What is CVE-2026-63637?

CVE-2026-63637 is a high-severity vulnerability in Dgraph-Io Dgraph, classified under Improper Neutralization of Special Elements in Data Query Logic. CVSS score: 8.6/10. Published 2026-08-06.

How severe is CVE-2026-63637?

High severity. CVSS v3 base score is 8.6 out of 10.

Vulnerability in Dgraph-Io Dgraph

CVE-2026-63637

Dgraph is an open source distributed GraphQL database. Prior to 25.3.8, maybeQuoteArg in graphql/resolve/query_rewriter.go passes regexp filter strings into generated DQL without quoting or validating the /pattern/flags form, allowing crafted GraphQL query or mutation filters to inject DQL operators, disclose unintended nodes, or expand modification and deletion targets. This issue is fixed in version 25.3.8.

EPSS: 0.003 (17.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L.

Affected products

Dgraph-io Dgraph — versions < 25.3.8

Weakness classification (CWE)

CWE-943 — Improper Neutralization of Special Elements in Data Query Logic

References

security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-63637?: CVE-2026-63637 is a high-severity vulnerability in Dgraph-Io Dgraph, classified under Improper Neutralization of Special Elements in Data Query Logic. CVSS score: 8.6/10. Published 2026-08-06.
How severe is CVE-2026-63637?: High severity. CVSS v3 base score is 8.6 out of 10.