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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Fixes

Solution

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Workaround

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History

Fri, 18 Sep 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 15 Sep 2026 13:15:00 +0000

Type Values Removed Values Added
First Time appeared Pig-mesh
Pig-mesh pig
Vendors & Products Pig-mesh
Pig-mesh pig

Tue, 15 Sep 2026 11:45:00 +0000

Type Values Removed Values Added
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.
Title pig before 4.1.0 Unverified Password Change via /register/password
Weaknesses CWE-620
References
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N'}

cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-24T14:22:34.732Z

Reserved: 2026-09-15T11:11:13.312Z

Link: CVE-2026-91995

cve-icon Vulnrichment

Updated: 2026-09-18T17:16:54.172Z

cve-icon NVD

Status : Deferred

Published: 2026-09-15T12:17:54.943

Modified: 2026-09-24T21:08:55.030

Link: CVE-2026-91995

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-17T20:15:13Z

Weaknesses