Apache Software Foundation Answer vulnerabilities

CVE-2026-25700 High · 7.2 CWE-1259 Jun 10, 2026

Apache Answer: AdminToken not invalidated after admin deactivation

Improper Restriction of Security Token Assignment vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.0. Previously issued administrative tokens were not invalidated after an administrator account was suspended, deleted, or deactivated, allowing continued access to administrative APIs until the token expired. Users are recommended to upgrade to version 2.0.1, which fixes the issue.

CVE-2026-34905 Medium · 6.5 CWE-200 Jun 9, 2026

Apache Answer: Unlisted Questions Accessible via Direct API Access

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.0. The unlisted question feature did not enforce access restrictions on direct API endpoints, allowing authenticated users to discover and access unlisted questions, their answers, comments, and revision history. Users are recommended to upgrade to version 2.0.1, which fixes the issue.

CVE-2026-34033 Medium · 5.4 CWE-79 Jun 9, 2026

Apache Answer: HTML Content Injection in Email

Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.0. User-supplied content was included in notification emails without proper escaping, allowing authenticated users to inject arbitrary HTML into emails sent to other users. Users are recommended to upgrade to version 2.0.1, which fixes the issue.

CVE-2026-34031 Medium · 6.5 CWE-434 Jun 9, 2026

Apache Answer: The custom avatar was not properly validated

Unrestricted Upload of File with Dangerous Type vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.0. The server did not sufficiently validate user-supplied image URLs, allowing arbitrary external content to be embedded as profile images, which could expose users to unintended external requests and tracking by third-party servers. Users are recommended to upgrade to version 2.0.1, which fixes the issue.

CVE-2026-33582 Medium · 6.5 CWE-434 Jun 9, 2026

Apache Answer: Uploading specially crafted TIFF files causes an Out-of-Memory error

Unrestricted Upload of File with Dangerous Type vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.0. A crafted TIFF image could trigger excessive memory allocation during image decoding, allowing an authenticated user to cause the server process to crash. Users are recommended to upgrade to version 2.0.1, which fixes the issue.

CVE-2026-25699 Medium · 6.1 CWE-359 Jun 9, 2026

Apache Answer: Authorization Bypass in Timeline API

Exposure of Private Personal Information to an Unauthorized Actor vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.0. Timeline-related APIs lacked proper authorization checks, allowing regular authenticated users to access deleted, private, or unapproved content and its revision history. Users are recommended to upgrade to version 2.0.1, which fixes the issue.

CVE-2026-25688 Medium · 6.1 CWE-87 Jun 9, 2026

Apache Answer: XSS in AI Answer Rendering

Improper Neutralization of Alternate XSS Syntax vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.0. AI-generated response content was rendered in the browser without proper sanitization, allowing malicious scripts to be executed when the content was viewed. Users are recommended to upgrade to version 2.0.1, which fixes the issue.

CVE-2026-24735 High · 7.5 CWE-359 Feb 4, 2026

Apache Answer: Revision API Improper Access Control leads to Information Disclosure

Exposure of Private Personal Information to an Unauthorized Actor vulnerability in Apache Answer. This issue affects Apache Answer: through 1.7.1. An unauthenticated API endpoint incorrectly exposes full revision history for deleted content. This allows unauthorized user to retrieve restricted or sensitive information. Users are recommended to upgrade to version 2.0.0, which fixes the issue.