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High

Security advisory

Type: advisorySources: OSVCVE: CVE-2020-35733

An issue was discovered in Erlang/OTP before 23.2.2. The ssl application 10.2 accepts and trusts an invalid X.509 certificate chain to a trusted root Certification Authority.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2020-35733
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 11:26 UTC · Revision 1

Source evidence

CVE-2020-35733

core-osv · Original source

Published 15 Jan 2021, 14:15 UTC

An issue was discovered in Erlang/OTP before 23.2.2. The ssl application 10.2 accepts and trusts an invalid X.509 certificate chain to a trusted root Certification Authority.

osv:CVE-2020-35733
Complete source record
{
  "id": "cdc7c673f67f5d3a6bf305db9bd56162994f36a819fa88cbee236f6b79f86aea",
  "url": "https://osv.dev/vulnerability/CVE-2020-35733",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-35733",
    "summary": "An issue was discovered in Erlang/OTP before 23.2.2. The ssl application 10.2 accepts and trusts an invalid X.509 certificate chain to a trusted root Certification Authority.",
    "evidence": "osv:CVE-2020-35733",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2020-35733",
      "aliases": [
        "CVE-2020-35733"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/erlang/otp",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1a7dc7ad22b089a01b253432484983fd6e141103"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "23.2.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "OTP-23.0",
            "OTP-21.0",
            "OTP-23.2",
            "OTP-22.0",
            "OTP-23.2.1",
            "OTP-23.1",
            "OTP-23.0-rc3",
            "OTP-23.0-rc2",
            "OTP-23.0-rc1",
            "OTP-20.0",
            "OTP-22.0-rc3",
            "OTP-22.0-rc2",
            "OTP-22.0-rc1",
            "OTP-19.0",
            "OTP-21.0-rc2",
            "OTP-18.0",
            "OTP-21.0-rc1",
            "OTP-17.0",
            "OTP-20.0-rc2",
            "OTP-20.0-rc1",
            "OTP-19.0-rc2",
            "OTP-19.0-rc1",
            "OTP_R16B",
            "OTP-18.0-rc1",
            "OTP_17.0-rc2",
            "OTP_17.0-rc1",
            "OTP_R13B03",
            "OTP_R16A_RELEASE_CANDIDATE",
            "OTP_R14B03",
            "OTP_R15B",
            "OTP_R15A",
            "OTP_R14B02",
            "OTP_R14B01",
            "OTP_R14B",
            "OTP_R13B04",
            "OTP_R14A"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-35733.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:20.167998862Z",
      "provider": "osv",
      "references": [
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E4CXZWUOZELT7A5ZN6DJRQHX7L35V4PW/",
        "https://erlang.org/pipermail/erlang-questions/2021-January/100357.html",
        "https://github.com/erlang/otp/releases",
        "https://www.erlang.org/downloads",
        "https://www.erlang.org/news"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*"
            ],
            "vendor_product": "fedoraproject:fedora",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "33"
                  },
                  {
                    "last_affected": "33"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2020-35733",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 385072,
  "published_at": "2021-01-15T14:15:14.803+00:00"
}