> CVE-2026-63132 [CRITICAL]

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PUBLISHED
2026-09-23 19:17
MODIFIED
2026-09-23 19:17
CVSS_SCORE V3
9.2
EPSS (Prob. Exploit)
0.50%
Top 58.3%
DATA SOURCES:
NVD 🔗 2026-09-23 RED HAT 🔗 2026-09-27 CWE MITRE 🔗 2026-10-01 FIRST EPSS 🔗 2026-10-23 GITHUB 🔗 2026-10-15 OSV 🔗 2026-10-19

> DESCRIPTION

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.

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> CVSS V3 METRICS

CVSS_VECTOR
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

> MÉTRIQUES CVSS DÉTAILLÉES

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
Métrique Valeur Interprétation
AV (Vecteur d'Attaque)
Attack Vector
Network (N)
Exploit possible à distance via réseau (HTTP, API, etc.)
AC (Complexité d'Attaque)
Attack Complexity
High (H)
Conditions spécifiques doivent être réunies pour exploiter
PR (Privilèges Requis)
Privileges Required
None (N)
Aucune authentification requise
UI (Interaction Utilisateur)
User Interaction
None (N)
Aucune interaction utilisateur nécessaire
S (Périmètre)
Scope
Unchanged (U)
Impact reste dans le périmètre du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
High (H)
Divulgation totale d'informations
I (Impact Intégrité)
Integrity Impact
High (H)
Modification totale des données possible
A (Impact Disponibilité)
Availability Impact
High (H)
Interruption totale du service possible

> RÉSUMÉ DES IMPACTS

Confidentialité
High
Divulgation totale d'informations
Intégrité
High
Modification totale des données possible
Disponibilité
High
Interruption totale du service possible

> WEAKNESSES

CWE-208

> CWE DETAILED DESCRIPTIONS

CWE-208: Observable Timing Discrepancy - Two separate operations in a product require different amounts of time to complete, in a way that is observable to an actor and reveals security-relevant information about the state of the product, such as whether a particular operation was successful or not.

> RED HAT SEVERITY ASSESSMENT

THREAT SEVERITY
Important

> GITHUB SECURITY ADVISORY

GHSA-34fc-gh42-pj53 CRITICAL

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

AFFECTED PACKAGES:
GO / github.com/openbao/openbao
>= 0.1.0, <= 1.1.5
GO / github.com/openbao/openbao
< 0.0.0-20260713141742-763625a20721
Fixed in: 0.0.0-20260713141742-763625a20721

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

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

AFFECTED PACKAGES:
Unknown / Unknown
131 versions affected
ALIASES:
BIT-openbao-2026-63132, GHSA-34fc-gh42-pj53, GO-2026-6553

> HISTORIQUE DES MODIFICATIONS

Première apparition
23/09/2026 19:17
Source: NVD
📊 ENRICHISSEMENT 01/10/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-208: Observable Timing Discrepancy - Two separate operations in a product require different amounts of time to complete, in a way that is observable to an actor and reveals security-relevant infor...
📊 ENRICHISSEMENT 27/09/2026 05:01
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
N/A
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 27/09/2026 05:01
REDHAT
Champ modifié: Red Hat
Ancienne valeur:
Non
Nouvelle valeur:
Oui
Total des modifications: 3 Dernière mise à jour: 3 weeks ago

> REFERENCES

https://github.com/hashicorp/vault/blob/main/CHANGELOG.md#203
https://github.com/openbao/openbao/commit/0f2d90c331f25d1c6cd108638da03f4c7bd949...
https://github.com/openbao/openbao/commit/763625a2072103ea9e9122f2a8408e0b988d28...
https://github.com/openbao/openbao/pull/3388
https://github.com/openbao/openbao/pull/3472
https://github.com/openbao/openbao/releases/tag/v2.6.0
https://github.com/openbao/openbao/security/advisories/GHSA-34fc-gh42-pj53
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