CVE-2026-45799Wire provides gRPC and protocol buffers for Android, Kotlin, Swift, and Java.
Updated under an hour ago ()
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It affects squareup wire. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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
- 7.5 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-129
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Aug 12, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
squareup wire squareup:wire | before 6.3.0; 7.0.0; 7.0.0 | NVD |
References
- https://github.com/square/wire/commit/47d5b0dba53935d5332cd41a80a353b3fc90e7b0patch
- https://github.com/square/wire/commit/e4e56fab38a547d9625f05c97f1d8f0bcc3a5773patch
- https://github.com/square/wire/pull/3595issue-tracking
- https://github.com/square/wire/pull/3597issue-tracking
- https://github.com/square/wire/releases/tag/6.3.0release-notes
- https://github.com/square/wire/releases/tag/7.0.0-alpha03release-notes
- https://github.com/square/wire/security/advisories/GHSA-7xpr-hc2w-34m9vendor-advisory, exploit
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.