GitLab has remediated an issue in GitLab CE/EE affecting all versions from 11.8 before 19.0.5, 19.1 before 19.1.3, and 19.2 before 19.2.1 that under certain conditions could have allowed an unauthenticated user to cause a denial of service due to insufficient resource throttling when processing merge request discussions.
{
"cna_assigner": "GitLab",
"cwe_ids": [
"CWE-770"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/15xxx/CVE-2026-15975.json",
"unresolved_ranges": [
{
"extracted_events": [
{
"introduced": "11.8"
},
{
"fixed": "19.0.5"
},
{
"introduced": "19.1"
},
{
"fixed": "19.1.3"
},
{
"introduced": "19.2"
},
{
"fixed": "19.2.1"
}
],
"source": "AFFECTED_FIELD"
},
{
"extracted_events": [
{
"introduced": "11.8"
},
{
"fixed": "19.0.5"
},
{
"introduced": "19.1"
},
{
"fixed": "19.1.3"
},
{
"introduced": "19.2"
},
{
"fixed": "19.2.1"
}
],
"source": "DESCRIPTION"
}
]
}{
"cpe": [
"cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
"cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
"cpe:2.3:a:gitlab:gitlab:19.2.0:*:*:*:community:*:*:*",
"cpe:2.3:a:gitlab:gitlab:19.2.0:*:*:*:enterprise:*:*:*"
],
"extracted_events": [
{
"introduced": "11.8.0"
},
{
"fixed": "19.0.5"
},
{
"introduced": "19.1.0"
},
{
"fixed": "19.1.3"
},
{
"introduced": "19.2.0"
},
{
"last_affected": "19.2.0"
}
],
"source": [
"CPE_RANGE",
"CPE_STRING"
]
}