# CVE-2026-48978: golang-oras-oras-go: oras-go is a Go library for managing OCI artifacts

CVE-2026-48978 is fixed in 4 products on 1 platform, first by SUSE-SU-2026:2823-1, released July 9, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-48978
- Priority: Routine
- CVSS: n/a (moderate)
- EPSS: 0.0021
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jul 9, 2026

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | golang-oras-oras-go Debian 14 | 2.6.2-1 | [DEBIAN-CVE-2026-48978](https://patchblox.com/security/data/fix/linux/debian-cve-2026-48978.md) | Aug 1, 2026 |
| Linux | govulncheck-vulndb opensuse-leap 16.0 | 0.0.20260727T201416-160000.1.1 | [OPENSUSE-SU-2026:21551-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21551-1.md) | Aug 10, 2026 |
| Linux | govulncheck-vulndb sles 16.0 | 0.0.20260727T201416-160000.1.1 | [SUSE-SU-2026:23227-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23227-1.md) | Aug 10, 2026 |
| Linux | helm opensuse-leap 16.0 | 4.3.0-160000.1.1 | [OPENSUSE-SU-2026:21983-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21983-1.md) | Sep 30, 2026 |
| Linux | helm sles 15.6 | 3.21.2-150000.1.80.1 | [SUSE-SU-2026:2823-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2823-1.md) | Jul 9, 2026 |
| Linux | helm sles 15.7 | 3.21.2-150000.1.80.1 | [SUSE-SU-2026:2823-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2823-1.md) | Jul 9, 2026 |
| Linux | helm sles 16.0 | 4.3.0-160000.1.1 | [SUSE-SU-2026:23984-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23984-1.md) | Sep 30, 2026 |
| Linux | soci-snapshotter amzn 2023 | 0.16.0-1.amzn2023.0.1 | [ALAS2023-2026-3153](https://patchblox.com/security/data/fix/linux/alas2023-2026-3153.md) | Nov 7, 2026 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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