CVE-2026-48834 json
Apache Answer: Denial of service via crafted Accept-Language header parsing
published 2026-08-05 3 mo ago modified 2026-10-23 16 d ago also EUVD-2026-53396
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 55%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- apache answer 2.0.2
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 3 mo ago
Exploit prediction
0.76% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected products
- Apache Software Foundation Apache Answer
Classification
- Weakness
-
- CWE-400 Uncontrolled Resource Consumption
References
-
lists.apache.org
/thread/0yg5smwnbrhqs55m5h61gn42mcs8s95p
vendor-advisory, mailing-list
-
openwall.com
/lists/oss-security/2026/08/05/9
mailing-list, third-party-advisory
Sources
- CVE List CVE-2026-48834
- NVD CVE-2026-48834
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.