CVE-2021-29991
CVE Information
CVE ID
CVE-2021-29991
Severity
HIGH
CVSS 8.1
Publish Date
2021-11-03
Description
Firefox incorrectly accepted a newline in a HTTP/3 header, interpretting it as two separate headers. This allowed for a header splitting attack against servers using HTTP/3. This vulnerability affects Firefox < 91.0.1 and Thunderbird < 91.0.1.
Collection Date
2026-01-13
Impact Summary
Affected Hosts
1
Related Incidents
0
Related Alerts
0
Affected Hosts (1)
| Hostname | OS Type | Severity | Total CVEs |
|---|---|---|---|
| inbridge-ubt-24 | LINUX | CRITICAL | 2364 |