FKIE_CVE-2026-45799

Vulnerability from fkie_nvd - Published: 2026-07-17 20:17 - Updated: 2026-07-17 20:17
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
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.
References
security-advisories@github.comhttps://github.com/square/wire/commit/47d5b0dba53935d5332cd41a80a353b3fc90e7b0
security-advisories@github.comhttps://github.com/square/wire/commit/e4e56fab38a547d9625f05c97f1d8f0bcc3a5773
security-advisories@github.comhttps://github.com/square/wire/pull/3595
security-advisories@github.comhttps://github.com/square/wire/pull/3597
security-advisories@github.comhttps://github.com/square/wire/releases/tag/6.3.0
security-advisories@github.comhttps://github.com/square/wire/releases/tag/7.0.0-alpha03
security-advisories@github.comhttps://github.com/square/wire/security/advisories/GHSA-7xpr-hc2w-34m9
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "wire",
          "vendor": "square",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 6.3.0"
            },
            {
              "status": "affected",
              "version": "\u003e= 7.0.0-alpha01, \u003c 7.0.0-alpha03"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "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."
    }
  ],
  "id": "CVE-2026-45799",
  "lastModified": "2026-07-17T20:17:18.393",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-07-17T20:17:18.393",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/square/wire/commit/47d5b0dba53935d5332cd41a80a353b3fc90e7b0"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/square/wire/commit/e4e56fab38a547d9625f05c97f1d8f0bcc3a5773"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/square/wire/pull/3595"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/square/wire/pull/3597"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/square/wire/releases/tag/6.3.0"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/square/wire/releases/tag/7.0.0-alpha03"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/square/wire/security/advisories/GHSA-7xpr-hc2w-34m9"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-129"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}



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