> CVE-2026-44283 [NONE]

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PUBLISHED
2026-05-14 18:16
MODIFIED
2026-05-14 18:26
CVSS_SCORE V3
0.0
EPSS (Prob. Exploit)
0.22%
Top 86.8%
DATA SOURCES:
NVD đź”— 2026-05-14 CWE MITRE đź”— 2026-11-01 FIRST EPSS đź”— 2026-11-01 GITHUB đź”— 2026-11-05 OSV đź”— 2026-11-02 MSRC đź”— 2026-11-02

> DESCRIPTION

etcd is a distributed key-value store for the data of a distributed system. Prior to 3.4.44, 3.5.30, and 3.6.11, a vulnerability in etcd allows read access via PrevKv, or lease attachment in Put requests within transaction operations, to bypass RBAC authorization checks. An authenticated user without sufficient read or lease-related permissions may be able to access unauthorized data or attach leases by invoking transaction operations with these features enabled. This vulnerability is fixed in 3.4.44, 3.5.30, and 3.6.11.

> AFFECTED_PRODUCTS

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

> CVSS V3 METRICS

CVSS_VECTOR
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N
EXPLOITABILITY
3.9
IMPACT
0.0

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N
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
Low (L)
Peu de conditions requises 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
None (N)
Aucune divulgation d'informations
I (Impact Intégrité)
Integrity Impact
None (N)
Aucune modification de données possible
A (Impact Disponibilité)
Availability Impact
None (N)
Aucune interruption de service

> RÉSUMÉ DES IMPACTS

Confidentialité
None
Aucune divulgation d'informations
Intégrité
None
Aucune modification de données possible
Disponibilité
None
Aucune interruption de service

> WEAKNESSES

CWE-863

> CWE DETAILED DESCRIPTIONS

CWE-863: Incorrect Authorization - The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

> GITHUB SECURITY ADVISORY

GHSA-x35m-3gp4-4fh5 LOW

etcd RBAC bypass allows unauthorized data access via PrevKv/lease attachment in nested transaction Put requests

AFFECTED PACKAGES:
GO / go.etcd.io/etcd
<= 3.4.43
Fixed in: 3.4.44
GO / go.etcd.io/etcd/v3
>= 3.5.0, <= 3.5.29
Fixed in: 3.5.30
GO / go.etcd.io/etcd/v3
>= 3.6.0, <= 3.6.10
Fixed in: 3.6.11

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

etcd: Read access via PrevKv in etcd transactions may bypass RBAC authorization checks

AFFECTED PACKAGES:
Unknown / Unknown
531 versions affected
ALIASES:
BIT-etcd-2026-44283, GHSA-x35m-3gp4-4fh5, GO-2026-5736

> HISTORIQUE DES MODIFICATIONS

Première apparition
14/05/2026 18:16
Source: NVD
đź“Š ENRICHISSEMENT 01/06/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-863: Incorrect Authorization - The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.
Total des modifications: 1 Dernière mise à jour: 5 months ago

> REFERENCES

https://github.com/etcd-io/etcd/security/advisories/GHSA-x35m-3gp4-4fh5
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