{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-21619",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-02-27T19:08:49.652728Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-02-27T19:08:57.019Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://github.com",
          "cpes": [
            "cpe:2.3:a:hexpm:hex_core:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "modules": [
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          ],
          "packageName": "hexpm/hex_core",
          "packageURL": "pkg:github/hexpm/hex_core",
          "product": "hex_core",
          "programFiles": [
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          ],
          "programRoutines": [
            {
              "name": "hex_core:request/4"
            }
          ],
          "repo": "https://github.com/hexpm/hex_core",
          "vendor": "hexpm",
          "versions": [
            {
              "lessThan": "cdf726095bca85ad2549d146df1e831ae93c2b13",
              "status": "affected",
              "version": "eb327f8edfe45507351e38cc0805aa12fa647f0b",
              "versionType": "git"
            }
          ]
        },
        {
          "collectionURL": "https://repo.hex.pm",
          "cpes": [
            "cpe:2.3:a:hexpm:hex_core:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "modules": [
            "hex_api"
          ],
          "packageName": "hex_core",
          "packageURL": "pkg:hex/hex_core",
          "product": "hex_core",
          "programFiles": [
            "src/hex_api.erl"
          ],
          "programRoutines": [
            {
              "name": "hex_core:request/4"
            }
          ],
          "repo": "https://github.com/hexpm/hex_core",
          "vendor": "hexpm",
          "versions": [
            {
              "lessThan": "0.12.1",
              "status": "affected",
              "version": "0.1.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "collectionURL": "https://github.com",
          "cpes": [
            "cpe:2.3:a:hexpm:hex:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "modules": [
            "mix_hex_api"
          ],
          "packageName": "hexpm/hex",
          "packageURL": "pkg:github/hexpm/hex",
          "product": "hex",
          "programFiles": [
            "src/mix_hex_api.erl"
          ],
          "programRoutines": [
            {
              "name": "mix_hex_api:request/4"
            }
          ],
          "repo": "https://github.com/hexpm/hex",
          "vendor": "hexpm",
          "versions": [
            {
              "lessThan": "636739f3322514e9303ca335fb630696fcbb3c95",
              "status": "affected",
              "version": "314546ac432229518714cc8e3336e916b9da6305",
              "versionType": "git"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:a:hexpm:hex:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "modules": [
            "mix_hex_api"
          ],
          "packageName": "hex",
          "packageURL": "pkg:otp/hex?repository_url=https:%2F%2Fgithub.com%2Fhexpm%2Fhex.git\u0026vcs_url=git%2Bhttps:%2F%2Fgithub.com%2Fhexpm%2Fhex.git",
          "product": "hex",
          "programFiles": [
            "src/mix_hex_api.erl"
          ],
          "programRoutines": [
            {
              "name": "mix_hex_api:request/4"
            }
          ],
          "repo": "https://github.com/hexpm/hex",
          "vendor": "hexpm",
          "versions": [
            {
              "lessThan": "2.3.2",
              "status": "affected",
              "version": "2.3.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "collectionURL": "https://github.com",
          "cpes": [
            "cpe:2.3:a:erlang:rebar3:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "modules": [
            "r3_hex_api"
          ],
          "packageName": "erlang/rebar3",
          "packageURL": "pkg:github/erlang/rebar3",
          "product": "rebar3",
          "programFiles": [
            "apps/rebar/src/vendored/r3_hex_api.erl"
          ],
          "programRoutines": [
            {
              "name": "r3_hex_api:request/4"
            }
          ],
          "repo": "https://github.com/erlang/rebar3",
          "vendor": "erlang",
          "versions": [
            {
              "lessThan": "1d4478f527e373de0b225951e53115450e0d9b9d",
              "status": "affected",
              "version": "209c02ec57c2cc3207ee0174c3af3675b8dc8f79",
              "versionType": "git"
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          ]
        },
        {
          "collectionURL": "https://github.com",
          "cpes": [
            "cpe:2.3:a:erlang:rebar3:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "modules": [
            "r3_hex_api"
          ],
          "packageName": "rebar3",
          "packageURL": "pkg:otp/rebar3?repository_url=https:%2F%2Fgithub.com%2Ferlang%2Frebar3.git\u0026vcs_url=git%2Bhttps:%2F%2Fgithub.com%2Ferlang%2Frebar3.git",
          "product": "rebar3",
          "programFiles": [
            "apps/rebar/src/vendored/r3_hex_api.erl"
          ],
          "programRoutines": [
            {
              "name": "r3_hex_api:request/4"
            }
          ],
          "repo": "https://github.com/erlang/rebar3",
