DEBIAN-CVE-2026-48978

Advisory lineage Upstream: 1 Downstream: 0
Upstream
CVE-2026-48978
Published: 17 Jul 2026, 20:17
Last modified:18 Jul 2026, 16:00

Vulnerability Summary

Overall Risk (default)
minimal
8/100
CVSS Score
2.1 LOW
4.0 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

17 Jul 2026, 20:17
Published
Vulnerability first disclosed
18 Jul 2026, 16:00
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v4.0•LOW•Score: 2.1CVSS: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

Affected Systems

  • debian•golang-oras-oras-go

    all | all | all

References (1)