CVE-2026-91995 Details
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.
An authentication bypass vulnerability has been identified in Pig versions prior to 4.1.0, specifically within the '/register/password' endpoint. This vulnerability arises because the endpoint improperly handles password verification, allowing attackers to submit any value as the current password. As a result, remote attackers can overwrite account credentials, including those of the admin, and gain full administrative control.
Users can update to Pig version 4.1.0 or later, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 15, 2026CISA-ADP
Assessed Sep 18, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-620 | Unverified Password Change | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| pig-mesh pig | >= 0, < 4.1.0 |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 18, 2026 | CVE Modified | CISA-ADP |
| Sep 15, 2026 | New CVE Received | [email protected] |