{"cve":"CVE-2026-45799","nvd":{"published":"2026-07-17T20:17:18.393","modified":"2026-10-24T20:10:00.137","status":"Analyzed","description":"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_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-129"],"references":["https://github.com/square/wire/commit/47d5b0dba53935d5332cd41a80a353b3fc90e7b0","https://github.com/square/wire/commit/e4e56fab38a547d9625f05c97f1d8f0bcc3a5773","https://github.com/square/wire/pull/3595","https://github.com/square/wire/pull/3597","https://github.com/square/wire/releases/tag/6.3.0"],"products":["squareup:wire"],"source":"nvd","synced_at":"2026-10-25T17:50:08.599881581+00:00"},"epss":{"cve":"CVE-2026-45799","score":0.00728,"percentile":0.53899,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-7xpr-hc2w-34m9","url":"https://osv.dev/vulnerability/GHSA-7xpr-hc2w-34m9","summary":"Wire: skipGroup() missing negative-length check allows 10-byte payload to crash any Wire-decoding service ","modified":"2026-08-05T15:00:21.927555867Z","packages":[{"ecosystem":"Maven","name":"com.squareup.wire:wire-runtime-jvm","purl":"pkg:maven/com.squareup.wire/wire-runtime-jvm","ranges":["<6.3.0"],"fixed":["6.3.0"]},{"ecosystem":"Maven","name":"com.squareup.wire:wire-runtime","purl":"pkg:maven/com.squareup.wire/wire-runtime","ranges":["<6.3.0"],"fixed":["6.3.0"]},{"ecosystem":"Maven","name":"com.squareup.wire:wire-runtime","purl":"pkg:maven/com.squareup.wire/wire-runtime","ranges":[">=7.0.0-alpha01 <7.0.0-alpha03"],"fixed":["7.0.0-alpha03"]},{"ecosystem":"Maven","name":"com.squareup.wire:wire-runtime-jvm","purl":"pkg:maven/com.squareup.wire/wire-runtime-jvm","ranges":[">=7.0.0-alpha01 <7.0.0-alpha03"],"fixed":["7.0.0-alpha03"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}