{"id":"GHSA-gv9j-4w24-q7vx","aliases":["GO-2022-0368"],"url":"https://o3.security/vulnerability/GHSA-gv9j-4w24-q7vx","summary":"Improper random number generation in github.com/coredns/coredns","details":"### Impact\n\nCoreDNS before 1.6.6 (using go DNS package < 1.1.25) improperly generates random numbers because math/rand is used. The TXID becomes predictable, leading to response forgeries.\n\n### Patches\nThe problem has been fixed in 1.6.6+.\n\n### References\n- [CVE-2019-19794](https://nvd.nist.gov/vuln/detail/CVE-2019-19794)\n\n### For more information\nPlease consult [our security guide](https://github.com/coredns/coredns/blob/master/.github/SECURITY.md) for more information regarding our security process.\n","published":"2022-03-01T21:03:11Z","modified":"2026-02-04T03:56:13.729038Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/coredns/coredns","fixedVersion":"1.6.6"}],"fix":null,"references":[{"type":"WEB","url":"https://github.com/coredns/coredns/security/advisories/GHSA-gv9j-4w24-q7vx"},{"type":"PACKAGE","url":"github.com/coredns/coredns"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-02-04T03:56:13.729038Z"}}