Incus: Nil-Pointer Dereference via S3 Bucket Import
Priority LOW 29CWE-476Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-476.
Summary
Incus is a system container and virtual machine manager. Prior to version 7.0.0, a missing error handling could lead an authenticated Incus user to cause a daemon crash through the import of a truncated storage bucket backup file. This issue has been patched in version 7.0.0.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00394 33rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed incus (lxc): 7.0.0
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| lxc | incus | before 7.0.0 | 7.0.0 | Patch available | CNA |
| — | github.com/lxc/incus/v6/cmd/incusd (Go) | up to 6.23.0 | — | No fix listed | GHSA-fwj8-62r8-8p8m |
- incus Vendorlxc Affected before 7.0.0 Fixed in 7.0.0 Patch available CNA
- github.com/lxc/incus/v6/cmd/incusd (Go) Vendor— Affected up to 6.23.0 Fixed in — No fix listed GHSA-fwj8-62r8-8p8m
Remediation
- Fix · CNA incus (lxc) Fixed in 7.0.0
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2026-41647
- 2026-10-03 Alias added: GHSA-fwj8-62r8-8p8m
References
More lxc Incus vulnerabilities
- TI-2026-19296 Incus container image templating arbitrary host file read and write CVSS 3.1HIGH 8.7
- TI-2026-19295 Incus container environment configuration newline injection CVSS 3.1HIGH 8.7
- TI-2025-39899 Incus vulnerable to local privilege escalation through custom storage volumes CVSS 4.0HIGH 8.6
- TI-2026-29045 Incus out-of-bounds panic in snapshot metadata handling allows denial of service CVSS 4.0HIGH 7.1
- TI-2026-29009 Incus nil-pointer dereference in storage bucket import allows denial of service CVSS 4.0HIGH 7.1
- TI-2026-26122 Incus vulnerable to denial of source through crafted bucket backup file CVSS 3.1MEDIUM 6.5
Sources
- CVE-2026-41647 · CVE Program
- CVE-2026-41647 · NVD
- FIRST EPSS
- GHSA-fwj8-62r8-8p8m · GitHub Advisory Database · CC BY 4.0
- CVE-2026-41647 · 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