Insufficient verification of data authenticity in Apache Answer - CVE-2026-48911
Published: August 24, 2026
Vulnerability identifier: #VU144921
CSH Severity: High
CVSS v4: 8.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-48911
CWE-ID: CWE-345
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to take over arbitrary user accounts.
The vulnerability exists due to insufficient verification of data authenticity in the external-login email binding flow when processing crafted confirmation links. A remote attacker can trick a victim into clicking a crafted confirmation link to take over arbitrary user accounts.
User interaction is required to click the crafted confirmation link.
Affected software
Apache Answer
How to mitigate CVE-2026-48911
Install security update from vendor's website.
Apache Answer - update to 2.0.2