How severe is CVE-2026-47122?

CVE-2026-47122 has a CVSS 3.x base score of 4.2, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability low.

Is CVE-2026-47122 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-47122?

CVE-2026-47122 affects Sparkle-project Sparkle. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-47122?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2026-47122 published?

CVE-2026-47122 was published on 2026-07-21 and last updated on 2026-08-05.

CVE-2026-47122

CVE-2026-47122 is a medium-severity vulnerability in Sparkle-project Sparkle with a CVSS 3.x base score of 4.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-306.

Key facts

Severity: Medium (CVSS 3.x base score 4.2)
EPSS exploit prediction: 0% (1st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-306
Affected product: Sparkle-project Sparkle
Published: 2026-07-21
Last modified: 2026-08-05

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.

Frequently asked questions

What is CVE-2026-47122?: 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.
How severe is CVE-2026-47122?: CVE-2026-47122 has a CVSS 3.x base score of 4.2, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability low.
Is CVE-2026-47122 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-47122?: CVE-2026-47122 affects Sparkle-project Sparkle. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-47122?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-47122 published?: CVE-2026-47122 was published on 2026-07-21 and last updated on 2026-08-05.

References

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

Affected products (1)

cpe:2.3:a:sparkle-project:sparkle:*:*:*:*:*:*:*:*

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