CVE-2026-39946: Github.com/openbao/openbao SQL Injection Vulnerability
MODERATECVE-2026-39946 is a MODERATE (CVSS 4.9) sql injection vulnerability (CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')) affecting Github.com/openbao/openbao libraries in the Go ecosystem. The issue involves openbao's sql injection in postgresql database secrets engine. Remediation is available by upgrading affected packages to version 0.0.0-20260420155735-b596b0882620.
CVE-2026-39946 at a Glance
Security Impact
CVSS: 4.9
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N).
How to Fix CVE-2026-39946
To remediate this vulnerability, upgrade all affected Github.com/openbao/openbao dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
Upgrade github.com/openbao/openbao to 0.0.0-20260420155735-b596b0882620Run the following command in your project directory to verify that all resolved dependencies use the patched release:
inspect dependencies for github.com/openbao/openbaoHow to Check if You Are Affected
To determine whether your application is affected by CVE-2026-39946, inspect your project dependencies for Github.com/openbao/openbao:
inspect dependencies for github.com/openbao/openbaoAnalyze the terminal output to locate any version of Github.com/openbao/openbao in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.0.0-20260420155735-b596b0882620), your application is affected.
Note: Verify declared build manifests and deployed runtime container environments.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection'), where the product constructs all or part of an sql command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended sql command when it is sent to a downstream component. without sufficient removal or quoting of sql syntax in user-controllable inputs, the generated sql query can cause those inputs to be interpreted as sql instead of ordinary user data. In Github.com/openbao/openbao, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
CVE-2026-39946 Affected Github.com/openbao/openbao Versions
1 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
github.com/openbao/openbao
|
Go |
< 0.0.0-20260420155735-b596b0882620
|
0.0.0-20260420155735-b596b0882620
|
References
Frequently Asked Questions
What is CVE-2026-39946?
Which Github.com/openbao/openbao versions are affected?
What version fixes CVE-2026-39946?
Is github.com/openbao/openbao affected?
What is the CVSS score of CVE-2026-39946?
What CWE is associated with CVE-2026-39946?
How can I check Go dependencies for CVE-2026-39946?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-6vgr-cp5c-ffx3",
"modified" : "2026-04-27T16:36:02Z",
"published" : "2026-04-21T18:26:05Z",
"aliases" : [ "CVE-2026-39946" ],
"summary" : "OpenBao's SQL Injection in PostgreSQL database secrets engine",
"details" : "### Impact\n\nWhen OpenBao revoked privileges on a role in the PostgreSQL database secrets engine, OpenBao failed to use proper database quoting on schema names provided by PostgreSQL. This could lead to role revocation failures, or more rarely, SQL injection as the management user.\n\nThis vulnerability was originally from HashiCorp Vault.\n\n### Patches\n\nThis was addressed in v2.5.3.\n\n### Workarounds\n\nAudit table schemas and ensure database users cannot create new schemas and grant privileges on them.",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N"
}, {
"type" : "CVSS_V4",
"score" : "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "Go",
"name" : "github.com/openbao/openbao"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "0.0.0-20260420155735-b596b0882620"
} ]
} ]
} ],
"references" : [ {
"type" : "WEB",
"url" : "https://github.com/openbao/openbao/security/advisories/GHSA-6vgr-cp5c-ffx3"
}, {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-39946"
}, {
"type" : "WEB",
"url" : "https://github.com/openbao/openbao/pull/2931"
}, {
"type" : "WEB",
"url" : "https://github.com/openbao/openbao/commit/80693a46ebb4fc2455f1c51ed1dd853b28c2fd77"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/openbao/openbao"
}, {
"type" : "WEB",
"url" : "https://github.com/openbao/openbao/releases/tag/v2.5.3"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-89" ],
"severity" : "MODERATE",
"github_reviewed" : true,
"github_reviewed_at" : "2026-04-21T18:26:05Z",
"nvd_published_at" : "2026-04-21T01:16:06Z"
}
}