CVE-2021-21411

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

0.99% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 59.9% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

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

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

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

2021-03-26 20:55Z5 YR AGO

Last updated

2024-08-03 18:09Z2 YR AGO

Reserved

2020-12-22

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Medium (CVSS 5.5)

CNA CVSS vector

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

Weaknesses

• CWE-863Incorrect AuthorizationClass

Data version

5.1

Document digest

862e6c2b809f41817a2ed5eecf4593926dcb87aa56887669eab7e42ac6a179bc

• pkg.go.devhttps://pkg.go.dev/github.com/oauth2-proxy/oauth2-proxy/v7x_refsource_MISC
• github.comhttps://github.com/oauth2-proxy/oauth2-proxy/security/advisories/GHSA-652x-m2gr-hppmx_refsource_CONFIRM
• github.comhttps://github.com/oauth2-proxy/oauth2-proxy/commit/0279fa7dff1752f1710707dbd1ffac839de8bbfcx_refsource_MISC
• docs.gitlab.comhttps://docs.gitlab.com/ee/user/group/x_refsource_MISC
• github.comhttps://github.com/oauth2-proxy/oauth2-proxy/releases/tag/v7.1.0x_refsource_MISC