CVE-2026-34165 is a medium-severity denial-of-service vulnerability affecting the go-git library, versions 5.0.0 through 5.17.0. A maliciously crafted .idx file can cause asymmetric memory consumption, leading to system resource exhaustion and a DoS condition. Exploitation requires local write access to the .git directory to introduce the malicious file, indicating a local attack vector with low complexity. The potential impact is a complete denial of service due to memory exhaustion. There is currently no evidence of active exploitation, public exploit code, or significant community discussion regarding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 5.0.0, < 5.17.1CPE matchmatch criteria | cpe:2.3:a:go-git_project:go-git:*:*:*:*:*:go:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
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