{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "2.7.9"
              },
              {
                "introduced": "0"
              },
              {
                "last_affected": "2.8.0-beta1"
              },
              {
                "introduced": "0"
              },
              {
                "last_affected": "2.8.0-beta2"
              },
              {
                "introduced": "0"
              },
              {
                "last_affected": "2.8.0-beta3"
              },
              {
                "introduced": "0"
              },
              {
                "last_affected": "2.8.0-beta4"
              },
              {
                "introduced": "0"
              },
              {
                "last_affected": "2.8.0-beta5"
              },
              {
                "introduced": "0"
              },
              {
                "last_affected": "2.8.0-beta6"
              },
              {
                "introduced": "0"
              },
              {
                "last_affected": "2.8.0-beta7"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "a1dcf3a50cdc69a33e7174eb23e2415fc32de79f"
            },
            {
              "introduced": "0"
            },
            {
              "last_affected": "05c1d3c9cdd7f3e365bedc397dd92a7e7bc2c40f"
            },
            {
              "introduced": "0"
            },
            {
              "last_affected": "41038d6cdb289962b13778b0a00152b439d4a940"
            },
            {
              "introduced": "0"
            },
            {
              "last_affected": "5f8fa976d45c9e00a2a289cc18593e1af110783e"
            },
            {
              "introduced": "0"
            },
            {
              "last_affected": "cb858af8c79032a90bc374d566225c75e22cf6a6"
            },
            {
              "introduced": "0"
            },
            {
              "last_affected": "c6f1818b85a8b7883adff0fdb5ada2fbe87cfe04"
            },
            {
              "introduced": "0"
            },
            {
              "last_affected": "f0d2b0f2f08fc201031c85e1669dbd82dcd9b543"
            },
            {
              "introduced": "0"
            },
            {
              "last_affected": "ae91818c194a79b9a5216f2a2709a331f3509207"
            },
            {
              "fixed": "2da0001965c6d8632d723c46ea5df9f22a1a23f1"
            }
          ],
          "repo": "https://github.com/discourse/discourse",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "Discourse is a platform for community discussion. In affected versions a maliciously crafted request could cause an error response to be cached by intermediate proxies. This could cause a loss of confidentiality for some content. This issue is patched in the latest stable, beta and tests-passed versions of Discourse.",
  "id": "CVE-2021-41271",
  "modified": "2026-03-13T21:54:48.930604033Z",
  "published": "2021-11-15T22:15:06.977Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/discourse/discourse/security/advisories/GHSA-hf6r-mc9j-hf4p"
    },
    {
      "type": "FIX",
      "url": "https://github.com/discourse/discourse/commit/2da0001965c6d8632d723c46ea5df9f22a1a23f1"
    }
  ],
  "related": [
    "GHSA-hf6r-mc9j-hf4p"
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}