CVE-2026-63293
LXD image import symlink flaw allows arbitrary host file read/write via crafted archive
Is CVE-2026-63293 being exploited?
Not confirmed. CVE-2026-63293 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.48% probability of exploitation in the next 30 days.
How severe is CVE-2026-63293?
CVE-2026-63293 is rated Critical with a CVSS score of 9.9. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-63293?
Yes. A fix has been recorded for CVE-2026-63293. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-63293 affect?
CVE-2026-63293 affects LXD (image import/unpack functionality), Linux hosts running LXD. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-63293?
Block untrusted image imports, restrict import privileges, and apply vendor patch when available
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Crafted image archives can cause LXD to read or overwrite arbitrary host files during import, enabling host compromise and potential persistent code execution.
Patch when possible
- affected>= 4.0.0 and < 4.0.12
- affected>= 5.0.0 and < 5.0.8
- affected>= 5.21.0 and < 5.21.6
- affected>= 6.0 and < 6.10
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.