CVE-2026-47067
URL parser exhaustion via unrecognized schemes can crash BEAM VM.
Is CVE-2026-47067 being exploited?
Not confirmed. CVE-2026-47067 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 0.75% probability of exploitation in the next 30 days.
How severe is CVE-2026-47067?
CVE-2026-47067 is rated High with a CVSS score of 8.7. 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-2026-47067?
Yes. A fix has been recorded for CVE-2026-47067. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-47067 affect?
CVE-2026-47067 affects hackney (Erlang) <= 4.0.0. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-47067?
Upgrade to hackney 4.0.1+
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote DoS: attacker-supplied URLs exhaust BEAM atom table, crashing the VM.
Patch when possible
- affected>= 2.0.0 and < 4.0.1
- affected>= d9713695c0d99855d12c73fd8a0b4be0543950c4 and < 31f6f0e27e096ad88743dfded4f030a3ee74972e
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.