ESI plugin does not have the limit for maximum inclusion depth, and that allows excessive memory consumption if malicious instructions are inserted.
Users can use a new setting for the plugin (--max-inclusion-depth) to limit it. This issue affects Apache Traffic Server: from 10.0.0 through 10.0.5, from 9.0.0 through 9.2.10.
Users are recommended to upgrade to version 9.2.11 or 10.0.6, which fixes the issue.
{
"unresolved_ranges": [
{
"source": "AFFECTED_FIELD",
"extracted_events": [
{
"introduced": "10.0.0"
},
{
"last_affected": "10.0.5"
},
{
"introduced": "9.0.0"
},
{
"last_affected": "9.2.10"
}
]
},
{
"source": "DESCRIPTION",
"extracted_events": [
{
"introduced": "10.0.0"
},
{
"fixed": "10.0.5"
},
{
"introduced": "9.0.0"
},
{
"fixed": "9.2.10"
}
]
}
],
"cwe_ids": [
"CWE-400"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/49xxx/CVE-2025-49763.json",
"cna_assigner": "apache"
}