CVE-2026-64943High· 8.1▾ Twilight

Apache Answer: API keys logged in plaintext during authentication

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-…

▾ Twilight zone — High severity, or a signal on a lesser flaw

Depth score45/ 100 · Moderate

impact 44.6 · likelihood 0.1 · exploitation 0

⚡ Agent-ready:Raw markdown ↗JSON ↗

Proof of concept

Need a working PoC? Pro members can cast a request and our team develops one — it lands right here.

…

Published

Oct 19, 2026

Updated

Oct 20, 2026

CVSS

8.1

Vendor

Apache Software Foundation

Product

Apache Answer

CWE

CWE-532

Depth score

45 · Moderate

EPSS

0.32% · p24

Platforms

—

Source

CVEORG

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

CISA SSVC

decided 2026-10-20

Exploitation: none
Automatable: no
Technical impact: total

Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the CISA ADP record, not NVD.

EPSS history

Exploit-prediction probability, daily snapshots since Oct 20.

0.2% → 0.3%▲ 0.1%

Timeline

Disclosure to exploitation, from the record and what we observed since indexing it.

6 events · 3 days

Oct 19, 2026Published
Disclosed via CVEORG
Oct 20, 2026Record revised
Last analysed / modified upstream
Oct 20, 2026EPSS first tracked
0.2%
Oct 20, 2026CVSS changed
— → 8.1
Oct 20, 2026Severity changed
none → high
Oct 22, 2026EPSS peak
0.2% → 0.4%

Apache Software Foundation CWE-532 #cve.org

Affected

apache_answer <= 2.0.2

Full technical detail▾

Overview

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

apache_answer <= 2.0.2

Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

References

https://lists.apache.org/thread/gczojx5ypncn1x1pg9z1cphb54t23zzg

Change history

Field changes observed since this record was first indexed.

Oct 20, 2026CVSS — → 8.1
Oct 20, 2026Severity none → high

Related vulnerabilities

Connected by shared product, vendor, weakness, or advisory.

#cve.org

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CVE-2026-64943High· 8.1▾ Twilight

Apache Answer: API keys logged in plaintext during authentication

▾ Twilight zone — High severity, or a signal on a lesser flaw

Depth score45/ 100 · Moderate

impact 44.6 · likelihood 0.1 · exploitation 0

⚡ Agent-ready:Raw markdown ↗JSON ↗

Proof of concept

Need a working PoC? Pro members can cast a request and our team develops one — it lands right here.

…

Published

Oct 19, 2026

Updated

Oct 20, 2026

CVSS

8.1

Vendor

Apache Software Foundation

Product

Apache Answer

CWE

CWE-532

Depth score

45 · Moderate

EPSS

0.32% · p24

Platforms

—

Source

CVEORG

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

CISA SSVC

decided 2026-10-20

Exploitation: none
Automatable: no
Technical impact: total

EPSS history

Exploit-prediction probability, daily snapshots since Oct 20.

0.2% → 0.3%▲ 0.1%

Timeline

Disclosure to exploitation, from the record and what we observed since indexing it.

6 events · 3 days

Oct 19, 2026Published
Disclosed via CVEORG
Oct 20, 2026Record revised
Last analysed / modified upstream
Oct 20, 2026EPSS first tracked
0.2%
Oct 20, 2026CVSS changed
— → 8.1
Oct 20, 2026Severity changed
none → high
Oct 22, 2026EPSS peak
0.2% → 0.4%

Apache Software Foundation CWE-532 #cve.org

Affected

apache_answer <= 2.0.2

Full technical detail▾

Overview

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

apache_answer <= 2.0.2

Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

References

https://lists.apache.org/thread/gczojx5ypncn1x1pg9z1cphb54t23zzg

Change history

Field changes observed since this record was first indexed.

Oct 20, 2026CVSS — → 8.1
Oct 20, 2026Severity none → high

Related vulnerabilities

Connected by shared product, vendor, weakness, or advisory.

#cve.org