module: github.com/gin-gonic/gin
versions:
  - fixed: v1.6.0
description: |
  The default [`Formatter`][LoggerConfig.Formatter] for the [`Logger`][] middleware
  (included in the [`Default`][] engine) allows attackers to inject arbitrary log
  entries by manipulating the request path.
published: 2021-04-14T12:00:00Z
credit: "@thinkerou <thinkerou@gmail.com>"
symbols:
  - defaultLogFormatter
links:
  pr: https://github.com/gin-gonic/gin/pull/2237
  commit: https://github.com/gin-gonic/gin/commit/a71af9c144f9579f6dbe945341c1df37aaf09c0d
cve_metadata:
  id: CVE-9999-0001
  cwe: "CWE-20: Improper Input Validation"
  description: |
    Unsanitized input in the default logger in github.com/gin-gonic/gin before v1.6.0
    allows remote attackers to inject arbitary log lines.