CVE-2026-48911CWE-306

CVE-2026-48911

High · published August 5, 2026

CVSS v3.1
7.5
EPSS
1%
Percentile
46.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00575 · 46.7th percentile
Weakness
CWE-306 · Missing Authentication for Critical Function
Published
2026-08-05T20:16Z
Affected products (1)
ProductVersionsFixed in
apache/answer< 2.0.22.0.2
References (2)
https://lists.apache.org/thread/mrlwtdnhqqgfbchjgq6rffkz67o8wyv8 · [email protected]http://www.openwall.com/lists/oss-security/2026/08/05/10 · af854a3a-2127-422b-91ae-364da2661108
EPSS history
Timeline
  • 05 AUG 15:09Z
    Apache Answer: Unauthenticated OAuth Email-Binding Account Takeover via Existing User Confirmation Flow
    cvelistv5