High severity · published Oct 19, 2026
CVE-2026-64943
Apache Answer: API keys logged in plaintext during authentication
8.1
CVSS
0.3%
EPSS
No
On KEV
Description
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 vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
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 2.0.2 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-64943
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-64943
lists.apache.org
https://lists.apache.org/thread/gczojx5ypncn1x1pg9z1cphb54t23zzg
www.openwall.com
http://www.openwall.com/lists/oss-security/2026/10/16/22
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