VulnerabilityModified
CVE-2021-22959
The parser in accepts requests with a space (SP) right after the header name before the colon.
MEDIUM 6.5EPSS 3.16%
Does this matter?
Lower severity and a low EPSS score (3.16%). Track it; it rarely justifies an emergency change on its own.
Description
The parser in accepts requests with a space (SP) right after the header name before the colon. This can lead to HTTP Request Smuggling (HRS) in llhttp < v2.1.4 and < v6.0.6.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- EPSS
- 3.16% probability · 87th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-444
- Affected
- llhttp/llhttp · oracle/graalvm · debian/debian linux
- Source
- support@hackerone.com
References
- https://hackerone.com/reports/1238709Exploit, Issue Tracking, Third Party Advisory
- https://www.debian.org/security/2022/dsa-5170Mailing List, Third Party Advisory
- https://www.oracle.com/security-alerts/cpujan2022.htmlPatch, Third Party Advisory
- https://hackerone.com/reports/1238709Exploit, Issue Tracking, Third Party Advisory
- https://www.debian.org/security/2022/dsa-5170Mailing List, Third Party Advisory
- https://www.oracle.com/security-alerts/cpujan2022.htmlPatch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.