CVE-2026-44302 PUBLISHED

Snappier: Infinite loop in SnappyStream decompression on malformed framed input

Assigner: GitHub_M
Reserved: 05.05.2026 Published: 12.05.2026 Updated: 12.05.2026

Snappier is a high performance C# implementation of the Snappy compression algorithm. Prior to 1.3.1, Snappier.SnappyStream enters an uncatchable infinite loop when decompressing a malformed framed-format Snappy stream as small as 15 bytes. This vulnerability is fixed in 1.3.1.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS Score: 7.5

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	None
Privileges Required	None	Integrity Impact	None
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	brantburnett
Product	Snappier
Versions	Version < 1.3.1 is affected

References

https://github.com/brantburnett/Snappier/security/advisories/GHSA-pggp-6c3x-2xmx

Problem Types

CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') CWE