{"id":"CVE-2020-7711","aliases":["CVE-2020-7731","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-2020-7711","summary":"Duplicate Advisory: gosaml2 is vulnerable to NULL Pointer Dereference from malformed XML signatures","details":"## Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-prjq-f4q3-fvfr. This link is maintained to preserve external references.\n\n## Original Description\nThis affects all versions less than 0.7.0 of package github.com/russellhaering/gosaml2. There is a crash on null pointer dereference caused by sending malformed XML signatures.","published":"2020-08-23T14:15:09.573Z","modified":"2026-07-08T06:49:53.037130195Z","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":1,"affectedPackages":[{"ecosystem":"Go","name":"github.com/russellhaering/gosaml2","fixedVersion":"0.7.0"},{"ecosystem":"Go","name":"github.com/russellhaering/goxmldsig","fixedVersion":"1.1.1"}],"fix":{"url":"https://github.com/russellhaering/gosaml2/pull/90","label":"russellhaering/gosaml2#90"},"references":[{"type":"ADVISORY","url":"https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMRUSSELLHAERINGGOXMLDSIG-608301"},{"type":"EVIDENCE","url":"https://github.com/russellhaering/goxmldsig/issues/48"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-7731"},{"type":"WEB","url":"https://github.com/russellhaering/gosaml2/issues/59"},{"type":"WEB","url":"https://github.com/russellhaering/gosaml2/pull/90"},{"type":"WEB","url":"https://github.com/russellhaering/gosaml2/commit/66e3b7affd622b8b24ea1e18845f045e46b23424"},{"type":"PACKAGE","url":"https://github.com/russellhaering/gosaml2"},{"type":"WEB","url":"https://github.com/russellhaering/gosaml2/releases/tag/v0.7.0"},{"type":"WEB","url":"https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMRUSSELLHAERINGGOSAML2-608302"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T06:49:53.037130195Z"}}