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CVE-2026-79633

Apache Answer: Missing Authorization Allows Mutations of Non-Public Content

vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.2. Missing authorization checks allowed authenticated users to perform actions on non-public content they were not permitted to access. Users are recommended to upgrade to version 2.0.3, which fixes the issue.

CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed
CVE-2026-79624

Apache Answer: Stale Visit Tokens Retain Access to Private Uploads After Session Revocation

Insufficient session expiration vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.2. Insufficient session invalidation allowed revoked users to continue accessing known private uploaded files with a stale visit token. Users are recommended to upgrade to version 2.0.3, which fixes the issue.

CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed
CVE-2026-79620

Apache Answer: Improper Authorization Allows Disclosure of Non-Public Question Metadata

Exposure of sensitive information through data queries vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.2. An improper authorization check in the similar-question search allowed authenticated users to view metadata of non-public questions. Users are recommended to upgrade to version 2.0.3, which fixes the issue.

CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
CVE-2026-79613

Apache Answer: Disclosure of Comments on Non-Public Content Through Public Profiles

vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.2. Unauthenticated attackers could access comments associated with non-public content through public user profiles. Users are recommended to upgrade to version 2.0.3, which fixes the issue.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
CVE-2026-76994

Apache Answer: Exposure of Hidden Question Metadata Through Public Answer Profiles

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.2. Unauthenticated attackers could obtain metadata associated with hidden questions through public answer profiles. Users are recommended to upgrade to version 2.0.3, which fixes the issue.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
CVE-2026-64945

Apache Answer: Incorrect permission mapping allows users with only the unpin permission to hide/show questions

A vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.2. The question operation controller gates hide/show operations on the wrong permission check result (the unpin permission instead of the hide permission), so in custom role configurations that separate these permissions, a user granted only question.unpin can hide or restore questions without holding question.hide or question.show. Users are recommended to upgrade to version 2.0.3, which fixes the issue.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
CVE-2026-64944

Apache Answer: Stored XSS via unsanitized HTML in imported question content

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.2. The importer stores imported question bodies as raw HTML without passing them through the normal Markdown-to-HTML sanitization path, so attacker-controlled HTML embedded in an imported data source is persisted and rendered to all viewers (including privileged users) as stored XSS. Users are recommended to upgrade to version 2.0.3, which fixes the issue.

CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed
CVE-2026-68482

Apache Answer: Improper Authorization in Question Invite User Lookup

Missing Authorization vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.2. An unauthenticated or unauthorized user can retrieve the invited-user list associated with a non-public question due to missing visibility authorization checks. Users are recommended to upgrade to version 2.0.3, which fixes the issue.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
CVE-2026-86589

Apache Answer: User Center integration does not revoke first-login sessions after central account suspension

Incorrect implementation of authentication algorithm vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.2. A flaw in the User Center login integration can cause a newly created external user session to omit its external identity, allowing subsequent requests to bypass central account suspension or deletion checks until the session expires or is revoked. Users are recommended to upgrade to version 2.0.3, which fixes the issue.

CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed
CVE-2026-67249

Apache Answer: Email Code Purpose Confusion May Allow Account Takeover

A vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.2. A verification code issued for one email-based workflow could be accepted by another sensitive workflow because the code purpose was not properly enforced. Users are recommended to upgrade to version 2.0.3, which fixes the issue.

CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed
CVE-2026-60053

Apache Answer: Residual Administrative API Key Access After Role or Account Revocation

Insufficient Session Expiration vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.1. Administrative API keys remained usable after the owning administrator was demoted or the account was marked inactive, suspended, or deleted, allowing continued access until the keys were explicitly removed. Users are recommended to upgrade to version 2.0.2, which fixes the issue.

CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed
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CVE-2026-71563

Apache Answer: MCP Answer Retrieval Exposes Content from Non-Public Questions

Missing Authorization vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.2. An authorization flaw in the MCP answer retrieval tool allows holders of a global API key to access answer content associated with hidden, deleted, or pending-review questions. Users are recommended to upgrade to version 2.0.3, which fixes the issue.

CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
CVE-2026-64943

Apache Answer: API keys logged in plaintext during authentication

Insertion of Sensitive Information into Log File vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.2. Full API keys are written to application logs on every authenticated request, allowing anyone with log-read access to recover and replay active bearer credentials. Users are recommended to upgrade to version 2.0.3, which fixes the issue.

CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed
CVE-2026-90910

Apache Answer: Reaction API authorization bypass for restricted content

Missing authentication for critical function vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.2. The reaction API did not enforce content visibility controls, allowing unauthorized users to read reaction metadata from restricted content or add and remove their own reactions. Users are recommended to upgrade to version 2.0.3, which fixes the issue.

CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed
CVE-2026-60023

Apache Answer: Unauthorized disclosure of deleted or pending answer content

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.1. Deleted or pending answers could be retrieved by unauthorized users through the single-answer read path when the parent question remained visible, exposing answer content that should not have been accessible. Users are recommended to upgrade to version 2.0.2, which fixes the issue.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
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CVE-2026-50749

Apache Answer: Missing authorization in revision audit reject allows authenticated users to reject pending revisions

Improper Authorization vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.1. Any authenticated user can reject arbitrary pending edit-revisions without review permission due to a missing authorization check on the reject operation. Users are recommended to upgrade to version 2.0.2, which fixes the issue.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
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CVE-2026-48912

Apache Answer: Improper authorization in avatar update cleanup allows authenticated users to delete arbitrary uploaded files by URL

Improper Input Validation vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.1. A missing ownership check in the avatar-cleanup logic allows any authenticated user to delete other users' uploaded files by supplying their file URLs. Users are recommended to upgrade to version 2.0.2, which fixes the issue.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
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CVE-2026-48911

Apache Answer: Unauthenticated OAuth Email-Binding Account Takeover via Existing User Confirmation Flow

Insufficient Verification of Data Authenticity vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.1. A missing authorization check in the external-login email binding flow allows unauthenticated attackers to take over arbitrary user accounts by tricking victims into clicking a crafted confirmation link. Users are recommended to upgrade to version 2.0.2, which fixes the issue.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
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CVE-2026-48834

Apache Answer: Denial of service via crafted Accept-Language header parsing

Improper Handling of Length Parameter Inconsistency vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.1. Unauthenticated attackers can cause a denial of service via a specially crafted Accept-Language header that triggers excessive CPU consumption during parsing. Users are recommended to upgrade to version 2.0.2, which fixes the issue.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
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CVE-2026-25700

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.

CVSS 3.1 · 7.2 High EPSS < 1% KEV · Not listed
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