Vulnerability-Lookup

CVE-2026-32148 (GCVE-0-2026-32148)

Vulnerability from cvelistv5 – Published: 2026-04-30 18:17 – Updated: 2026-05-01 04:33

Title

Lockfile checksums not verified in Hex allows dependency integrity bypass

Summary

Insufficient Verification of Data Authenticity vulnerability in hexpm hex (Hex.RemoteConverger module) allows dependency integrity bypass via unverified lockfile checksums. Hex stores checksums for dependencies in the mix.lock file to ensure reproducible and integrity-checked builds. However, Hex.RemoteConverger.verify_resolved/2 never executes checksum verification because the lock data returned by Hex.Utils.lock/1 uses string-based dependency names, while the verification logic compares against atom-based names. This type mismatch causes the verification code path to be silently skipped. Checksums are still validated when packages are initially downloaded from the registry, but mismatches between the lockfile and resolved dependencies are not detected. An attacker who can influence cached packages (e.g., via local cache poisoning or a compromised registry) can provide modified dependency contents that will be accepted without detection. The mix.lock file is silently rewritten with the checksum values from the registry, erasing evidence of tampering. This issue affects hex: from 0.16.0 before 2.4.2.

Severity

8.9 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-04-30 19:03 UTC

CWE

CWE-354 - Improper Validation of Integrity Check Value
CWE-494 - Download of Code Without Integrity Check

Assigner

EEF CNA under the mitre root

CNA scorecard A 97/100 over 344 records in the last 180 days details

References

4 references

URL	Tags
https://github.com/hexpm/hex/security/advisories/…	vendor-advisoryrelated
https://cna.erlef.org/cves/CVE-2026-32148.html	related
https://osv.dev/vulnerability/EEF-CVE-2026-32148	related
https://github.com/hexpm/hex/commit/d7528c8199a11…	patch

Impacted products

2 products

Vendor	Product	Version	CPE status
hexpm	hex	Affected: 0.16.0 , < 2.4.2 (semver) cpe:2.3:a:hexpm:hex::::::::
hexpm	hex	Affected: e01576f28c64af9fae6eb17e2dad30f6efcb303c , < d7528c8199a1144511508bf3a6460026a5a14c8e (git) cpe:2.3:a:hexpm:hex::::::::

