Medium severity · published Jun 9, 2026
CVE-2026-34905
Apache Answer: Unlisted Questions Accessible via Direct API Access
6.5
CVSS
0.3%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 24% 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-2026-34905
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-34905
Mailing List
https://lists.apache.org/thread/khxoft96sptr2kh0cpzgw7f6qwv0ltcf
Issue Tracking
http://www.openwall.com/lists/oss-security/2026/06/09/2
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