CVE-2021-47748
Remote code execution in Hasura GraphQL 1.3.3 via crafted GraphQL queries using COPY FROM PROGRAM.
Is CVE-2021-47748 being exploited?
Not confirmed. CVE-2021-47748 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 1.1% probability of exploitation in the next 30 days.
How severe is CVE-2021-47748?
CVE-2021-47748 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-2021-47748?
Yes. A fix has been recorded for CVE-2021-47748. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2021-47748 affect?
CVE-2021-47748 affects Hasura GraphQL Engine 1.3.3, PostgreSQL server (COPY FROM PROGRAM). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2021-47748?
Patch to a fixed Hasura release; restrict run_sql exposure.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote code execution on Hasura host via run_sql; attacker can execute arbitrary commands.
Immediate action required
- affected1.3.3
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.