Twig is a template language for PHP. Prior to 3.27.0, the per-template filter, tag, and function allow-list verdict is computed when a Template instance is constructed and can remain cached after sandbox state changes between renders, allowing a later sandboxed render to reuse a template that was originally checked with a different or empty policy. This issue is fixed in version 3.27.0.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-693",
"CWE-863"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49981.json"
}{
"extracted_events": [
{
"cpe": "cpe:2.3:a:symfony:twig:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "3.27.0"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "23eb6eb1267cb0d303b91eb5cff9b0c559c538a4"
}
],
"source": "REFERENCES_COMMIT"
},
{
"original_tag": "v3.27.0",
"range": [
{
"fixed": "04ae1bfe9463c816cf72ca0abe7eae2c77a9a9ed"
}
],
"source": "REFERENCES_TAG"
}
]
}