CVE-2026-61695
7.5 HIGHpublic exploit availablePublished 2026-09-23 · Updated 2026-09-29
AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.
NVD description
Wire provides gRPC and protocol buffers for Android, Kotlin, Swift, and Java. Prior to 6.4.1 and 7.0.0-alpha04, Wire's Swift runtime ProtoReader.skipGroup(expectedEndTag:unknownFieldsWriter:) accepts a negative length for a LENGTH_DELIMITED field inside an unknown START_GROUP field. ProtoReader.readData() forwards the negative count to ReadBuffer.readData(count:), whose upper-bound-only check permits the value to reach Foundation Data(bytes:count:) and trigger an unrecoverable process trap instead of a catchable ProtoDecoder.Error. Any Swift process decoding untrusted protobuf bytes can be crashed without authentication, user interaction, or knowledge of the target schema. This issue is fixed in versions 6.4.1 and 7.0.0-alpha04.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-129
Public exploit & PoC references
- https://github.com/square/wire/commit/24043b6b3a5e5974a978f2745b76d50b31407c1c
- https://github.com/square/wire/commit/81ff7f24a6795d9a8be2e03f272b2d979a5d2c7e
- https://github.com/square/wire/pull/3616
- https://github.com/square/wire/releases/tag/6.4.1
- https://github.com/square/wire/releases/tag/7.0.0-alpha04
- https://github.com/square/wire/security/advisories/GHSA-86wm-r4c5-2rc9
- https://github.com/square/wire/security/advisories/GHSA-86wm-r4c5-2rc9
All references
- https://github.com/square/wire/commit/24043b6b3a5e5974a978f2745b76d50b31407c1c
- https://github.com/square/wire/commit/81ff7f24a6795d9a8be2e03f272b2d979a5d2c7e
- https://github.com/square/wire/pull/3616
- https://github.com/square/wire/releases/tag/6.4.1
- https://github.com/square/wire/releases/tag/7.0.0-alpha04
- https://github.com/square/wire/security/advisories/GHSA-86wm-r4c5-2rc9
- https://github.com/square/wire/security/advisories/GHSA-86wm-r4c5-2rc9
Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.
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