CVE-2026-47122

MEDIUMPre-NVD 4.24.2—
EchelonGraph scoreMEDIUM confidence

Score 4.2 from GitHub Security Advisory published 2026-05-29. a secondary CVSS source baseline 4.2; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
4.2EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.2Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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 -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 v3
4.2
EG Score
4.2(medium)
EG Risk
19(Track)
EG Risk 19/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity42% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
0%
KEV
Not listed

Published

May 29, 2026

Last Modified

July 23, 2026

Advisory Details (1)

Auto-updated Jul 21, 2026
Patch available. Sources: github.
github Patch Available

AppInstaller post-stage-1 XPC listener accepts unvalidated connections, allowing spoofed appcast item data injection. · Advisory · sparkle-project/Sparkle · GitHub

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

Vendor Advisories for CVE-2026-47122(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
swiftgithub.com/sparkle-project/Sparkle—ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 10× in last 7d / 19× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-27 09:20 UTCEG score recompute
  2. 2026-07-27 09:20 UTCGHSA enrichment
  3. 2026-07-26 14:54 UTCEPSS rescore
  4. 2026-07-26 14:54 UTCEPSS rescore
  5. 2026-07-26 07:37 UTCEG score recompute
  6. 2026-07-26 07:37 UTCGHSA enrichment
  7. 2026-07-25 14:18 UTCEPSS rescore
  8. 2026-07-24 14:17 UTCEPSS rescore
  9. 2026-07-23 03:17 UTCEG score recompute
  10. 2026-07-22 14:08 UTCEPSS rescore
  11. 2026-07-16 01:49 UTCGHSA enrichment
  12. 2026-07-14 13:55 UTCGHSA enrichment
  13. 2026-07-11 17:23 UTCGHSA enrichment
  14. 2026-07-08 17:17 UTCGHSA enrichment
  15. 2026-07-02 03:48 UTCGHSA enrichment
  16. 2026-07-01 01:28 UTCGHSA enrichment
  17. 2026-06-29 21:29 UTCGHSA enrichment
  18. 2026-06-28 19:46 UTCGHSA enrichment
  19. 2026-06-27 17:58 UTCGHSA enrichment
  20. 2026-06-26 16:10 UTCGHSA enrichment
  21. 2026-06-25 06:19 UTCGHSA enrichment
  22. 2026-06-24 02:49 UTCGHSA enrichment
  23. 2026-06-18 04:08 UTCGHSA enrichment
  24. 2026-06-17 02:25 UTCGHSA enrichment
  25. 2026-06-16 00:42 UTCGHSA enrichment
Show 19 more
  1. 2026-06-14 23:18 UTCEPSS rescore
  2. 2026-06-14 22:59 UTCGHSA enrichment
  3. 2026-06-13 23:00 UTCEPSS rescore
  4. 2026-06-13 21:17 UTCGHSA enrichment
  5. 2026-06-12 23:12 UTCEPSS rescore
  6. 2026-06-12 19:33 UTCGHSA enrichment
  7. 2026-06-11 17:50 UTCGHSA enrichment
  8. 2026-06-10 16:07 UTCGHSA enrichment
  9. 2026-06-09 14:25 UTCGHSA enrichment
  10. 2026-06-08 12:41 UTCGHSA enrichment
  11. 2026-06-07 10:59 UTCGHSA enrichment
  12. 2026-06-06 09:17 UTCGHSA enrichment
  13. 2026-06-05 07:33 UTCGHSA enrichment
  14. 2026-06-04 05:51 UTCGHSA enrichment
  15. 2026-06-03 04:08 UTCGHSA enrichment
  16. 2026-06-02 02:25 UTCGHSA enrichment
  17. 2026-06-01 00:42 UTCGHSA enrichment
  18. 2026-05-29 20:20 UTCEG score recompute
  19. 2026-05-29 20:20 UTCGHSA enrichment

Related CVEs(same product + same CWE)

Same product

1 shown

swift:github.com/sparkle-project/Sparkle

Frequently asked(5)

What is CVE-2026-47122?
CVE-2026-47122 is a medium vulnerability published on May 29, 2026. 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…
When was CVE-2026-47122 disclosed?
CVE-2026-47122 was first published in the National Vulnerability Database on May 29, 2026, with the most recent update on July 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-47122 actively exploited?
CVE-2026-47122 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 99.8% of all scored CVEs.
What is the CVSS score of CVE-2026-47122?
CVE-2026-47122 has a CVSS v3 base score of 4.2 (NVD).
How do I remediate CVE-2026-47122?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-47122, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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