GHSA-7ccv-rp6m-rffr

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Source
https://github.com/advisories/GHSA-7ccv-rp6m-rffr
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-7ccv-rp6m-rffr/GHSA-7ccv-rp6m-rffr.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-7ccv-rp6m-rffr
Aliases
  • CVE-2026-39388
Related
Published
2026-04-21T17:26:42Z
Modified
2026-05-05T16:03:30.374566Z
Severity
  • 3.1 (Low) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:N CVSS Calculator
  • 2.0 (Low) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
OpenBao's Certificate Authentication Allows Token Renewal With Different Certificate
Details

Background

OpenBao's Certificate authentication method, when a token renewal is requested and disable_binding=true is set, attempts to verify the current request's presented mTLS certificate matches the original. Token renewals for other authentication methods do not require any supplied login information.

Impact

Due to incorrect matching, the certificate authentication method would allow renewal of tokens for which the attacker had a sibling certificate+key signed by the same CA, but which did not necessarily match the original role or the originally supplied certificate. This implies an attacker could still authenticate to OpenBao in a similar scope, however, token renewal implies that an attacker may be able to extend the lifetime of dynamic leases held by the original token. This attack requires knowledge of either the original token or its accessor.

This vulnerability is originally from HashiCorp Vault.

Patches

This has been addressed in v2.5.3.

Workarounds

Ensure privileged roles are tightly scoped to single certificates.

Database specific 
{
    "cwe_ids": [
        "CWE-295",
        "CWE-863"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-04-21T17:26:42Z",
    "nvd_published_at": "2026-04-21T01:16:06Z",
    "severity": "LOW"
}
References

Affected packages

Go / github.com/openbao/openbao

Package

Name
github.com/openbao/openbao
View open source insights on deps.dev
Purl
pkg:golang/github.com/openbao/openbao

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.0.0-20260420160924-abe84e1af4c3

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-7ccv-rp6m-rffr/GHSA-7ccv-rp6m-rffr.json"