> CVE-2026-41520 [HIGH]

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PUBLISHED
2026-05-08 23:16
MODIFIED
2026-05-08 23:16
CVSS_SCORE V3
7.9
EPSS (Prob. Exploit)
0.08%
Top 99.9%
DATA SOURCES:
NVD đź”— 2026-05-09 CWE MITRE đź”— 2026-11-01 FIRST EPSS đź”— 2026-11-08 GITHUB đź”— 2026-11-05 OSV đź”— 2026-11-02

> DESCRIPTION

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to versions 1.17.15, 1.18.9, and 1.19.3, the output of cilium-bugtool can contain sensitive data when the tool is run against Cilium deployments with WireGuard encryption enabled. This issue has been patched in versions 1.17.15, 1.18.9, and 1.19.3.

> 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:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
EXPLOITABILITY
1.5
IMPACT
5.8

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
Métrique Valeur Interprétation
AV (Vecteur d'Attaque)
Attack Vector
Local (L)
Exploit nécessite un accès local au système
AC (Complexité d'Attaque)
Attack Complexity
Low (L)
Peu de conditions requises pour exploiter
PR (Privilèges Requis)
Privileges Required
High (H)
Authentifié avec privilèges administratifs
UI (Interaction Utilisateur)
User Interaction
None (N)
Aucune interaction utilisateur nécessaire
S (Périmètre)
Scope
Changed (C)
Impact s'Ă©tend au-delĂ  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
None (N)
Aucune interruption de service

> RÉSUMÉ DES IMPACTS

Confidentialité
High
Divulgation totale d'informations
Intégrité
High
Modification totale des données possible
Disponibilité
None
Aucune interruption de service

> WEAKNESSES

CWE-200 CWE-312

> CWE DETAILED DESCRIPTIONS

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor - The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. | CWE-312: Cleartext Storage of Sensitive Information - The product stores sensitive information in cleartext within a resource that might be accessible to another control sphere.

> GITHUB SECURITY ADVISORY

GHSA-gj49-89wh-h4gj HIGH

Cillium exposes sensitive information included in the cilium-bugtool debug archive

AFFECTED PACKAGES:
GO / github.com/cilium/cilium
>= 1.19.0, < 1.19.3
Fixed in: 1.19.3
GO / github.com/cilium/cilium
>= 1.18.0, < 1.18.9
Fixed in: 1.18.9
GO / github.com/cilium/cilium
< 1.17.15
Fixed in: 1.17.15

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

Cillium exposes sensitive information included in the cilium-bugtool debug archive

AFFECTED PACKAGES:
Unknown / Unknown
166 versions affected
ALIASES:
BIT-cilium-2026-41520, BIT-cilium-operator-2026-41520, BIT-hubble-relay-2026-41520, GHSA-gj49-89wh-h4gj, GO-2026-5400

> HISTORIQUE DES MODIFICATIONS

Première apparition
08/05/2026 23:16
Source: NVD
đź“Š ENRICHISSEMENT 01/06/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-200: Exposure of Sensitive Information to an Unauthorized Actor - The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. | CWE-...
Total des modifications: 1 Dernière mise à jour: 5 months ago

> REFERENCES

https://github.com/cilium/cilium/releases/tag/v1.17.15
https://github.com/cilium/cilium/releases/tag/v1.18.9
https://github.com/cilium/cilium/releases/tag/v1.19.3
https://github.com/cilium/cilium/security/advisories/GHSA-gj49-89wh-h4gj
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