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Vulnerability record · CVE-2026-47122 · published 21 July 2026

CVE-2026-47122: Sparkle-project sparkle missing authentication for critical function vulnerability

Sparkle Project · Sparkle

Sparkle is a software update framework for macOS. In versions up to and including 2.9.1, `Autoupdate/AppInstaller.m`'s `shouldAcceptNewConnection:` only enforces `SUCodeSigningVerifier validateConnection:` before stage 1 completes. After `_performedStage1Installation = YES`, new connections to the registered Mach service `<bundleId>-spki` are accepted from any local process without team-ID or code-signing checks. As of time of publication, no known patched versions are available.

4.2 CVSS 3.1 Medium EPSS 0.11% · top 99.0% CWE-306 · Missing authentication for critical functionCWE-441 · CWE-441
4.2CVSS 3.1 base score
0.11%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
5 Aug 2026Last modified by NVD

Description

Sparkle is a software update framework for macOS. In versions up to and including 2.9.1, `Autoupdate/AppInstaller.m`'s `shouldAcceptNewConnection:` only enforces `SUCodeSigningVerifier validateConnection:` before stage 1 completes. After `_performedStage1Installation = YES`, new connections to the registered Mach service `<bundleId>-spki` are accepted from any local process without team-ID or code-signing checks. As of time of publication, no known patched versions are available.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/sparkle-project/Sparkle/security/advisories/GHSA-g3hp-f6mg-559v Vendor AdvisoryMitigation

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-47122), CISA KEV, FIRST EPSS (scores of 2026-10-06). This page is refreshed as NVD updates the record.