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Vulnerability record · CVE-2026-48911 · published 5 August 2026

CVE-2026-48911: Apache answer missing authentication for critical function vulnerability

Apache · Answer

Insufficient Verification of Data Authenticity vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.1. A missing authorization check in the external-login email binding flow allows unauthenticated attackers to take over arbitrary user accounts by tricking victims into clicking a crafted confirmation link. Users are recommended to upgrade to version 2.0.2, which fixes the issue.

7.5 CVSS 3.1 High EPSS 0.58% · top 54.8% CWE-306 · Missing authentication for critical function
7.5CVSS 3.1 base score
0.58%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
6 Aug 2026Last modified by NVD

Description

Insufficient Verification of Data Authenticity vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.1. A missing authorization check in the external-login email binding flow allows unauthenticated attackers to take over arbitrary user accounts by tricking victims into clicking a crafted confirmation link. Users are recommended to upgrade to version 2.0.2, which fixes the issue.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://lists.apache.org/thread/mrlwtdnhqqgfbchjgq6rffkz67o8wyv8 Mailing ListVendor Advisory
http://www.openwall.com/lists/oss-security/2026/08/05/10 Mailing ListThird Party Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-48911), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.