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[email protected]CVE-2020-7695

HistoryJul 27, 2020 - 12:15 p.m.

CVE-2020-7695

2020-07-2712:15:11

CWE-74

[email protected]

web.nvd.nist.gov

uvicorn

cve-2020-7695

security vulnerability

http response splitting

nvd

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:L/Au:N/C:N/I:P/A:N

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

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

5.2 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

38.8%

JSON

Uvicorn before 0.11.7 is vulnerable to HTTP response splitting. CRLF sequences are not escaped in the value of HTTP headers. Attackers can exploit this to add arbitrary headers to HTTP responses, or even return an arbitrary response body, whenever crafted input is used to construct HTTP headers.

Affected configurations

NVD

Node

encodeuvicornRange<0.11.7

CPENameOperatorVersion
encode:uvicornencode uvicornlt0.11.7

CPE	Name	Operator	Version
encode:uvicorn	encode uvicorn	lt	0.11.7

CNA Affected

[
  {
    "product": "uvicorn",
    "vendor": "n/a",
    "versions": [
      {
        "lessThan": "unspecified",
        "status": "affected",
        "version": "0",
        "versionType": "custom"
      }
    ]
  }
]