01 Record

CVE-2026-73256

Mongoose: HTTP/1.0 detection off-by-one enables request smuggling via chunked TE

CriticalPUBLISHEDCNA: GitHub_M

Base score9.1 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

02 Description

Mongoose: HTTP/1.0 detection off-by-one enables request smuggling via chunked TE

Published

2026-08-20 17:37Z1 DAY AGO

Last updated

2026-08-21 21:46Z3 HR AGO

Reserved

2026-08-11

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Critical (CVSS 9.1)

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Weaknesses

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

SSVC decision

ExploitationnoneAutomatableyesTechnical Impacttotal

Data version

5.2

Document digest

3369e2052f91724c2c4195a1ea5f6cade01d9b1c88cb8151b1983345667a7f25

VendorProductVersionsPlatforms

cesantamongoose< 7.22—