Versions of the package black before 24.3.0 are vulnerable to Regular Expression Denial of Service (ReDoS) via the lines_with_leading_tabs_expanded function in the strings.py file. An attacker could exploit this vulnerability by crafting a malicious input that causes a denial of service. Exploiting this vulnerability is possible when running Black on untrusted input, or if you habitually put thousands of leading tab characters in your docstrings.
{
"cna_assigner": "snyk",
"cwe_ids": [
"CWE-1333"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/21xxx/CVE-2024-21503.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "24.3.0"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"original_tag": "24.3.0",
"range": [
{
"fixed": "552baf822992936134cbd31a38f69c8cfe7c0f05"
}
],
"source": "REFERENCES_TAG"
},
{
"range": [
{
"fixed": "f00093672628d212b8965a8993cee8bedf5fe9b8"
}
],
"source": "REFERENCES_COMMIT"
}
]
}