Vulnerability in Square Wire
CVE-2026-45799
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 le…
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Square Wire — versions < 6.3.0, >= 7.0.0-alpha01, < 7.0.0-alpha03
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_CONFIRM)
Frequently asked questions
- What is CVE-2026-45799?
- CVE-2026-45799 is a high-severity vulnerability in Square Wire, classified under Improper Validation of Array Index. CVSS score: 7.5/10. Published 2026-07-17.
- How severe is CVE-2026-45799?
- High severity. CVSS v3 base score is 7.5 out of 10.