CVE-2020-11077

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

2.87% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 86.4% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2020-05-22 14:55Z6 YR AGO

Last updated

2024-08-04 11:21Z2 YR AGO

Reserved

2020-03-30

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Medium (CVSS 6.8)

CNA CVSS vector

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

Weaknesses

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

Data version

5.1

Document digest

02e4a2fa13fe90f17d0ddb4635dff2137fbc0ceaf8541ee1a7f733a76f91e9ec

• github.comhttps://github.com/puma/puma/blob/master/History.md#434435-and-31253126--2020-05-22x_refsource_MISC
• github.comhttps://github.com/puma/puma/security/advisories/GHSA-w64w-qqph-5gxmx_refsource_CONFIRM
• lists.opensuse.orgopenSUSE-SU-2020:0990http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00034.htmlvendor-advisoryx_refsource_SUSE
• lists.opensuse.orgopenSUSE-SU-2020:1001http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00038.htmlvendor-advisoryx_refsource_SUSE
• lists.fedoraproject.orgFEDORA-2020-fe354f24e8https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SKIY5H67GJIGJL6SMFWFLUQQQR3EMVPR/vendor-advisoryx_refsource_FEDORA
• lists.debian.org[debian-lts-announce] 20201007 [SECURITY] [DLA 2398-1] puma security updatehttps://lists.debian.org/debian-lts-announce/2020/10/msg00009.htmlmailing-listx_refsource_MLIST