{"id":"CVE-2019-25001","aliases":["GHSA-xr7r-88qv-q7hm","RUSTSEC-2019-0025"],"url":"https://o3.security/vulnerability/CVE-2019-25001","summary":"Out of bounds write in serde_cbor","details":"Affected versions of this crate did not properly check if semantic tags were nested excessively during deserialization. This allows an attacker to craft small (< 1 kB) CBOR documents that cause a stack overflow. The flaw was corrected by limiting the allowed number of nested tags.","published":"2020-12-31T10:15:14.177Z","modified":"2026-07-08T20:05:03.786823Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"crates.io","name":"serde_cbor","fixedVersion":"0.10.2"}],"fix":{"url":"https://github.com/pyfisch/cbor/pull/153","label":"pyfisch/cbor#153"},"references":[{"type":"EVIDENCE","url":"https://rustsec.org/advisories/RUSTSEC-2019-0025.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2019-25001"},{"type":"WEB","url":"https://github.com/pyfisch/cbor/pull/153"},{"type":"WEB","url":"https://github.com/pyfisch/cbor/commit/1aec4f9d71855dbfb223fa61ca60260400cc5d5f"},{"type":"PACKAGE","url":"https://github.com/pyfisch/cbor"},{"type":"WEB","url":"https://github.com/pyfisch/cbor/releases/tag/v0.10.2"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T20:05:03.786823Z"}}