Critical authenticated RCE in Google Cloud Application Integration — a widely used managed GCP service; could enable tenant/server compromise and attract broad attention.
CVE-2026-81867
Authenticated RCE via JS Task deserialization in Google Cloud Application Integration (patched).
Is CVE-2026-81867 being exploited?
Not confirmed. CVE-2026-81867 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-2026-81867?
CVE-2026-81867 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-2026-81867?
Yes. A fix has been recorded for CVE-2026-81867. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-81867 affect?
CVE-2026-81867 affects Google Cloud Application Integration (JavaScript Task) versions < 2026-06-28. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-81867?
Confirm Google's patch applied; review audit logs for suspicious activity.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated users can execute arbitrary code on shared production servers via crafted JavaScript Task deserialization, risking RCE, data exposure, and tenant compromise.
Monitor only
- affected< 2026-06-28
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.