GitPython before 3.1.50 fails to validate newline characters in the section parameter of config_writer(), allowing attackers to inject arbitrary section headers into .git/config. Attackers can inject newlines to create a forged [core] section with hooksPath pointing to attacker-controlled directories, achieving remote code execution when git hooks are triggered.
{
"cwe_ids": [
"CWE-20"
],
"cna_assigner": "VulnCheck",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67326.json"
}{
"source": [
"AFFECTED_FIELD",
"DESCRIPTION"
],
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "3.1.50"
}
]
}