GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.10 before 18.4.5, 18.5 before 18.5.3, and 18.6 before 18.6.1 that could have allowed an unauthenticated user to cause a Denial of Service condition by sending specifically crafted requests containing malicious JSON payloads.
{
"cna_assigner": "GitLab",
"cwe_ids": [
"CWE-770"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/12xxx/CVE-2025-12571.json"
}{
"cpe": [
"cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
"cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
"cpe:2.3:a:gitlab:gitlab:18.6.0:*:*:*:community:*:*:*",
"cpe:2.3:a:gitlab:gitlab:18.6.0:*:*:*:enterprise:*:*:*"
],
"extracted_events": [
{
"introduced": "17.10.0"
},
{
"fixed": "18.4.5"
},
{
"introduced": "18.5.0"
},
{
"fixed": "18.5.3"
},
{
"introduced": "18.6.0"
},
{
"last_affected": "18.6.0"
}
],
"source": [
"CPE_RANGE",
"CPE_STRING"
]
}