CVE-2021-47714: Hasura GraphQL 1.3.3 contains a local file read vulnerability that allows attackers to access system files thr

Routine

MEDIUM 5.5DOWNGRADE

CVE-2021-47714 is a medium-severity flaw (CVSS 5.5) affecting graphql engine. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Hasura GraphQL 1.3.3 contains a local file read vulnerability that allows attackers to access system files through SQL injection in the query endpoint. Attackers can exploit the pg_read_file() PostgreSQL function by crafting malicious SQL queries to read arbitrary files on the server.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 88%)
CISA exploited list	No
Weakness	CWE-89
Published	2025-12-22
Last modified	2026-06-17

Publisher (CNA): VulnCheck · Vendor: hasura

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-12-22 22:15 UTCPublished CVE record published
2026-06-17 04:18 UTCUpdated Record last modified

hasura graphql engine DOWNGRADE

Affected: 1.3.3

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.3.3

1. Check installed version

apt-cache policy graphql-engine || rpm -q graphql-engine || graphql-engine --version

2. No fixed release: DOWNGRADE to a release before 1.3.3 (Debian / Ubuntu)

apt-cache madison graphql-engine sudo apt install graphql-engine=<VERSION_BEFORE_1.3.3> sudo apt-mark hold graphql-engine

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list graphql-engine sudo dnf downgrade graphql-engine-<VERSION_BEFORE_1.3.3> sudo dnf versionlock add graphql-engine

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-47714?

graphql engine: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2021-47714 being exploited?

CVE-2021-47714 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-47714 affect?

CVE-2021-47714 affects graphql engine. Severity is medium (CVSS 5.5). Hasura GraphQL 1.3.3 contains a local file read vulnerability that allows attackers to access system files through SQL injection in the query endpoint. Attackers can exploit the pg_read_file() PostgreSQL function by crafting malicious SQL q

How urgent is CVE-2021-47714?

Priority 27/100. Public exploit reference

Software pages

PostgreSQL vulnerabilities

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References

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