CVE-2026-12382
Envoy proxy config permits Subject header spoofing to bypass mTLS and inject EDA events
Is CVE-2026-12382 being exploited?
Not confirmed. CVE-2026-12382 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 0.46% probability of exploitation in the next 30 days.
How severe is CVE-2026-12382?
CVE-2026-12382 is rated High with a CVSS score of 8.2. 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-2026-12382?
Yes. A fix has been recorded for CVE-2026-12382. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-12382 affect?
CVE-2026-12382 affects AAP Gateway Envoy proxy, EDA event stream endpoints, Envoy-based gateway deployments. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-12382?
Apply vendor fix or block non-mTLS routes; strip/ignore Subject header and add header validation.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated remote attacker can spoof Subject header to bypass mTLS and inject arbitrary events into protected EDA event streams.
Immediate action required