CVE-2026-76850
Unauthenticated pickle deserialization in LMDeploy allows remote code execution.
Is CVE-2026-76850 being exploited?
Not confirmed. CVE-2026-76850 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 0.98% probability of exploitation in the next 30 days.
How severe is CVE-2026-76850?
CVE-2026-76850 is rated Critical with a CVSS score of 9.3. 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-2026-76850?
Not known from our data. No patch reference has been recorded for CVE-2026-76850, 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-2026-76850 affect?
CVE-2026-76850 affects LMDeploy (disaggregated serving), lmdeploy/pytorch/disagg/conn/engine_conn.py, Deployments using p2p_connect or p2p_initialize endpoints. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-76850?
Disable disaggregated serving or enable API keys; block untrusted ZMQ endpoints; 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: attacker can force engine to pull malicious ZMQ data which is unpickled, executing arbitrary code in the engine process.
Immediate action required
- affected>= 0.9.2 and < 0.16.0
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.