Wire Swift runtime: negative LENGTH_DELIMITED length in skipGroup() crashes any protobuf-decoding service

Date Sep 23, 2026
Type Vendor advisory
Signal High-risk advisory
Vendor / Product Swift ยท github.com/square/wire
CVE CVE-2026-61695
High-risk advisory CVE-2026-61695

Summary

Wire Swift runtime: negative LENGTH_DELIMITED length in skipGroup() crashes any protobuf-decoding service

Why it matters

GitHub has published a reviewed security advisory for github.com/square/wire. Prioritize it with other application dependency updates.

Operator check

Check whether github.com/square/wire is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available.

Sources

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