CVEvulnerability

CVE-2026-48978

2.1 LOW Published 2026-07-17 Modified 2026-10-24 Official page ↗
Status
Deferred
Published
2026-07-17
Last modified
2026-10-24
Assigner
[email protected]
CVSS 4.0 ([email protected])
2.1 LOW — 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
Weaknesses
CWE-319, CWE-918

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.

Related

Weakness · CWE (2)

  • CWE-319 Cleartext Transmission of Sensitive Information weakness
  • CWE-918 Server-Side Request Forgery weakness

References