CVE catalog
CVE-2026-48978
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, allowi
- Severity
- Low · CVSS 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.21% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | golang-oras-oras-go | sid | 2.6.2-2 | fixed |
| Debian | golang-oras-oras-go | forky | 2.6.2-2 | fixed |
| Debian | golang-oras-oras-go | trixie | 2.5.0-1 | vulnerable |
| Debian | golang-oras-oras-go | bookworm | 1.1.1-1 | vulnerable |
| Cpe | golang-oras-oras-go | Not reported | Not reported | vulnerable |
| Suse | helm | linux enterprise server 16.0 | 3.21.2-160000.2.2 | fixed |
| Suse | helm | linux enterprise server for sap applications 16.0 | 3.21.2-160000.2.2 | fixed |
| Suse | helm | linux micro 6.2 | 3.21.2-160000.2.2 | fixed |
| Opensuse | helm | leap 16.0 | 3.21.2-160000.2.1 | fixed |
| Opensuse | helm3 | tumbleweed | 3.21.2-2.1 | fixed |
| Opensuse | helm | tumbleweed | 4.2.2-2.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | golang-oras-oras-go | source | sid | 2.6.2-1 | not yet assigned | Not reported | [1142456] |
| Debian | golang-oras-oras-go | source | forky | 2.6.2-1 | not yet assigned | Not reported | [1142456] |
| Debian | golang-oras-oras-go | source | trixie | (unfixed) | not yet assigned | Not reported | [1142456] |
| Debian | golang-oras-oras-go | source | bookworm | (unfixed) | not yet assigned | Not reported | [1142456] |
| Suse | helm | rpm | linux enterprise server 16.0 | 3.21.2-160000.2.2 | Not reported | SUSE-SU-2026:22650-1 | Not reported |
| Suse | helm | rpm | linux enterprise server for sap applications 16.0 | 3.21.2-160000.2.2 | Not reported | SUSE-SU-2026:22650-1 | Not reported |
| Suse | helm | rpm | linux micro 6.2 | 3.21.2-160000.2.2 | Not reported | SUSE-SU-2026:22603-1 | Not reported |
| Opensuse | helm | rpm | leap 16.0 | 3.21.2-160000.2.1 | Not reported | OPENSUSE-SU-2026:21331-1 | Not reported |
| Opensuse | helm3 | rpm | tumbleweed | 3.21.2-2.1 | Not reported | OPENSUSE-SU-2026:11187-1 | Not reported |
| Opensuse | helm | rpm | tumbleweed | 4.2.2-2.1 | Not reported | OPENSUSE-SU-2026:11186-1 | Not reported |
Notes
[trixie] golang-oras-oras-go: Minor issue [bookworm] golang-oras-oras-go: Limited support, minor issue; v1.1.1 affected too, auth/client.go follows an unvalidated WWW-Authenticate realm
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [golang-oras-oras-go-dev]Affected
Source package: [golang-oras-oras-go]
Details (2)
1.1.1-1· all · bookwormAffected
nvd · golang-oras-oras-go · debian · bookworm; nvd · golang-oras-oras-go · debian · 12
1.1.1-1· all · bookwormAffected
nvd · golang-oras-oras-go · debian · bookworm; nvd · golang-oras-oras-go · debian · 12
[Debian 13 (Trixie)]
- [golang-oras-oras-go-dev]Affected
Source package: [golang-oras-oras-go]
Details (2)
2.5.0-1· all · trixieAffected
nvd · golang-oras-oras-go · debian · 13
2.5.0-1· all · trixieAffected
nvd · golang-oras-oras-go · debian · 13
[openSUSE Tumbleweed]
- [helm3-bash-completion]Unknown
Source package: [helm3]
Details (1)
3.21.3-6.1· noarch · tumbleweedUnknown · Fixed:
3.21.2-2.1Version impact unknown
nvd · helm3 · opensuse · tumbleweed
- [helm3-fish-completion]Unknown
Source package: [helm3]
Details (1)
3.21.3-6.1· noarch · tumbleweedUnknown · Fixed:
3.21.2-2.1Version impact unknown
nvd · helm3 · opensuse · tumbleweed
- [helm3-zsh-completion]Unknown
Source package: [helm3]
Details (1)
3.21.3-6.1· noarch · tumbleweedUnknown · Fixed:
3.21.2-2.1Version impact unknown
nvd · helm3 · opensuse · tumbleweed
- [helm-bash-completion]Unknown
Source package: [helm]
Details (1)
4.2.4-1.1· noarch · tumbleweedUnknown · Fixed:
4.2.2-2.1Version impact unknown
nvd · helm · opensuse · tumbleweed
- [helm-fish-completion]Unknown
Source package: [helm]
Details (1)
4.2.4-1.1· noarch · tumbleweedUnknown · Fixed:
4.2.2-2.1Version impact unknown
nvd · helm · opensuse · tumbleweed
- [helm-zsh-completion]Unknown
Source package: [helm]
Details (1)
4.2.4-1.1· noarch · tumbleweedUnknown · Fixed:
4.2.2-2.1Version impact unknown
nvd · helm · opensuse · tumbleweed
- [helm]Fixed
Source package: [helm]
Details (1)
4.2.4-1.1· x86_64 · tumbleweedFixed · Fixed:
4.2.2-2.1nvd · helm · opensuse · tumbleweed
- [helm3]Fixed
Source package: [helm3]
Details (1)
3.21.3-6.1· x86_64 · tumbleweedFixed · Fixed:
3.21.2-2.1nvd · helm3 · opensuse · tumbleweed
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_11186-1.json]
- [https://github.com/oras-project/oras-go/commit/7a9f4b0b9558821b0422152ebe21ae56930fe764]
- [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]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-48978]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-48978]
- [https://osv.dev/vulnerability/SUSE-SU-2026:22603-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:22650-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:11186-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:11187-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:21331-1]
- [https://security-tracker.debian.org/tracker/CVE-2026-48978]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-48978.json]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]