High
Dgraph Vulnerable to DQL Injection via checkUserPassword GraphQL Query
Type: advisorySources: OSV
Dgraph is an open source distributed GraphQL database. Prior to version 25.3.4, the `checkUserPassword` GraphQL query in Dgraph is vulnerable to DQL (Dgraph Query Language) injection. User-supplied password values are interpolated directly into a DQL `checkpwd()` query via `fmt.Sprintf` without any escaping or parameterization. An attacker can inject a password containing a double-quote character to break out of the DQL string literal and append arbitrary DQL query blocks. Version 25.3.4 patches the issue.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-44840
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 3 Nov 2026, 14:13 UTC · Revision 1
Source evidence
Dgraph Vulnerable to DQL Injection via checkUserPassword GraphQL Query
core-osv · Original sourcePublished 8 Jul 2026, 13:27 UTC
Dgraph is an open source distributed GraphQL database. Prior to version 25.3.4, the `checkUserPassword` GraphQL query in Dgraph is vulnerable to DQL (Dgraph Query Language) injection. User-supplied password values are interpolated directly into a DQL `checkpwd()` query via `fmt.Sprintf` without any escaping or parameterization. An attacker can inject a password containing a double-quote character to break out of the DQL string literal and append arbitrary DQL query blocks. Version 25.3.4 patches the issue.
osv:CVE-2026-44840
Complete source record
{
"id": "0b11bea0d0b915cae636feb672c7aaabec0ec12982f45164db7a5539787c5671",
"url": "https://osv.dev/vulnerability/CVE-2026-44840",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Dgraph Vulnerable to DQL Injection via checkUserPassword GraphQL Query",
"summary": "Dgraph is an open source distributed GraphQL database. Prior to version 25.3.4, the `checkUserPassword` GraphQL query in Dgraph is vulnerable to DQL (Dgraph Query Language) injection. User-supplied password values are interpolated directly into a DQL `checkpwd()` query via `fmt.Sprintf` without any escaping or parameterization. An attacker can inject a password containing a double-quote character to break out of the DQL string literal and append arbitrary DQL query blocks. Version 25.3.4 patches the issue.",
"evidence": "osv:CVE-2026-44840",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2026-44840",
"aliases": [
"CVE-2026-44840",
"GHSA-q2m9-6jp9-c6mc",
"GO-2026-5837"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/dgraph-io/dgraph",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "cee702c93f141eeb0c96a81f70830ec9e459efac"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "25.3.4"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"fixed": "cee702c93f141eeb0c96a81f70830ec9e459efac"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "cee702c93f141eeb0c96a81f70830ec9e459efac"
}
],
"source": "REFERENCES_TAG",
"original_tag": "v25.3.4"
},
{
"range": [
{
"introduced": "0"
},
{
"fixed": "25.3.4"
}
],
"source": "DESCRIPTION"
}
]
}
}
],
"versions": [
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"v25.3.2",
"v25.3.1",
"v25.3.0",
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"v25.0.0-preview4",
"v25.0.0-preview3",
"v25.0.0-preview2",
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"v24.0.2",
"v24.0.2-rc1",
"v24.0.1",
"v24.0.0",
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"v23.1.0",
"v24.0.0-alpha3",
"v24.0.0-alpha2",
"v24.0.0-alpha",
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"v22.0.0-RC1-20221003",
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"v20.11.0-rc1",
"release/v20.11-rc1",
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"v1.1.1-rc2",
"v1.1.1-rc1",
"v1.1.0",
"v1.1.0-rc3",
"v1.1.0-rc2",
"v1.0.12-rc3",
"v1.0.12-rc2",
"v1.0.12-rc1",
"v1.0.11",
"v1.0.11-rc4",
"v1.0.11-rc3",
"v1.0.11-rc2",
"v1.0.10",
"v1.0.11-rc1",
"v1.0.10-rc1",
"v1.0.9-rc5",
"v1.0.9-rc4",
"v1.0.9-rc3",
"v1.0.9-rc2",
"v1.0.9-rc1",
"v1.0.8-rc2",
"v1.0.8-rc1",
"v1.0.7a",
"v1.0.7",
"v1.0.7-rc4",
"v1.0.7-rc3",
"v1.0.7-rc2",
"nightly",
"v1.0.5",
"v1.0.4",
"v1.0.3",
"v1.0.2",
"v1.0.1",
"v1.0.0",
"v0.9.4",
"v0.9.0",
"v0.8.3",
"v0.8.1",
"v0.8.0",
"v0.4.2",
"v0.4.1",
"v0.4.0",
"v0.3"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-44840.json"
}
}
],
"modified": "2026-10-28T02:30:29.206796860Z",
"provider": "osv",
"references": [
"https://github.com/dgraph-io/dgraph/releases/tag/v25.3.4",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44840.json",
"https://github.com/dgraph-io/dgraph/security/advisories/GHSA-q2m9-6jp9-c6mc",
"https://nvd.nist.gov/vuln/detail/CVE-2026-44840",
"https://github.com/dgraph-io/dgraph/commit/cee702c93f141eeb0c96a81f70830ec9e459efac"
],
"provider_metadata": {
"cwe_ids": [
"CWE-943"
],
"cna_assigner": "GitHub_M",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44840.json"
}
},
"related_cves": [
{
"value": "CVE-2026-44840",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 496279,
"published_at": "2026-07-08T13:27:44.178+00:00"
}