Home/CVE/The parse function in llhttp < 2.1.4 and < 6.0.6. ignores chunk extensions when parsing the body of chunked requests. Th
CVE

CVE-2021-22960

The parse function in llhttp < 2.1.4 and < 6.0.6. ignores chunk extensions when parsing the body of chunked requests. Th

The parse function in llhttp < 2.1.4 and < 6.0.6. ignores chunk extensions when parsing the body of chunked requests. This leads to HTTP Request Smuggling (HRS) under certain conditions.

MEDIUM · CVSS 6.5 EPSS 0.00229
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-444Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
CWE-444Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
▤

Affected Products & Versions

4
llhttp< 2.1.4
llhttp>= 3.0.0 and < 6.0.6
oracle graalvmall versions
debian linuxall versions
⚠

Public Exploits & PoCs

1
pochackerone.com · 1238099hackerone.com
▣

Scoring & Timeline

6.5
MEDIUM · CVSS v3.1 · support@hackerone.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD03 Nov 2021 · 08:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
⚑

Vendor Advisories

21
suse-csafopenSUSE-SU-2024:11616-1
suse-csafopenSUSE-SU-2024:11637-1
suse-csafSUSE-SU-2022:2855-1
rhsaRHSA-2022:4914Moderate
suse-csafSUSE-SU-2022:0101-1
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://www.debian.org/security/2022/dsa-5170Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2022.htmlPatchThird Party Advisory
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