CVE-2026-48834: Apache Answer: Denial of service via crafted Accept-Language header parsing

[Enxin Xie <linkinstar () apache org>]

Severity: moderate 

Affected versions:

- Apache Answer through 2.0.1

Description:

Improper Handling of Length Parameter Inconsistency vulnerability in Apache Answer.

This issue affects Apache Answer: through 2.0.1.

Unauthenticated attackers can cause a denial of service via a specially crafted Accept-Language header that triggers 
excessive CPU consumption during parsing.
Users are recommended to upgrade to version 2.0.2, which fixes the issue.

Credit:

tonghuaroot (reporter)

References:

https://answer.apache.org
https://www.cve.org/CVERecord?id=CVE-2026-48834