CVE-2026-42278
Policy check bypass in UltraDAG allows draining pockets.
Is CVE-2026-42278 being exploited?
Not confirmed. CVE-2026-42278 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 0.38% probability of exploitation in the next 30 days.
How severe is CVE-2026-42278?
CVE-2026-42278 is rated High with a CVSS score of 8.8. 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-2026-42278?
Yes. A fix has been recorded for CVE-2026-42278. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-42278 affect?
CVE-2026-42278 affects UltraDAG StateEngine / SmartTransferTx (Pocket sub-addresses). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-42278?
Apply patch fb6ef59 to fix policy check.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Attacker with parent key can drain all pockets instantly, bypassing vault/daily limits.
Patch when possible