Access control flaw in LXC before 1.0.9 and 2.x before 2.0.6
Priority MEDIUM 44CWE-264Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-264.
Summary
lxc-attach in LXC before 1.0.9 and 2.x before 2.0.6 allows an attacker inside of an unprivileged container to use an inherited file descriptor, of the host's /proc, to access the rest of the host's filesystem via the openat() family of syscalls.
Why it matters now
EPSS 0.02813 86th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | LXC before 1.0.9 and 2.x before 2.0.6 | LXC before 1.0.9 and 2.x before 2.0.6 | — | No fix listed | CNA |
- LXC before 1.0.9 and 2.x before 2.0.6 Vendor— Affected LXC before 1.0.9 and 2.x before 2.0.6 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2016-8649
- 2026-10-03 Alias added: GHSA-vp8j-2cg9-6pvv
References
Patch 2
More Lxc vulnerabilities
- TI-2019-04061 runc through 1.0-rc6, as used in Docker before 18.09.2 and other products, allows… CVSS 3.1HIGH 8.6
- TI-2026-28386 lxc lxc-user-nic insufficient ownership validation allows cross-tenant OVS port deletion CVSS 4.0MEDIUM 4.3
- TI-2016-08200 An issue was discovered in Linux Containers (LXC) before 2016-02-22. CVSS 3.0HIGH 8.6
- TI-2017-13795 In LXC 2.0, many template scripts download code over cleartext HTTP, and omit a… CVSS 3.1HIGH 8.1
- TI-2015-01214 lxc-start in lxc before 1.0.8 and 1.1.x before 1.1.4 allows local container… CVSS 2.0HIGH 7.2
- TI-2013-05394 The lxc-sshd template (templates/lxc-sshd.in) in LXC before 1.0.0.beta2 uses read-write… CVSS 2.0HIGH 7.2
Sources
- CVE-2016-8649 · CVE Program
- CVE-2016-8649 · NVD
- FIRST EPSS
- GHSA-vp8j-2cg9-6pvv · GitHub Advisory Database · CC BY 4.0
- CVE-2016-8649 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences