Cacti is an open source performance and fault management framework. Prior to version 1.2.31, the prior blocklist ([;&| $\\n\r]) omitted single-quote, double-quote, redirect operators, subshell parens and braces. An authenticated admin could save an input_string containing single-quote, redirect operator, or subshell parens, and pass the check. This issue has been patched in version 1.2.31.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-78"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/39xxx/CVE-2026-39902.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "1.2.31"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"introduced": "0"
},
{
"fixed": "1.2.31"
}
],
"source": "DESCRIPTION"
}
]
}