{"cve":"CVE-2022-41715","nvd":{"published":"2022-10-14T15:16:20.780","modified":"2026-06-17T05:03:41.893","status":"Modified","description":"Programs which compile regular expressions from untrusted sources may be vulnerable to memory exhaustion or denial of service. The parsed regexp representation is linear in the size of the input, but in some cases the constant factor can be as high as 40,000, making relatively small regexps consume much larger amounts of memory. After fix, each regexp being parsed is limited to a 256 MB memory footprint. Regular expressions whose representation would use more space than that are rejected. Normal use of regular expressions is unaffected.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":[],"references":["https://go.dev/cl/439356","https://go.dev/issue/55949","https://groups.google.com/g/golang-announce/c/xtuG5faxtaU","https://pkg.go.dev/vuln/GO-2022-1039","https://security.gentoo.org/glsa/202311-09"],"products":["golang:go"],"source":"nvd","synced_at":"2026-10-19T21:36:05.460296998+00:00"},"epss":{"cve":"CVE-2022-41715","score":0.01726,"percentile":0.7755,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GO-2022-1039","url":"https://osv.dev/vulnerability/GO-2022-1039","summary":"Memory exhaustion when compiling regular expressions in regexp/syntax","modified":"2026-07-15T14:29:33.477111898Z","packages":[{"ecosystem":"Go","name":"stdlib","purl":"pkg:golang/stdlib","ranges":["<1.18.7",">=1.19.0-0 <1.19.2"],"fixed":["1.18.7","1.19.2"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}