« Volver al listado

CVE-2026-45799

Estado: AnalizadaAlta (7.5)—

Wire provides gRPC and protocol buffers for Android, Kotlin, Swift, and Java. Prior to 6.3.0 and 7.0.0-alpha03, ByteArrayProtoReader32.skipGroup() and ProtoReader.skipGroup() in wire-runtime do not validate that a LENGTH_DELIMITED field length is non-negative before skip(), allowing a crafted protobuf varint encoding -128 as a signed Int to make skip(-128) move the internal position negative and make the next readByte() throw ArrayIndexOutOfBoundsException instead of the documented IOException or ProtocolException, which can crash services using ProtoAdapter.decode(byte[]) on untrusted payloads. This issue is fixed in versions 6.3.0 and 7.0.0-alpha03.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Vulnerabilidad en servicio web (gRPC) accesible por red sin autenticación (AV:N, PR:N) que causa DoS por crash de aplicación al procesar payloads protobuf malformados.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Filter Network TrafficVulnerability ScanningPrivileged Account ManagementNetwork SegmentationLimit Access to Resource Over NetworkApplication Isolation and Sandboxing

Tecnologías afectadas (1)

Squareup — Wire

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-45799",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-45799",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-07-20T13:51:12.411548Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "square",
          "product": "wire",
          "versions": [
            {
              "status": "affected",
              "version": "< 6.3.0"
            },
            {
              "status": "affected",
              "version": ">= 7.0.0-alpha01, < 7.0.0-alpha03"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-07-17T20:17:18.393",
  "references": [
    {
      "url": "https://github.com/square/wire/commit/47d5b0dba53935d5332cd41a80a353b3fc90e7b0",
      "tags": [
        "Patch"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/square/wire/commit/e4e56fab38a547d9625f05c97f1d8f0bcc3a5773",
      "tags": [
        "Patch"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/square/wire/pull/3595",
      "tags": [
        "Issue Tracking"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/square/wire/pull/3597",
      "tags": [
        "Issue Tracking"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/square/wire/releases/tag/6.3.0",
      "tags": [
        "Release Notes"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/square/wire/releases/tag/7.0.0-alpha03",
      "tags": [
        "Release Notes"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/square/wire/security/advisories/GHSA-7xpr-hc2w-34m9",
      "tags": [
        "Vendor Advisory",
        "Exploit"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/square/wire/security/advisories/GHSA-7xpr-hc2w-34m9",
      "tags": [
        "Vendor Advisory",
        "Exploit"
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-129"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Wire provides gRPC and protocol buffers for Android, Kotlin, Swift, and Java. Prior to 6.3.0 and 7.0.0-alpha03, ByteArrayProtoReader32.skipGroup() and ProtoReader.skipGroup() in wire-runtime do not validate that a LENGTH_DELIMITED field length is non-negative before skip(), allowing a crafted protobuf varint encoding -128 as a signed Int to make skip(-128) move the internal position negative and make the next readByte() throw ArrayIndexOutOfBoundsException instead of the documented IOException or ProtocolException, which can crash services using ProtoAdapter.decode(byte[]) on untrusted payloads. This issue is fixed in versions 6.3.0 and 7.0.0-alpha03."
    }
  ],
  "lastModified": "2026-08-12T19:04:04.763",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:squareup:wire:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F96A71D0-34CA-41EF-AD9B-6AE7A077FABE",
              "versionEndExcluding": "6.3.0"
            },
            {
              "criteria": "cpe:2.3:a:squareup:wire:7.0.0:alpha01:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "5147D638-F2E2-46D8-B4AB-3CA75DDA7521"
            },
            {
              "criteria": "cpe:2.3:a:squareup:wire:7.0.0:alpha02:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "83728E5D-61B7-4D17-A74B-D9B8577B29AD"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security-advisories@github.com"
}