> CVE-2026-48978 [LOW]

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PUBLISHED
2026-07-17 20:17
MODIFIED
2026-07-17 20:17
CVSS_SCORE V3
2.1
EPSS (Prob. Exploit)
0.21%
Top 89.2%
DATA SOURCES:
NVD 🔗 2026-07-17 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-10-25 GITHUB 🔗 2026-10-29 OSV 🔗 2026-07-23

> DESCRIPTION

oras-go is a Go library for managing OCI artifacts. Prior to 2.6.1, auth.Client follows the realm URL from a registry's WWW-Authenticate: Bearer challenge without validating the scheme or host, allowing a malicious or compromised registry to cause SSRF to internal networks such as http://169.254.169.254/, http://10.0.0.x/, and http://127.0.0.1/, or to downgrade a registry contacted over https:// to an http:// token endpoint in registry/remote/auth/client.go through Client.Do(), Client.fetchBearerToken(), fetchDistributionToken, and fetchOAuth2Token. This issue is fixed in version 2.6.1.

> 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:N/PR:N/UI:A/VC:L/VI:N/VA:N/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:N/PR:N/UI:A/VC:L/VI:N/VA:N/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
Required (R)
Nécessite une action utilisateur (clic lien, ouverture fichier, etc.)
S (Périmètre)
Scope
Unchanged (U)
Impact reste dans le périmètre du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
Low (L)
Divulgation limitée 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
Low
Divulgation limitée d'informations
Intégrité
None
Aucune modification de données possible
Disponibilité
None
Aucune interruption de service

> WEAKNESSES

CWE-319 CWE-918

> CWE DETAILED DESCRIPTIONS

CWE-319: Cleartext Transmission of Sensitive Information - The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors. | CWE-918: Server-Side Request Forgery - The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

> GITHUB SECURITY ADVISORY

GHSA-xf85-363p-868w LOW

oras-go: Malicious registry can hijack Bearer token realm to exfiltrate credentials and refresh tokens

AFFECTED PACKAGES:
GO / oras.land/oras-go
<= 1.2.7
GO / oras.land/oras-go/v2
< 2.6.1
Fixed in: 2.6.1

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

oras-go: Malicious registry can hijack Bearer token realm to exfiltrate credentials and refresh tokens

AFFECTED PACKAGES:
Unknown / Unknown
21 versions affected
ALIASES:
GHSA-xf85-363p-868w

> HISTORIQUE DES MODIFICATIONS

Première apparition
17/07/2026 20:17
Source: NVD
📊 ENRICHISSEMENT 01/11/2026 06:59
CWE
Champ modifié: Description CWE
Ancienne valeur:
CWE-319: Cleartext Transmission of Sensitive Information - The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors....
Nouvelle valeur:
CWE-319: Cleartext Transmission of Sensitive Information - The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors....
📊 ENRICHISSEMENT 01/08/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-319: Cleartext Transmission of Sensitive Information - The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors....
Total des modifications: 2 Dernière mise à jour: 5 days ago

> REFERENCES

https://github.com/oras-project/oras-go/commit/7a9f4b0b9558821b0422152ebe21ae569...
https://github.com/oras-project/oras-go/releases/tag/v2.6.1
https://github.com/oras-project/oras-go/security/advisories/GHSA-xf85-363p-868w
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