Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Affected versions of oras.land/oras-go/v2 before 2.6.1 are vulnerable. A malicious or compromised registry can return a cross-host Location header during a blob upload, and the client then sends the caller's Authorization header to that other host. This can leak credentials to an attacker-controlled endpoint. Upgrade to oras.land/oras-go/v2 version 2.6.1 or later.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 7.5 | High | 3.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0038, the 32nd percentile, on 13 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:14 UTC First seen by agentprime
- 31 Oct 2026, 14:14 UTC Confirmed by OSV
Sources
- GitHub Advisory Database: GHSA-jxpm-75mh-9fp7
- OSV: GHSA-jxpm-75mh-9fp7
- github.com/oras-project/oras-go/security/advisories/GHSA-jxpm-75mh-9fp7
- github.com/oras-project/oras-go/pull/1152
- github.com/oras-project/oras-go/commit/4683c46ef078091544f5f55fd25102f002806991
- github.com/oras-project/oras-go
- github.com/oras-project/oras-go/releases/tag/v2.6.1