Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Go module github.com/go-git/go-git/v5 before 5.18.0 and github.com/go-git/go-git/v6 before 6.0.0-alpha.2 can leak HTTP authentication credentials during smart-HTTP clone and fetch when the remote redirects the initial request to a different host. An attacker who controls or influences that redirect target could capture the credentials and reuse them, depending on their scope. Upgrade to v5.18.0 or v6.0.0-alpha.2; the source says the risk mainly affects untrusted or misconfigured servers and unsecured HTTP.
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 |
|---|---|---|---|---|
| 4.7 | Medium | 3.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0026, the 17th percentile, on 12 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 8 May 2026, 14:16 UTC Confirmed by NVD
- 31 Oct 2026, 14:14 UTC First seen by agentprime
- 31 Oct 2026, 14:14 UTC Confirmed by OSV