CVE-2026-44302

HIGH

Snappier: Infinite loop in SnappyStream decompression on malformed framed input

Title source: cna

Description

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.

References (1)

Core 1

Core References

X_Refsource_Confirm x_refsource_confirm

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

Scores

CVSS v3 7.5

EPSS 0.0005

EPSS Percentile 16.5%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation poc

Automatable yes

Technical Impact partial

Details

CWE

CWE-835

Status published

Products (2)

brantburnett/Snappier < 1.3.1

nuget/Snappier 0 - 1.3.1NuGet

Published May 12, 2026

Tracked Since May 13, 2026