Affected
- fedoraproject:fedora
- linuxfoundation:runc
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-c3xm-pvg7-gh7r | Go | github.com/opencontainers/runc | <1.0.0-rc95 | 1.0.0-rc95 |
| GO-2022-0914 | Go | github.com/opencontainers/runc | <1.0.0-rc95 | 1.0.0-rc95 |