Credits

Paul Fleischer Jonatan Männchen / EEF Eric Meadows-Jönsson / Hex.pm

Show details on NVD website

JSON

To clipboard

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                "value": "CWE-494"
              }
            ],
            "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "current_release_date": "2026-06-05T19:19:56+00:00",
      "cve": "CVE-2026-32148",
      "id": "CVE-2026-32148",
      "initial_release_date": "2026-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "Lockfile checksums not verified in Hex allows dependency integrity bypass",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-32148.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-32148",
                    "options": [
                      {
                        "Exploitation": "poc"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-04-30T19:03:06.385106Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-04-30T19:03:21.319Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "references": [
              {
                "tags": [
                  "exploit"
                ],
                "url": "https://github.com/hexpm/hex/security/advisories/GHSA-hmv9-4mfr-m92v"
              }
            ],
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "cpes": [
                "cpe:2.3:a:hexpm:hex:*:*:*:*:*:*:*:*"
              ],
              "defaultStatus": "unaffected",
              "modules": [
                "\u0027Elixir.Hex.RemoteConverger\u0027"
              ],
              "packageName": "hex",
              "packageURL": "pkg:otp/hex?repository_url=https:%2F%2Fgithub.com%2Fhexpm%2Fhex\u0026vcs_url=git%20https:%2F%2Fgithub.com%2Fhexpm%2Fhex.git",
              "product": "hex",
              "programFiles": [
                "lib/hex/remote_converger.ex"
              ],
              "programRoutines": [
                {
                  "name": "\u0027Elixir.Hex.RemoteConverger\u0027:verify_resolved/2"
                }
              ],
              "repo": "https://github.com/hexpm/hex",
              "vendor": "hexpm",
              "versions": [
                {
                  "lessThan": "2.4.2",
                  "status": "affected",
                  "version": "0.16.0",
                  "versionType": "semver"
                }
              ]
            },
            {
              "collectionURL": "https://github.com",
              "cpes": [
                "cpe:2.3:a:hexpm:hex:*:*:*:*:*:*:*:*"
              ],
              "defaultStatus": "unaffected",
              "modules": [
                "\u0027Elixir.Hex.RemoteConverger\u0027"
              ],
              "packageName": "hexpm/hex",
              "packageURL": "pkg:github/hexpm/hex",
              "product": "hex",
              "programFiles": [
                "lib/hex/remote_converger.ex"
              ],
              "programRoutines": [
                {
                  "name": "\u0027Elixir.Hex.RemoteConverger\u0027:verify_resolved/2"
                }
              ],
              "repo": "https://github.com/hexpm/hex.git",
              "vendor": "hexpm",
              "versions": [
                {
                  "lessThan": "d7528c8199a1144511508bf3a6460026a5a14c8e",
                  "status": "affected",
                  "version": "e01576f28c64af9fae6eb17e2dad30f6efcb303c",
                  "versionType": "git"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:a:hexpm:hex:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "2.4.2",
                      "versionStartIncluding": "0.16.0",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ],
              "operator": "AND"
            }
          ],
          "credits": [
            {
              "lang": "en",
              "type": "finder",
              "value": "Paul Fleischer"
            },
            {
              "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": "Insufficient Verification of Data Authenticity vulnerability in hexpm hex (\u003ctt\u003eHex.RemoteConverger\u003c/tt\u003e module) allows dependency integrity bypass via unverified lockfile checksums.\u003cp\u003eHex stores checksums for dependencies in the \u003ctt\u003emix.lock\u003c/tt\u003e file to ensure reproducible and integrity-checked builds. However, \u003ctt\u003eHex.RemoteConverger.verify_resolved/2\u003c/tt\u003e never executes checksum verification because the lock data returned by \u003ctt\u003eHex.Utils.lock/1\u003c/tt\u003e uses string-based dependency names, while the verification logic compares against atom-based names. This type mismatch causes the verification code path to be silently skipped. Checksums are still validated when packages are initially downloaded from the registry, but mismatches between the lockfile and resolved dependencies are not detected.\u003c/p\u003e\u003cp\u003eAn attacker who can influence cached packages (e.g., via local cache poisoning or a compromised registry) can provide modified dependency contents that will be accepted without detection. The \u003ctt\u003emix.lock\u003c/tt\u003e file is silently rewritten with the checksum values from the registry, erasing evidence of tampering.\u003c/p\u003e\u003cp\u003eThis issue affects hex: from 0.16.0 before 2.4.2.\u003c/p\u003e"
