Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 7.3.0-BETA1 until 7.4.12 and 8.0.12, the JsonPath component compiles attacker-controlled match() and search() filter patterns directly into preg_match() without a length cap, i-regexp restriction, or bounded backtracking, allowing catastrophic-backtracking expressions to pin worker CPU and cause denial of service. This issue is fixed in versions 7.4.12 and 8.0.12.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-1333",
"CWE-400"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45756.json"
}{
"extracted_events": [
{
"cpe": "cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "7.3.0"
},
{
"fixed": "7.4.12"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "8.0.0"
},
{
"fixed": "8.0.12"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "1ac2d47418ec23066112db1e6ca35be6fe123d14"
}
],
"source": "REFERENCES_COMMIT"
},
{
"original_tag": "v7.4.12",
"range": [
{
"fixed": "275f5cbccbcc50205206f05e599c4f57009aadb8"
}
],
"source": "REFERENCES_TAG"
},
{
"original_tag": "v8.0.12",
"range": [
{
"fixed": "06d3b2c9a8aeb5d8493738cc51e24f6a1215827c"
}
],
"source": "REFERENCES_TAG"
}
]
}