CVE-2026-48834: CWE-400 Uncontrolled Resource Consumption in Apache Software Foundation Apache Answer
CVE-2026-48834 is a high-severity vulnerability in Apache Answer up to version 2.0.1. It involves improper handling of length parameter inconsistencies, allowing unauthenticated attackers to cause a denial of service by sending a specially crafted Accept-Language header that triggers excessive CPU consumption during parsing. The issue is fixed in version 2.0.2.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-48834) in Apache Answer (up to 2.0.1) is classified as CWE-400 (Uncontrolled Resource Consumption). It arises from improper handling of length parameter inconsistencies in the Accept-Language header parsing logic. An unauthenticated attacker can exploit this by sending a specially crafted header that causes excessive CPU usage, resulting in denial of service. The vendor has addressed this issue in Apache Answer version 2.0.2.
Potential Impact
The vulnerability allows unauthenticated attackers to cause a denial of service by exhausting CPU resources through crafted Accept-Language headers. There is no impact on confidentiality or integrity, but availability is severely affected.
Mitigation Recommendations
Users should upgrade Apache Answer to version 2.0.2 or later, where this vulnerability is fixed. No other mitigation or temporary workaround is indicated.
CVE-2026-48834: CWE-400 Uncontrolled Resource Consumption in Apache Software Foundation Apache Answer
Description
CVE-2026-48834 is a high-severity vulnerability in Apache Answer up to version 2.0.1. It involves improper handling of length parameter inconsistencies, allowing unauthenticated attackers to cause a denial of service by sending a specially crafted Accept-Language header that triggers excessive CPU consumption during parsing. The issue is fixed in version 2.0.2.
CVSS v3.1
Score 7.5high
Affected software
Apache Software Foundation
Apache Answer
Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-48834) in Apache Answer (up to 2.0.1) is classified as CWE-400 (Uncontrolled Resource Consumption). It arises from improper handling of length parameter inconsistencies in the Accept-Language header parsing logic. An unauthenticated attacker can exploit this by sending a specially crafted header that causes excessive CPU usage, resulting in denial of service. The vendor has addressed this issue in Apache Answer version 2.0.2.
Potential Impact
The vulnerability allows unauthenticated attackers to cause a denial of service by exhausting CPU resources through crafted Accept-Language headers. There is no impact on confidentiality or integrity, but availability is severely affected.
Mitigation Recommendations
Users should upgrade Apache Answer to version 2.0.2 or later, where this vulnerability is fixed. No other mitigation or temporary workaround is indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-05-25T11:13:04.242Z
- State
- PUBLISHED
Threat ID: 6a736b64bf8831d5392da64d
Added to database: 08/05/2026, 16:57:08 UTC
Last enriched: 08/13/2026, 17:29:36 UTC
Last updated: 09/18/2026, 22:01:35 UTC
Views: 79
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.