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Vulnerability record · CVE-2023-31135 · published 17 May 2023

CVE-2023-31135: Dgraph inadequate encryption strength vulnerability

Dgraph · Dgraph

Dgraph is an open source distributed GraphQL database. Existing Dgraph audit logs are vulnerable to brute force attacks due to nonce collisions. The first 12 bytes come from a baseIv which is initialized when an audit log is created. The last 4 bytes come from the length of the log line being encrypted. This is problematic because two log lines will often have the same length, so due to these collisions we are reusing the same nonce many times. All audit logs generated by versions of Dgraph <v23.0.0 are affected. Attackers must have access to the system the logs are stored on. Dgraph users should upgrade to v23.0.0. Users unable to upgrade should store existing audit logs in a secure location and for extra security, encrypt using an external tool like `gpg`.

5.5 CVSS 3.1 Medium EPSS 0.15% · top 96.2% CWE-326 · Inadequate encryption strength
5.5CVSS 3.1 base score
0.15%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

Dgraph is an open source distributed GraphQL database. Existing Dgraph audit logs are vulnerable to brute force attacks due to nonce collisions. The first 12 bytes come from a baseIv which is initialized when an audit log is created. The last 4 bytes come from the length of the log line being encrypted. This is problematic because two log lines will often have the same length, so due to these collisions we are reusing the same nonce many times. All audit logs generated by versions of Dgraph <v23.0.0 are affected. Attackers must have access to the system the logs are stored on. Dgraph users should upgrade to v23.0.0. Users unable to upgrade should store existing audit logs in a secure location and for extra security, encrypt using an external tool like `gpg`.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://en.wikipedia.org/wiki/Cryptographic_nonce Technical Description
https://github.com/dgraph-io/dgraph/pull/8323 Issue TrackingPatch
https://github.com/dgraph-io/dgraph/security/advisories/GHSA-92wq-q9pq-gw47 Vendor Advisory
https://en.wikipedia.org/wiki/Cryptographic_nonce Technical Description
https://github.com/dgraph-io/dgraph/pull/8323 Issue TrackingPatch
https://github.com/dgraph-io/dgraph/security/advisories/GHSA-92wq-q9pq-gw47 Vendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2023-31135), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.