A flaw was found in guardrails-detectors, a component of Red Hat OpenShift AI. This vulnerability, known as Regular Expression Denial of Service (ReDoS), allows a remote attacker to provide specially crafted regular expressions to the public detection API. This can cause catastrophic backtracking, leading to a worker process consuming 100% CPU indefinitely and resulting in a denial of service for the entire guardrails-mediated LLM pipeline.
{
"cna_assigner": "redhat",
"cwe_ids": [
"CWE-1333"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/15xxx/CVE-2026-15154.json",
"unresolved_ranges": [
{
"extracted_events": [
{
"range": [
{
"fixed": "1784230964"
},
{
"fixed": "1787235925"
},
{
"fixed": "1785137880"
},
{
"fixed": "1789573032"
},
{
"fixed": "1783569145"
},
{
"fixed": "1786617316"
}
],
"source": "AFFECTED_FIELD",
"strategy": "InverseAffectedRanges"
}
]
}
]
}{
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "d857e059f8a2dedb5c7ea9a2c307c4cfd7983fd1"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
}
]
}