CVE record · CVE-2026-47122

Sparkle's AppInstaller post-stage-1 XPC listener accepts unvalidated connections, allowing spoofed appcast item data injection

CVSS 4.2 MediumEPSS 0.0010 · 1st percentile

Published by the CVE Program (CNA: GitHub_M) at 21 Jul 2026, 13:57 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
sparkle-project	Sparkle	affected <= 2.9.1

Identifiers: CVE-2026-47122
CNA: GitHub_M
Weakness (CWE): CWE-306 · CWE-441
Tags: Sparkle
Authentication bypass
CWE-441
Published: 21 Jul 2026
Updated: 21 Jul 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
4.2	Medium	3.1	CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:L	CNA (GitHub_M)

CISA KEV Not listed.
EPSS 0.0010, the 1st percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 21 Jul 2026. New records show when each source confirmed them.

Sources

References from the CNA

github.com/sparkle-project/Sparkle/security/advisories/GHSA-g3hp-f6mg-559v confirm

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.