> CVE-2026-73840 [MEDIUM]

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PUBLISHED
2026-08-13 22:17
MODIFIED
2026-08-13 22:17
CVSS_SCORE V3
5.3
EPSS (Prob. Exploit)
0.35%
Top 71.8%
DATA SOURCES:
NVD đź”— 2026-08-13 CWE MITRE đź”— 2026-11-01 FIRST EPSS đź”— 2026-11-01 OSV đź”— 2026-10-26

> DESCRIPTION

OpenChoreo is a complete, open-source developer platform for Kubernetes. Prior to 1.0.3, 1.1.3, and 1.2.0-rc.2, the POST /api/v1alpha1/autobuild endpoint in internal/openchoreo-api/api/handlers/webhook_handler.go selected a webhook provider from caller-controlled X-Event-Key, accepted Bitbucket requests without HMAC-SHA256 in X-Hub-Signature or a configured bitbucket-secret, and allowed unauthenticated build triggers for components matched by repository URL and branch, including cross-provider triggers using attacker-supplied commit SHAs. This issue is fixed in versions 1.0.3, 1.1.3, and 1.2.0-rc.2.

> 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:L
EXPLOITABILITY
3.9
IMPACT
1.4

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
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
Low (L)
Interruption partielle du service possible

> RÉSUMÉ DES IMPACTS

Confidentialité
None
Aucune divulgation d'informations
Intégrité
None
Aucune modification de données possible
Disponibilité
Low
Interruption partielle du service possible

> WEAKNESSES

CWE-287 CWE-290 CWE-345

> CWE DETAILED DESCRIPTIONS

CWE-287: Improper Authentication - When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. | CWE-290: Authentication Bypass by Spoofing - This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks. | CWE-345: Insufficient Verification of Data Authenticity - The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

OpenChoreo: Unauthenticated build/workflow trigger via git-provider confusion (webhook signature bypass)

AFFECTED PACKAGES:
Unknown / Unknown
23 versions affected
ALIASES:
GHSA-c5f6-2rm9-2w8g, GO-2026-6360

> HISTORIQUE DES MODIFICATIONS

Première apparition
13/08/2026 22:17
Source: NVD
📊 ENRICHISSEMENT 01/09/2026 06:02
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-287: Improper Authentication - When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. | CWE-290: Authentication Bypass by Spo...
Total des modifications: 1 Dernière mise à jour: 2 months ago

> REFERENCES

https://github.com/openchoreo/openchoreo/commit/268efd9b762a3f4f72b55d9c1b13dfc5...
https://github.com/openchoreo/openchoreo/commit/8af4a3fc8725fc2d8a9de9611e77278a...
https://github.com/openchoreo/openchoreo/commit/f540553db7143141b73bb37fae02102e...
https://github.com/openchoreo/openchoreo/pull/4239
https://github.com/openchoreo/openchoreo/pull/4252
https://github.com/openchoreo/openchoreo/pull/4253
https://github.com/openchoreo/openchoreo/releases/tag/v1.0.3
https://github.com/openchoreo/openchoreo/releases/tag/v1.1.3
https://github.com/openchoreo/openchoreo/releases/tag/v1.2.0-rc.2
https://github.com/openchoreo/openchoreo/security/advisories/GHSA-c5f6-2rm9-2w8g
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