CVE-2026-31238
Deserialization flaw enables code execution in Ludwig model server.
Is CVE-2026-31238 being exploited?
Not confirmed. CVE-2026-31238 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 0.50% probability of exploitation in the next 30 days.
How severe is CVE-2026-31238?
CVE-2026-31238 is rated Critical with a CVSS score of 9.8. 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-2026-31238?
Not known from our data. No patch reference has been recorded for CVE-2026-31238, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2026-31238 affect?
CVE-2026-31238 affects Ludwig framework (<=0.10.4) model server. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-31238?
Upgrade to fixed Ludwig version or apply official mitigation when released.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote code execution via pickle deserialization when loading model weights with torch.load() during ludwig serve.
Patch when possible