Affects Google Cloud service; allows authenticated users to execute privileged internal RPCs — high-impact cloud privilege escalation likely to be widely reported.
CVE-2026-19759
Authz flaw in Google Cloud Application Integration allows privileged internal RPC execution
Is CVE-2026-19759 being exploited?
Not confirmed. CVE-2026-19759 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.
How severe is CVE-2026-19759?
CVE-2026-19759 is rated Critical with a CVSS score of 9.4. 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-2026-19759?
Yes. A fix has been recorded for CVE-2026-19759. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-19759 affect?
CVE-2026-19759 affects Google Cloud Application Integration (< 2026-06-17), Google Cloud Platform (GCP). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-19759?
Confirm services are updated to 2026-06-17 patch and audit authenticated activity.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated GCP user can invoke internal RPCs as a privileged identity, enabling privilege escalation and lateral access inside Google's production network.
Monitor only
- affected< 2026-06-17
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.