                }
              ],
              "value": "Insufficient Verification of Data Authenticity vulnerability in hexpm hex (Hex.RemoteConverger module) allows dependency integrity bypass via unverified lockfile checksums.\n\nHex stores checksums for dependencies in the mix.lock file to ensure reproducible and integrity-checked builds. However, Hex.RemoteConverger.verify_resolved/2 never executes checksum verification because the lock data returned by Hex.Utils.lock/1 uses string-based dependency names, while the verification logic compares against atom-based names. This type mismatch causes the verification code path to be silently skipped. Checksums are still validated when packages are initially downloaded from the registry, but mismatches between the lockfile and resolved dependencies are not detected.\n\nAn attacker who can influence cached packages (e.g., via local cache poisoning or a compromised registry) can provide modified dependency contents that will be accepted without detection. The mix.lock file is silently rewritten with the checksum values from the registry, erasing evidence of tampering.\n\nThis issue affects hex: from 0.16.0 before 2.4.2."
            }
          ],
          "metrics": [
            {
              "cvssV4_0": {
                "Automatable": "NOT_DEFINED",
                "Recovery": "NOT_DEFINED",
                "Safety": "NOT_DEFINED",
                "attackComplexity": "LOW",
                "attackRequirements": "PRESENT",
                "attackVector": "NETWORK",
                "baseScore": 8.9,
                "baseSeverity": "HIGH",
                "exploitMaturity": "NOT_DEFINED",
                "privilegesRequired": "NONE",
                "providerUrgency": "NOT_DEFINED",
                "subAvailabilityImpact": "HIGH",
                "subConfidentialityImpact": "HIGH",
                "subIntegrityImpact": "HIGH",
                "userInteraction": "ACTIVE",
                "valueDensity": "NOT_DEFINED",
                "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H",
                "version": "4.0",
                "vulnAvailabilityImpact": "HIGH",
                "vulnConfidentialityImpact": "HIGH",
                "vulnIntegrityImpact": "HIGH",
                "vulnerabilityResponseEffort": "NOT_DEFINED"
              },
              "format": "CVSS",
              "scenarios": [
                {
                  "lang": "en",
                  "value": "GENERAL"
                }
              ]
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-354",
                  "description": "CWE-354 Improper Validation of Integrity Check Value",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            },
            {
              "descriptions": [
                {
                  "cweId": "CWE-494",
                  "description": "CWE-494 Download of Code Without Integrity Check",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-05-01T04:33:38.198Z",
            "orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
            "shortName": "EEF"
          },
          "references": [
            {
              "tags": [
                "vendor-advisory",
                "related"
              ],
              "url": "https://github.com/hexpm/hex/security/advisories/GHSA-hmv9-4mfr-m92v"
            },
            {
              "tags": [
                "related"
              ],
              "url": "https://cna.erlef.org/cves/CVE-2026-32148.html"
            },
            {
              "tags": [
                "related"
              ],
              "url": "https://osv.dev/vulnerability/EEF-CVE-2026-32148"
            },
            {
              "tags": [
                "patch"
              ],
              "url": "https://github.com/hexpm/hex/commit/d7528c8199a1144511508bf3a6460026a5a14c8e"
            }
          ],
          "source": {
            "discovery": "EXTERNAL"
          },
          "title": "Lockfile checksums not verified in Hex allows dependency integrity bypass",
          "x_generator": {
            "engine": "cvelib 1.8.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
        "assignerShortName": "EEF",
        "cveId": "CVE-2026-32148",
        "datePublished": "2026-04-30T18:17:03.783Z",
        "dateReserved": "2026-03-10T22:37:29.213Z",
        "dateUpdated": "2026-05-01T04:33:38.198Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

