{"id":"CVE-2026-91995","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-91995","summary":"pig before 4.1.0 contains an authentication bypass vulnerability in the /register/password endpoint where password verification results are discarded, allowing any value as the current…","details":"pig before 4.1.0 contains an authentication bypass vulnerability in the /register/password endpoint where password verification results are discarded, allowing any value as the current password. Remote attackers can submit a username with an incorrect current password to overwrite any account credential including the admin account and gain full administrative control.","published":"2026-09-15T12:17:54.943","modified":"2026-09-15T12:17:54.943","cvss":{"score":9.1,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":{"url":"https://github.com/pig-mesh/pig/commit/ce958668f399110b97b3f1fcc5f517ff9bcfd535","label":"pig-mesh/pig@ce95866"},"references":[{"type":"WEB","url":"https://github.com/geo-chen/oss/blob/main/pig.md"},{"type":"WEB","url":"https://github.com/pig-mesh/pig"},{"type":"WEB","url":"https://github.com/pig-mesh/pig/blob/v4.0.0/pig-upms/pig-upms-biz/src/main/java/com/pig4cloud/pig/admin/controller/SysRegisterController.java#L21-L53"},{"type":"WEB","url":"https://github.com/pig-mesh/pig/blob/v4.0.0/pig-upms/pig-upms-biz/src/main/java/com/pig4cloud/pig/admin/service/impl/SysUserServiceImpl.java#L650-L669"},{"type":"WEB","url":"https://github.com/pig-mesh/pig/commit/ce958668f399110b97b3f1fcc5f517ff9bcfd535"},{"type":"WEB","url":"https://github.com/pig-mesh/pig/issues/1249"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/pig-before-4.1.0-unverified-password-change-via-register-password"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-09-15T12:17:54.943"}}