CVE-2026-27812
Received Received - Intake
Password Reset Poisoning in Sub2API Enables Account Takeover

Publication date: 2026-02-26

Last updated on: 2026-03-05

Assigner: GitHub, Inc.

Description
Sub2API is an AI API gateway platform designed to distribute and manage API quotas from AI product subscriptions. A vulnerability in versions prior to 0.1.85 is a Password Reset Poisoning (Host Header / Forwarded Header trust issue), which allows attackers to manipulate the password reset link. Attackers can exploit this flaw to inject their own domain into the password reset link, leading to the potential for account takeover. The vulnerability has been fixed in version v0.1.85. If upgrading is not immediately possible, users can mitigate the vulnerability by disabling the "forgot password" feature until an upgrade to a patched version can be performed. This will prevent attackers from exploiting the vulnerability via the affected endpoint.
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Meta Information
Published
2026-02-26
Last Modified
2026-03-05
Generated
2026-06-16
AI Q&A
2026-02-26
EPSS Evaluated
2026-06-15
NVD
CVE-2026-27812
EUVD
EUVD-2026-8782
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
sub2api sub2api to 0.1.85 (exc)
Helpful Resources
Exploitability
CWE
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KEV
KEV Icon
CWE ID Description
CWE-116 The product prepares a structured message for communication with another component, but encoding or escaping of the data is either missing or done incorrectly. As a result, the intended structure of the message is not preserved.
Attack-Flow Graph
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Executive Summary

[{'type': 'paragraph', 'content': 'CVE-2026-27812 is a vulnerability in the Sub2API platform versions prior to 0.1.85 that involves Password Reset Poisoning. This occurs because the system improperly trusts the Host or Forwarded HTTP headers, allowing attackers to manipulate the password reset link.'}, {'type': 'paragraph', 'content': 'By exploiting this flaw, an attacker can inject their own malicious domain into the password reset link, which can lead to account takeover.'}, {'type': 'paragraph', 'content': 'The issue has been fixed in version 0.1.85, and users are advised to upgrade. As a temporary mitigation, disabling the "forgot password" feature can prevent exploitation until the patch is applied.'}] [1]

Impact Analysis

This vulnerability can lead to account takeover by attackers who manipulate the password reset link to redirect users to a malicious domain.

An attacker exploiting this flaw could gain unauthorized access to user accounts, potentially compromising sensitive information or control over the affected accounts.

Compliance Impact

I don't know

Detection Guidance

I don't know

Mitigation Strategies

[{'type': 'paragraph', 'content': 'To mitigate the vulnerability in sub2api versions prior to 0.1.85, you should upgrade to version 0.1.85 or later where the issue has been fixed.'}, {'type': 'paragraph', 'content': 'If upgrading immediately is not possible, disable the "forgot password" feature to prevent attackers from exploiting the password reset endpoint.'}] [1]

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