FKIE_CVE-2026-32148

Vulnerability from fkie_nvd - Published: 2026-04-30 19:16 - Updated: 2026-10-26 22:10

Severity

5.9 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Summary

References

URL	Tags
6b3ad84c-e1a6-4bf7-a703-f496b71e49db	https://cna.erlef.org/cves/CVE-2026-32148.html	Third Party Advisory
6b3ad84c-e1a6-4bf7-a703-f496b71e49db	https://github.com/hexpm/hex/commit/d7528c8199a1144511508bf3a6460026a5a14c8e	Patch
6b3ad84c-e1a6-4bf7-a703-f496b71e49db	https://github.com/hexpm/hex/security/advisories/GHSA-hmv9-4mfr-m92v	Exploit, Patch, Vendor Advisory
6b3ad84c-e1a6-4bf7-a703-f496b71e49db	https://osv.dev/vulnerability/EEF-CVE-2026-32148	Exploit, Third Party Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0	https://github.com/hexpm/hex/security/advisories/GHSA-hmv9-4mfr-m92v	Exploit, Patch, Vendor Advisory

Impacted products

	Vendor	Product	Version
	hex	hex	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:hexpm:hex:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "modules": [
            "\u0027Elixir.Hex.RemoteConverger\u0027"
          ],
          "packageName": "hex",
          "packageURL": "pkg:otp/hex?repository_url=https:%2F%2Fgithub.com%2Fhexpm%2Fhex\u0026vcs_url=git%20https:%2F%2Fgithub.com%2Fhexpm%2Fhex.git",
          "product": "hex",
          "programFiles": [
            "lib/hex/remote_converger.ex"
          ],
          "programRoutines": [
            {
              "name": "\u0027Elixir.Hex.RemoteConverger\u0027:verify_resolved/2"
            }
          ],
          "repo": "https://github.com/hexpm/hex",
          "vendor": "hexpm",
          "versions": [
            {
              "lessThan": "2.4.2",
              "status": "affected",
              "version": "0.16.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "collectionURL": "https://github.com",
          "cpes": [
            "cpe:2.3:a:hexpm:hex:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "modules": [
            "\u0027Elixir.Hex.RemoteConverger\u0027"
          ],
          "packageName": "hexpm/hex",
          "packageURL": "pkg:github/hexpm/hex",
          "product": "hex",
          "programFiles": [
            "lib/hex/remote_converger.ex"
          ],
          "programRoutines": [
            {
              "name": "\u0027Elixir.Hex.RemoteConverger\u0027:verify_resolved/2"
            }
          ],
          "repo": "https://github.com/hexpm/hex.git",
          "vendor": "hexpm",
          "versions": [
            {
              "lessThan": "d7528c8199a1144511508bf3a6460026a5a14c8e",
              "status": "affected",
              "version": "e01576f28c64af9fae6eb17e2dad30f6efcb303c",
              "versionType": "git"
            }
          ]
        }
      ],
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:hex:hex:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "A7D2A388-56D7-4B82-85AB-6B7C22A6AC18",
              "versionEndExcluding": "2.4.2",
              "versionStartIncluding": "0.16.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Insufficient Verification of Data Authenticity vulnerability in hexpm hex (Hex.RemoteConverger module) allows dependency integrity bypass via unverified lockfile checksums.\n\nHex stores checksums for dependencies in the mix.lock file to ensure reproducible and integrity-checked builds. However, Hex.RemoteConverger.verify_resolved/2 never executes checksum verification because the lock data returned by Hex.Utils.lock/1 uses string-based dependency names, while the verification logic compares against atom-based names. This type mismatch causes the verification code path to be silently skipped. Checksums are still validated when packages are initially downloaded from the registry, but mismatches between the lockfile and resolved dependencies are not detected.\n\nAn attacker who can influence cached packages (e.g., via local cache poisoning or a compromised registry) can provide modified dependency contents that will be accepted without detection. The mix.lock file is silently rewritten with the checksum values from the registry, erasing evidence of tampering.\n\nThis issue affects hex: from 0.16.0 before 2.4.2."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de verificaci\u00f3n insuficiente de la autenticidad de los datos en hexpm hex (m\u00f3dulo Hex.RemoteConverger) permite el bypass de la integridad de las dependencias a trav\u00e9s de sumas de verificaci\u00f3n de archivos de bloqueo no verificadas.\n\nHex almacena sumas de verificaci\u00f3n para las dependencias en el archivo mix.lock para asegurar compilaciones reproducibles y con integridad verificada. Sin embargo, Hex.RemoteConverger.verify_resolved/2 nunca ejecuta la verificaci\u00f3n de la suma de verificaci\u00f3n porque los datos de bloqueo devueltos por Hex.Utils.lock/1 utilizan nombres de dependencia basados en cadenas, mientras que la l\u00f3gica de verificaci\u00f3n compara con nombres basados en \u00e1tomos. Esta falta de coincidencia de tipos hace que la ruta del c\u00f3digo de verificaci\u00f3n se omita silenciosamente. Las sumas de verificaci\u00f3n a\u00fan se validan cuando los paquetes se descargan inicialmente del registro, pero las discrepancias entre el archivo de bloqueo y las dependencias resueltas no se detectan.\n\nUn atacante que puede influir en los paquetes en cach\u00e9 (por ejemplo, a trav\u00e9s de envenenamiento de cach\u00e9 local o un registro comprometido) puede proporcionar contenidos de dependencia modificados que ser\u00e1n aceptados sin detecci\u00f3n. El archivo mix.lock se reescribe silenciosamente con los valores de suma de verificaci\u00f3n del registro, borrando la evidencia de manipulaci\u00f3n.\n\nEste problema afecta a hex: desde 0.16.0 antes de 2.4.2."
    }
  ],
  "id": "CVE-2026-32148",
  "lastModified": "2026-10-26T22:10:00.163",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.9,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "PRESENT",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 8.9,
          "baseSeverity": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "HIGH",
          "subConfidentialityImpact": "HIGH",
          "subIntegrityImpact": "HIGH",
          "userInteraction": "ACTIVE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "HIGH",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "HIGH",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-32148",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-04-30T19:03:06.385106Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-04-30T19:16:09.000",
  "references": [
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://cna.erlef.org/cves/CVE-2026-32148.html"
    },
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/hexpm/hex/commit/d7528c8199a1144511508bf3a6460026a5a14c8e"
    },
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "tags": [
        "Exploit",
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://github.com/hexpm/hex/security/advisories/GHSA-hmv9-4mfr-m92v"
    },
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://osv.dev/vulnerability/EEF-CVE-2026-32148"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "tags": [
        "Exploit",
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://github.com/hexpm/hex/security/advisories/GHSA-hmv9-4mfr-m92v"
    }
  ],
  "sourceIdentifier": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-354"
        },
        {
          "lang": "en",
          "value": "CWE-494"
        }
      ],
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "type": "Secondary"
    }
  ]
}

