OpsTree BuildPiper before 2.7.0 lacks rate limiting on password-reset OTP verification, allowing unauthenticated attackers to brute force 6-digit OTPs. Attackers can initiate a reset and submit unthrottled guesses to the check_otp endpoint, resetting the target's password and taking over the account.

Attack Vector Network

Attack Complexity High

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
OpsTree Solutions BuildPiper unaffected
Version Status Constraints
0 affected < 2.7.0

No data.

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Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://gist.github.com/neelkotnis/c3c9d02c324a73937ca4db81f223435e cve-icon cve-icon
https://www.buildpiper.io/ cve-icon cve-icon
https://www.vulncheck.com/advisories/opstree-buildpiper-before-2.7.0-otp-brute-force-via-password-reset-check-otp cve-icon cve-icon
History

Fri, 13 Nov 2026 09:45:00 +0000

Type Values Removed Values Added
Description OpsTree BuildPiper before 2.7.0 lacks rate limiting on password-reset OTP verification, allowing unauthenticated attackers to brute force 6-digit OTPs. Attackers can initiate a reset and submit unthrottled guesses to the check_otp endpoint, resetting the target's password and taking over the account.
Title OpsTree BuildPiper before 2.7.0 OTP Brute Force via password_reset/check_otp
Weaknesses CWE-307
References
Metrics cvssV3_1

{'score': 7.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N'}

cvssV4_0

{'score': 9.1, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-11-13T09:34:22.100Z

Reserved: 2026-11-12T14:12:09.595Z

Link: CVE-2026-127079

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-13T10:18:04.113

Modified: 2026-11-13T10:18:04.113

Link: CVE-2026-127079

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses