Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
regclient versions before 0.11.5 may send registry credentials to external servers. An attacker running a malicious registry, a malicious blob store, or a registry that does not restrict external URLs for foreign blobs can supply a layer descriptor pointing to an attacker-controlled host, and when the primary blob request fails, regclient falls back to that URL and sends the original registry's credentials if the external server asks for authentication. Upgrade to regclient 0.11.5 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 |
|---|---|---|---|---|
| 6.8 | Medium | 3.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0031, the 23rd percentile, on 11 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