CVE-2026-34165

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Source
https://cve.org/CVERecord?id=CVE-2026-34165
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-34165.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-34165
Aliases
Downstream
CGA (520)
CLEANSTART (39)
DEBIAN (1)
MINI (117)
openSUSE (3)
UBUNTU (1)
Related
openSUSE (3)
Published
2026-03-31T13:46:37Z
Modified
2026-10-21T02:56:52Z
Severity
  • 5.0 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
Summary
go-git: Maliciously crafted idx file can cause asymmetric memory consumption
Details

go-git is an extensible git implementation library written in pure Go. From version 5.0.0 to before version 5.17.1, a vulnerability has been identified in which a maliciously crafted .idx file can cause asymmetric memory consumption, potentially exhausting available memory and resulting in a denial-of-service (DoS) condition. Exploitation requires write access to the local repository's .git directory, it order to create or alter existing .idx files. This issue has been patched in version 5.17.1.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-191",
        "CWE-770"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34165.json"
}
References

Affected packages

Git / github.com/go-git/go-git

Affected ranges

Type
GIT
Repo
https://github.com/go-git/go-git
Events
Introduced
9d0f15c4fa712cdacfa3887e9baac918f093fbf6
Fixed
5e23dfd02db92644dc4a3358ceb297fce875b772
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "5.0.0"
                },
                {
                    "fixed":  "5.17.1"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StringRangeExpression"
        },
        {
            "original_tag":  "v5.17.1",
            "range":  [
                {
                    "fixed":  "5e23dfd02db92644dc4a3358ceb297fce875b772"
                }
            ],
            "source":  "REFERENCES_TAG"
        },
        {
            "cpe":  "cpe:2.3:a:go-git_project:go-git:*:*:*:*:*:go:*:*",
            "range":  [
                {
                    "introduced":  "5.0.0"
                },
                {
                    "fixed":  "5.17.1"
                }
            ],
            "source":  "CPE_RANGE"
        }
    ]
}

Affected versions

v5.*
v5.0.0
v5.1.0
v5.10.0
v5.10.1
v5.11.0
v5.12.0
v5.13.0
v5.13.1
v5.13.2
v5.14.0
v5.15.0
v5.16.0
v5.16.1
v5.16.2
v5.16.3
v5.16.4
v5.16.5
v5.17.0
v5.2.0
v5.3.0
v5.4.0
v5.4.1
v5.4.2
v5.5.0
v5.5.1
v5.5.2
v5.6.0
v5.6.1
v5.7.0
v5.8.0
v5.8.1
v5.9.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-34165.json"