What is CVE-2026-48834?

CVE-2026-48834 is a high-severity vulnerability in Apache Answer, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2026-08-05.

How severe is CVE-2026-48834?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Apache Answer

CVE-2026-48834

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.

Vulnerability class: DoS (Denial of Service)

EPSS: 0.005 (41.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Apache Answer
Apache Software Foundation Answer — versions 0

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

security@apache.org (vendor-advisory, Mailing List, Vendor Advisory)
af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2026-48834?: CVE-2026-48834 is a high-severity vulnerability in Apache Answer, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2026-08-05.
How severe is CVE-2026-48834?: High severity. CVSS v3 base score is 7.5 out of 10.