CVEvulnerability
CVE-2026-45799
7.5 HIGH
Official page ↗
- Status
- Analyzed
- Published
- 2026-07-17
- Last modified
- 2026-10-24
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-129
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.
Affected configurations
• squareup wire (< 6.3.0)
• squareup wire 7.0.0
Related
Weakness · CWE (1)
- CWE-129 Improper Validation of Array Index weakness
References
- https://github.com/square/wire/commit/47d5b0dba53935d5332cd41a80a353b3fc90e7b0 Patch
- https://github.com/square/wire/commit/e4e56fab38a547d9625f05c97f1d8f0bcc3a5773 Patch
- https://github.com/square/wire/pull/3595 Issue Tracking
- https://github.com/square/wire/pull/3597 Issue Tracking
- https://github.com/square/wire/releases/tag/6.3.0 Release Notes
- https://github.com/square/wire/releases/tag/7.0.0-alpha03 Release Notes
- https://github.com/square/wire/security/advisories/GHSA-7xpr-hc2w-34m9 Vendor Advisory, Exploit
- https://github.com/square/wire/security/advisories/GHSA-7xpr-hc2w-34m9 Vendor Advisory, Exploit