CVE-2026-64943: Apache Answer: API keys logged in plaintext during authentication

Severity: high (CVSS 8.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-19 · updated 2026-10-20
Weakness: CWE-532

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.

Affected products

Apache Software Foundation Apache Answer: through 2.0.2

References

https://lists.apache.org/thread/gczojx5ypncn1x1pg9z1cphb54t23zzg
http://www.openwall.com/lists/oss-security/2026/10/16/22

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