Critical severity9.1NVD Advisory· Published Sep 15, 2026
CVE-2026-91995
CVE-2026-91995
Description
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.
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Affected products
1Patches
Vulnerability mechanics
References
6- github.com/geo-chen/oss/blob/main/pig.mdnvd
- github.com/pig-mesh/pig/blob/v4.0.0/pig-upms/pig-upms-biz/src/main/java/com/pig4cloud/pig/admin/controller/SysRegisterController.javanvd
- github.com/pig-mesh/pig/blob/v4.0.0/pig-upms/pig-upms-biz/src/main/java/com/pig4cloud/pig/admin/service/impl/SysUserServiceImpl.javanvd
- github.com/pig-mesh/pig/commit/ce958668f399110b97b3f1fcc5f517ff9bcfd535nvd
- github.com/pig-mesh/pig/issues/1249nvd
- www.vulncheck.com/advisories/pig-before-4.1.0-unverified-password-change-via-register-passwordnvd
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