CVE-2026-45799

{"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", "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", "source": "security-advisories@github.com"}, {"url": "https://github.com/square/wire/security/advisories/GHSA-7xpr-hc2w-34m9", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Awaiting Analysis", "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": "2026-07-23T16:15:11.587", "sourceIdentifier": "security-advisories@github.com"}