CVE-2021-43783

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

1.21% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 66.1% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Analyzed. 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

2021-11-29 19:20Z4 YR AGO

Last updated

2024-08-04 04:03Z2 YR AGO

Reserved

2021-11-16

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

High (CVSS 8.5)

CNA CVSS vector

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

Weaknesses

• CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')Base

Data version

5.1

Document digest

611b5a70a8294263f371021b78bc001deea46c2817173b6777864be2b72c5757

• github.comhttps://github.com/backstage/backstage/security/advisories/GHSA-mg3m-f475-28hvx_refsource_CONFIRM
• github.comhttps://github.com/backstage/backstage/commit/f9352ab606367cd9efc6ff048915c70ed3013b7fx_refsource_MISC