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MEDIUM severity

CVE-2026-25688 — incubator-answer

MEDIUM

CVE-2026-25688 is a medium-severity (CVSS 6.1) CWE-87 vulnerability in github.com/apache/incubator-answer. A fix is available for github.com/apache/incubator-answer — see the affected versions and patch details below.

Apache Answer: XSS in AI Answer Rendering

Also known asGHSA-hmr2-99jm-8x45GO-2026-6147
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Oct 29, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2026-25688.

EPSS Exploitation Probability

via FIRST.org ↗
0.4%probability of exploitation in next 30 days
Lower Risk-0.17%
Lower risk than most CVEs35th percentile — riskier than 35% of all scored CVEsHighest risk
0.00%0.36%0.72%1.07%0.4%0.4%0.4%0.6%0.4%Jul 26Sep 26Oct 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
🐹github.com/apache/incubator-answer

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.

Description

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.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐹Gogithub.com/apache/incubator-answerall versions1.7.2-0.20260525024654-2746bf5b455fgo get github.com/apache/incubator-answer@v1.7.2-0.20260525024654-2746bf5b455f

Affected Products

1 product · 1 configurations
Application
answerapache
< 2.0.1
range

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/apache/incubator-answer, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update github.com/apache/incubator-answer to 1.7.2-0.20260525024654-2746bf5b455f or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-25688 is resolved across your whole dependency graph.

  3. Workarounds

    Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Frequently Asked Questions

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.
O3 Security · Impact-Aware SCA

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CVE-2026-25688: incubator-answer XSS — Fix Available