7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
7.3 High
AI Score
Confidence
Low
0.0004 Low
EPSS
Percentile
9.1%
Gunicorn fails to properly validate Transfer-Encoding headers, leading to
HTTP Request Smuggling (HRS) vulnerabilities. By crafting requests with
conflicting Transfer-Encoding headers, attackers can bypass security
restrictions and access restricted endpoints. This issue is due to
Gunicorn’s handling of Transfer-Encoding headers, where it incorrectly
processes requests with multiple, conflicting Transfer-Encoding headers,
treating them as chunked regardless of the final encoding specified. This
vulnerability allows for a range of attacks including cache poisoning,
session manipulation, and data exposure.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 18.04 | noarch | gunicorn | < any | UNKNOWN |
ubuntu | 20.04 | noarch | gunicorn | < any | UNKNOWN |
ubuntu | 22.04 | noarch | gunicorn | < any | UNKNOWN |
ubuntu | 23.10 | noarch | gunicorn | < any | UNKNOWN |
ubuntu | 24.04 | noarch | gunicorn | < any | UNKNOWN |
ubuntu | 14.04 | noarch | gunicorn | < any | UNKNOWN |
ubuntu | 16.04 | noarch | gunicorn | < any | UNKNOWN |
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
7.3 High
AI Score
Confidence
Low
0.0004 Low
EPSS
Percentile
9.1%