{"id":"CVE-2020-7731","aliases":["CVE-2020-7711","GHSA-gq5r-cc4w-g8xf","GHSA-mqqv-chpx-vq25","GHSA-prjq-f4q3-fvfr","GO-2020-0046","SNYK-GOLANG-GITHUBCOMRUSSELLHAERINGGOSAML2-608302"],"url":"https://o3.security/vulnerability/CVE-2020-7731","summary":"Duplicate Advisory: gosaml2 is vulnerable to NULL Pointer Dereference from malformed XML signatures","details":"This affects all versions <0.7.0 of package github.com/russellhaering/gosaml2. There is a crash on nil-pointer dereference caused by sending malformed XML signatures.","published":"2021-04-30T16:15:07.547Z","modified":"2026-07-09T14:43:47.302049Z","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":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/russellhaering/gosaml2","fixedVersion":"0.7.0"},{"ecosystem":"Go","name":"github.com/russellhaering/goxmldsig","fixedVersion":"1.1.1"}],"fix":null,"references":[{"type":"WEB","url":"https://github.com/russellhaering/gosaml2/releases/tag/v0.7.0"},{"type":"ADVISORY","url":"https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMRUSSELLHAERINGGOSAML2-608302"},{"type":"FIX","url":"https://github.com/russellhaering/gosaml2/issues/59"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-09T14:43:47.302049Z"}}