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CriticalFix available

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

Type: advisorySource: OSVRisk context updated1 source record

OpenBao is an open source identity-based secrets management system. Prior to 2.6.0, OpenBao's handleLogicalRecovery path in http/logical.go compared the highly privileged recovery token with ordinary string equality. A remote unauthenticated attacker able to make repeated recovery mode requests and measure response timing could infer the recovery token. The recovered token could then authorize recovery mode operations that read or modify OpenBao data. This issue is fixed in version 2.6.0.

Announced Source revision 2
Original source ↗
CVE context updated. The publisher announcement is unchanged.

BIT-openbao-2026-63132

Primary source · Revision 2

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

Security context

Source reference: osv:BIT-openbao-2026-63132

openbao

Source reference: /affected/0/package/name

Affected versions
Not stated in this record
Fixed versions
2.6.0

Source reference: /affected/0/ranges

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": "2.6.0"
          }
        ]
      }
    ],
    "package": {
      "name": "openbao",
      "purl": "pkg:bitnami/openbao",
      "ecosystem": "Bitnami"
    },
    "severity": [
      {
        "type": "CVSS_V4",
        "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
      }
    ],
    "database_specific": {
      "source": "https://github.com/bitnami/vulndb/tree/main/data/openbao/BIT-openbao-2026-63132.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

github.com/openbao/openbao, github.com/openbao/openbao

Event
#63929 · Revision 2
Added to Heist Feed
Publisher date
Read the original announcement