CVE-2026-14890
Unauthenticated RCE via exposed ZeroMQ PULL socket in SGLang backup subsystem
Is CVE-2026-14890 being exploited?
Not confirmed. CVE-2026-14890 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 1.00% probability of exploitation in the next 30 days.
How severe is CVE-2026-14890?
CVE-2026-14890 is rated Critical with a CVSS score of 9.1. 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-2026-14890?
Yes. A fix has been recorded for CVE-2026-14890. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-14890 affect?
CVE-2026-14890 affects SGLang expert-parallel backup subsystem, Any deployment exposing a ZeroMQ PULL socket to routable networks. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-14890?
Disable backup feature or firewall/restrict ZeroMQ access; apply vendor patch when released.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated remote code execution by sending a malicious pickle to an exposed ZeroMQ PULL socket; attacker can run arbitrary code and fully compromise host.
Immediate action required
- affected<= 0.5.14
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.