Medium severity · published Jun 9, 2026
CVE-2026-25688
Apache Answer: XSS in AI Answer Rendering
6.1
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 35% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AA
Apache Answer · Apache Software Foundation
through 2.0.0 · source: vendor
AN
Answer · Apache
before 2.0.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-25688
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-25688
Mailing List
https://lists.apache.org/thread/x42joj43rqb38ms5q60f7bgq3qbo7t5q
Mailing List
http://www.openwall.com/lists/oss-security/2026/06/09/7
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