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OpenBao's Recovery Mode Vulnerable To Token Leakage via Timing Attack

Type: advisorySource: OSV1 source record

### Impact When running in the highly privileged recovery mode, OpenBao was vulnerable to a timing attack against the single recovery token. This allowed an attacker to extract the recovery token and use it to perform operations against the OpenBao instance, including reading or modification of data. ### Patches This has been patched in OpenBao v2.6.0.

Announced Group revision 1
Original source ↗

GHSA-34fc-gh42-pj53

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:GHSA-34fc-gh42-pj53

github.com/openbao/openbao

Source reference: /affected/0/package/name

Affected versions
Not stated in this record
Fixed versions
0.0.0-20260713141742-763625a20721

Source reference: /affected/0/ranges

Prerequisites
Not stated in this record

github.com/openbao/openbao

Source reference: /affected/1/package/name

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "SEMVER",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "0.0.0-20260713141742-763625a20721"
          }
        ]
      }
    ],
    "package": {
      "name": "github.com/openbao/openbao",
      "purl": "pkg:golang/github.com/openbao/openbao",
      "ecosystem": "Go"
    },
    "database_specific": {
      "source": "https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/09/GHSA-34fc-gh42-pj53/GHSA-34fc-gh42-pj53.json"
    }
  },
  {
    "ranges": [
      {
        "type": "SEMVER",
        "events": [
          {
            "introduced": "0.1.0"
          },
          {
            "last_affected": "1.1.5"
          }
        ]
      }
    ],
    "package": {
      "name": "github.com/openbao/openbao",
      "purl": "pkg:golang/github.com/openbao/openbao",
      "ecosystem": "Go"
    },
    "database_specific": {
      "source": "https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/09/GHSA-34fc-gh42-pj53/GHSA-34fc-gh42-pj53.json"
    }
  }
]
Related CVEs
CVE-2026-63132

Source reference: /aliases

Publisher severity

critical

Source reference: /database_specific/severity

Linked CVE context

These ratings describe the referenced vulnerabilities and products. They are not a severity rating for every application using this dependency.

CVE-2026-63132 · Critical

openbao

Event
#63928 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement

Revision history

  1. GHSA-34fc-gh42-pj53 · Revision 1Source updated