Missing authentication in sparkle-project Sparkle
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · Low · Low
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-306.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| sparkle-project | Sparkle | up to 2.9.1 | — | No fix listed | CNA |
| — | github.com/sparkle-project/Sparkle (SwiftURL) | up to 2.9.1 | — | No fix listed | GHSA-g3hp-f6mg-559v |
- Sparkle Vendorsparkle-project Affected up to 2.9.1 Fixed in — No fix listed CNA
- github.com/sparkle-project/Sparkle (SwiftURL) Vendor— Affected up to 2.9.1 Fixed in — No fix listed GHSA-g3hp-f6mg-559v
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:sparkle-project:sparkle:*:*:*:*:*:*:*:* | up to 2.9.1 | Vulnerable | sparkle-project |
- cpe:2.3:a:sparkle-project:sparkle:*:*:*:*:*:*:*:* Versions up to 2.9.1 Vulnerable ·sparkle-project
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-47122
- 2026-10-03 Alias added: GHSA-g3hp-f6mg-559v
References
More sparkle-project Sparkle vulnerabilities
- TI-2026-34713 Sparkle: Binary delta apply intermediate-symlink traversal in malicious .delta CVSS 3.1MEDIUM 6.1
- TI-2025-00423 Signing Checks Bypass CVSS 3.1HIGH 7.3
Sources
- CVE-2026-47122 · CVE Program
- CVE-2026-47122 · NVD
- FIRST EPSS
- GHSA-g3hp-f6mg-559v · GitHub Advisory Database · CC BY 4.0
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