          "vendor": "erlang",
          "versions": [
            {
              "lessThan": "3.27.0",
              "status": "affected",
              "version": "3.9.1",
              "versionType": "semver"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:hexpm:hex_core:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "0.12.1",
                  "versionStartIncluding": "0.1.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "AND"
            },
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:hexpm:hex:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "2.3.2",
                  "versionStartIncluding": "2.3.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "AND"
            },
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:erlang:rebar3:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "3.27.0",
                  "versionStartIncluding": "3.9.1",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "AND"
            }
          ],
          "operator": "OR"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Michael Lubas / Paraxial.io"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Jonatan M\u00e4nnchen / EEF"
        },
        {
          "lang": "en",
          "type": "remediation reviewer",
          "value": "Eric Meadows-J\u00f6nsson / Hex.pm"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Uncontrolled Resource Consumption, Deserialization of Untrusted Data vulnerability in hexpm hex_core (hex_api modules), hexpm hex (mix_hex_api modules), erlang rebar3 (r3_hex_api modules) allows Object Injection, Excessive Allocation.\u003cp\u003e This vulnerability is associated with program files \u003ctt\u003esrc/hex_api.erl\u003c/tt\u003e, \u003ctt\u003esrc/mix_hex_api.erl\u003c/tt\u003e, \u003ctt\u003eapps/rebar/src/vendored/r3_hex_api.erl\u003c/tt\u003e and program routines \u003ctt\u003ehex_core:request/4\u003c/tt\u003e, \u003ctt\u003emix_hex_api:request/4\u003c/tt\u003e, \u003ctt\u003er3_hex_api:request/4\u003c/tt\u003e.\u003c/p\u003e\u003cp\u003eThis issue affects hex_core: from 0.1.0 before 0.12.1; hex: from 2.3.0 before 2.3.2; rebar3: from 3.9.1 before 3.27.0.\u003c/p\u003e"
            }
          ],
          "value": "Uncontrolled Resource Consumption, Deserialization of Untrusted Data vulnerability in hexpm hex_core (hex_api modules), hexpm hex (mix_hex_api modules), erlang rebar3 (r3_hex_api modules) allows Object Injection, Excessive Allocation. This vulnerability is associated with program files src/hex_api.erl, src/mix_hex_api.erl, apps/rebar/src/vendored/r3_hex_api.erl and program routines hex_core:request/4, mix_hex_api:request/4, r3_hex_api:request/4.\n\nThis issue affects hex_core: from 0.1.0 before 0.12.1; hex: from 2.3.0 before 2.3.2; rebar3: from 3.9.1 before 3.27.0."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-586",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-586 Object Injection"
            }
          ]
        },
        {
          "capecId": "CAPEC-130",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-130 Excessive Allocation"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 2,
            "baseSeverity": "LOW",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "LOW",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "ACTIVE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "LOW",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-400",
              "description": "CWE-400 Uncontrolled Resource Consumption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-502",
              "description": "CWE-502 Deserialization of Untrusted Data",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-27T15:40:33.166Z",
        "orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
        "shortName": "EEF"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory",
            "related"
          ],
          "url": "https://github.com/hexpm/hex_core/security/advisories/GHSA-hx9w-f2w9-9g96"
        },
        {
          "tags": [
            "related"
          ],
          "url": "https://cna.erlef.org/cves/CVE-2026-21619.html"
        },
        {
          "tags": [
            "related"
          ],
          "url": "https://osv.dev/vulnerability/EEF-CVE-2026-21619"
        },
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          "tags": [
            "patch"
          ],
          "url": "https://github.com/hexpm/hex_core/commit/cdf726095bca85ad2549d146df1e831ae93c2b13"
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        {
          "tags": [
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          "url": "https://github.com/hexpm/hex/commit/636739f3322514e9303ca335fb630696fcbb3c95"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/erlang/rebar3/commit/1d4478f527e373de0b225951e53115450e0d9b9d"
        }
      ],
      "source": {
        "discovery": "INTERNAL"
      },
      "title": "Unsafe Deserialization of Erlang Terms in hex_core",
      "x_generator": {
        "engine": "Vulnogram 0.5.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
    "assignerShortName": "EEF",
    "cveId": "CVE-2026-21619",
    "datePublished": "2026-02-27T17:57:11.513Z",
    "dateReserved": "2026-01-01T03:46:45.933Z",
    "dateUpdated": "2026-05-27T15:40:33.166Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}