MSRC_CVE-2026-32148

Vulnerability from csaf_microsoft - Published: 2026-05-03 01:03 - Updated: 2026-09-25 02:40

Summary

Lockfile checksums not verified in Hex allows dependency integrity bypass

Scope

1 vulnerability in this advisory, including CVE-2026-32148.

CVE-2026-32148

Known affected: 2 products

Open the full advisory

UBUNTU-CVE-2026-32148 (CVE-2026-32148)

Vulnerability from osv_ubuntu – Published: 2026-04-30 19:16 – Updated: 2026-10-08 09:33 – Source website

Details

Severity

8.9 (High)


                    
                      CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

5.9 (Medium)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-32148	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-32148	REPORT
	https://github.com/hexpm/hex/security/advisories/…	REPORT
	https://cna.erlef.org/cves/CVE-2026-32148.html	REPORT
	https://osv.dev/vulnerability/EEF-CVE-2026-32148	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "erlang-hex",
            "binary_version": "2.0.5-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "erlang-hex",
        "purl": "pkg:deb/ubuntu/erlang-hex@2.0.5-1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.0.5-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "erlang-hex",
            "binary_version": "2.0.6-2build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "erlang-hex",
        "purl": "pkg:deb/ubuntu/erlang-hex@2.0.6-2build1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.0.6-2",
        "2.0.6-2build1"
      ]
    }
  ],
  "aliases": [],
  "details": "Insufficient Verification of Data Authenticity vulnerability in hexpm hex (Hex.RemoteConverger module) allows dependency integrity bypass via unverified lockfile checksums. Hex stores checksums for dependencies in the mix.lock file to ensure reproducible and integrity-checked builds. However, Hex.RemoteConverger.verify_resolved/2 never executes checksum verification because the lock data returned by Hex.Utils.lock/1 uses string-based dependency names, while the verification logic compares against atom-based names. This type mismatch causes the verification code path to be silently skipped. Checksums are still validated when packages are initially downloaded from the registry, but mismatches between the lockfile and resolved dependencies are not detected. An attacker who can influence cached packages (e.g., via local cache poisoning or a compromised registry) can provide modified dependency contents that will be accepted without detection. The mix.lock file is silently rewritten with the checksum values from the registry, erasing evidence of tampering. This issue affects hex: from 0.16.0 before 2.4.2.",
  "id": "UBUNTU-CVE-2026-32148",
  "modified": "2026-10-08T09:33:53Z",
  "published": "2026-04-30T19:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-32148"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-32148"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/hexpm/hex/security/advisories/GHSA-hmv9-4mfr-m92v"
    },
    {
      "type": "REPORT",
      "url": "https://cna.erlef.org/cves/CVE-2026-32148.html"
    },
    {
      "type": "REPORT",
      "url": "https://osv.dev/vulnerability/EEF-CVE-2026-32148"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H",
      "type": "CVSS_V4"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-32148"
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-32148 (GCVE-0-2026-32148)

FKIE_CVE-2026-32148

MSRC_CVE-2026-32148

UBUNTU-CVE-2026-32148 (CVE-2026-32148)

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