Incus is a system container and virtual machine manager. Prior to version 7.1.0, (*backend).CreateInstanceFromBackup in internal/server/storage/backend.go contains a nil-pointer dereference that an authenticated user with permission to create instances in any project can trigger remotely by uploading a crafted backup tarball. The Incus daemon panics and the process crashes, causing denial of service to every project on that cluster member. This is a sibling of GHSA-fwj8-62r8-8p8m, GHSA-r7w7-mmxr-47r9, and GHSA-x5r6-jr56-89pv (all assigned 2026-05-04). Those patches added guards on adjacent fields of the same backup/config.Config struct; the Volume field on the instance-import path was missed. Version 7.1.0 contains an updated patch.
CVE-2026-47753
MEDIUMPre-NVD 4.44.4—Trending — 3 sources updated this weekElevated
EchelonGraph scoreMEDIUM confidence
This medium-severity CVE scores 4.4 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.1%, top 96% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: epss, secondary
4.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.4Exploit: Elevated riskExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 4.4
- EG Score
- 4.4(medium)
- EG Risk
- 36(Track*)EG Risk 36/100SSVC: Track*
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity44% × 45%Exploitation40% × 40%Automatability0% × 15%Action: Watch closely — could escalate to Attend. - EPSS PROB
- 0%
- EPSS %ILE
- 4%
- KEV
- Not listed
Published
June 10, 2026
Last Modified
August 21, 2026
Advisory Details (2)
Auto-updated Aug 21, 2026🔬 Proof of concept available. Patch available. Sources: github, github_commit.
github_commit
commit 98e64f0a6fcf (lxc/incus)
Fix landed in lxc/incus commit 98e64f0a6fcf — awaiting tagged release
https://github.com/lxc/incus/commit/98e64f0a6fcfdc9676eea0246418d490c53297bfgithub Patch Available🟡 PoC Available
Nil-Pointer Dereference Panic via Instance Backup Import (volume omitted) · Advisory · lxc/incus · GitHub
https://github.com/lxc/incus/security/advisories/GHSA-8g7m-96c8-8wwcVendor Advisories for CVE-2026-47753(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Affected Packages
(4 across 2 ecosystems)
Go(3)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| github.com/lxc/incus | — | — | — |
| github.com/lxc/incus/v6 | — | — | — |
| github.com/lxc/incus/v7 | — | 7.1.0 | — |
Debian:14(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| incus | 6.0.4-2 ... 7.0.0-1~bpo13+1 (23 versions) | 7.0.0-2 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 6× in last 7d / 8× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-08-23 10:46 UTCEG score recompute
- 2026-08-23 00:19 UTCEPSS rescore
- 2026-08-21 15:21 UTCEG score recompute
- 2026-08-21 14:54 UTCEG score recompute
- 2026-08-21 14:24 UTCEG score recompute▲ 4.40
- 2026-08-21 14:24 UTCMITRE cvelistV5CVSS v3 → 4.4 · CVSS v4 → 4.4
- 2026-07-30 09:45 UTCEG score recompute
- 2026-07-26 20:56 UTCEG score recompute
- 2026-07-23 03:17 UTCEG score recompute
- 2026-06-14 23:18 UTCEPSS rescore
- 2026-06-13 23:00 UTCEPSS rescore
- 2026-06-12 23:12 UTCEPSS rescore
- 2026-06-10 20:17 UTCEG score recompute
Related CVEs(same CWE)
Frequently asked(5)
What is CVE-2026-47753?
CVE-2026-47753 is a medium vulnerability published on June 10, 2026. Incus is a system container and virtual machine manager. Prior to version 7.1.0, (*backend).CreateInstanceFromBackup in internal/server/storage/backend.go contains a nil-pointer dereference that an authenticated user with permission to create instances in any project can trigger remotely by…
When was CVE-2026-47753 disclosed?
CVE-2026-47753 was first published in the National Vulnerability Database on June 10, 2026, with the most recent update on August 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-47753 actively exploited?
CVE-2026-47753 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 96.0% of all scored CVEs.
What is the CVSS score of CVE-2026-47753?
CVE-2026-47753 has a CVSS v3 base score of 4.4 (NVD).
How do I remediate CVE-2026-47753?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-47753, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-47753
Is Your Infrastructure Affected by CVE-2026-47753?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.