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 — 4 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
1%
KEV
Not listed

Published

May 29, 2026

Last Modified

August 5, 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 6× in last 7d / 25× 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.

Showing the most recent 100 of 103 total refreshes for this CVE.

  1. 2026-09-18 19:28 UTCEPSS rescore
  2. 2026-09-16 14:08 UTCEPSS rescore
  3. 2026-09-14 06:22 UTCEG score recompute
  4. 2026-09-14 06:22 UTCGHSA enrichment
  5. 2026-09-13 01:06 UTCOSV refresh
  6. 2026-09-12 15:01 UTCEPSS rescore
  7. 2026-09-11 14:53 UTCEPSS rescore
  8. 2026-09-11 09:37 UTCEPSS rescore
  9. 2026-09-10 09:34 UTCEPSS rescore
  10. 2026-09-08 22:00 UTCEPSS rescore
  11. 2026-09-07 16:01 UTCEPSS rescore
  12. 2026-09-06 13:47 UTCEPSS rescore
  13. 2026-09-04 05:06 UTCEPSS rescore
  14. 2026-09-01 13:54 UTCEPSS rescore
  15. 2026-08-30 19:17 UTCEPSS rescore
  16. 2026-08-30 01:22 UTCEPSS rescore
  17. 2026-08-28 21:41 UTCEPSS rescore
  18. 2026-08-27 14:25 UTCEPSS rescore
  19. 2026-08-26 14:46 UTCEPSS rescore
  20. 2026-08-25 04:16 UTCEG score recompute
  21. 2026-08-25 04:16 UTCGHSA enrichment
  22. 2026-08-23 14:10 UTCEG score recompute
  23. 2026-08-23 14:10 UTCGHSA enrichment
  24. 2026-08-23 00:19 UTCEPSS rescore
  25. 2026-08-21 14:59 UTCGHSA enrichment
Show 75 more
  1. 2026-08-20 10:24 UTCEG score recompute
  2. 2026-08-20 10:24 UTCGHSA enrichment
  3. 2026-08-19 17:04 UTCEPSS rescore
  4. 2026-08-17 06:51 UTCEG score recompute
  5. 2026-08-17 06:51 UTCGHSA enrichment
  6. 2026-08-16 14:56 UTCEPSS rescore
  7. 2026-08-16 02:14 UTCEPSS rescore
  8. 2026-08-15 18:40 UTCGHSA enrichment
  9. 2026-08-14 12:55 UTCGHSA enrichment
  10. 2026-08-13 11:12 UTCEG score recompute
  11. 2026-08-13 11:12 UTCGHSA enrichment
  12. 2026-08-12 13:51 UTCEPSS rescore
  13. 2026-08-12 09:24 UTCGHSA enrichment
  14. 2026-08-11 04:09 UTCGHSA enrichment
  15. 2026-08-10 02:26 UTCGHSA enrichment
  16. 2026-08-09 00:44 UTCGHSA enrichment
  17. 2026-08-07 23:01 UTCGHSA enrichment
  18. 2026-08-06 21:18 UTCGHSA enrichment
  19. 2026-08-05 19:35 UTCEG score recompute
  20. 2026-08-05 19:35 UTCGHSA enrichment
  21. 2026-08-05 19:17 UTCEPSS rescore
  22. 2026-08-04 23:04 UTCEG score recompute
  23. 2026-08-04 23:04 UTCGHSA enrichment
  24. 2026-08-04 15:10 UTCEPSS rescore
  25. 2026-08-04 10:39 UTCEPSS rescore
  26. 2026-08-03 18:42 UTCGHSA enrichment
  27. 2026-08-02 15:38 UTCGHSA enrichment
  28. 2026-08-01 13:55 UTCGHSA enrichment
  29. 2026-07-31 05:51 UTCEG score recompute
  30. 2026-07-31 05:51 UTCGHSA enrichment
  31. 2026-07-30 16:28 UTCEPSS rescore
  32. 2026-07-29 11:48 UTCEG score recompute
  33. 2026-07-29 11:48 UTCGHSA enrichment
  34. 2026-07-28 15:37 UTCEPSS rescore
  35. 2026-07-27 09:20 UTCEG score recompute
  36. 2026-07-27 09:20 UTCGHSA enrichment
  37. 2026-07-26 14:54 UTCEPSS rescore
  38. 2026-07-26 14:54 UTCEPSS rescore
  39. 2026-07-26 07:37 UTCEG score recompute
  40. 2026-07-26 07:37 UTCGHSA enrichment
  41. 2026-07-25 14:18 UTCEPSS rescore
  42. 2026-07-24 14:17 UTCEPSS rescore
  43. 2026-07-23 03:17 UTCEG score recompute
  44. 2026-07-22 14:08 UTCEPSS rescore
  45. 2026-07-16 01:49 UTCGHSA enrichment
  46. 2026-07-14 13:55 UTCGHSA enrichment
  47. 2026-07-11 17:23 UTCGHSA enrichment
  48. 2026-07-08 17:17 UTCGHSA enrichment
  49. 2026-07-02 03:48 UTCGHSA enrichment
  50. 2026-07-01 01:28 UTCGHSA enrichment
  51. 2026-06-29 21:29 UTCGHSA enrichment
  52. 2026-06-28 19:46 UTCGHSA enrichment
  53. 2026-06-27 17:58 UTCGHSA enrichment
  54. 2026-06-26 16:10 UTCGHSA enrichment
  55. 2026-06-25 06:19 UTCGHSA enrichment
  56. 2026-06-24 02:49 UTCGHSA enrichment
  57. 2026-06-18 04:08 UTCGHSA enrichment
  58. 2026-06-17 02:25 UTCGHSA enrichment
  59. 2026-06-16 00:42 UTCGHSA enrichment
  60. 2026-06-14 23:18 UTCEPSS rescore
  61. 2026-06-14 22:59 UTCGHSA enrichment
  62. 2026-06-13 23:00 UTCEPSS rescore
  63. 2026-06-13 21:17 UTCGHSA enrichment
  64. 2026-06-12 23:12 UTCEPSS rescore
  65. 2026-06-12 19:33 UTCGHSA enrichment
  66. 2026-06-11 17:50 UTCGHSA enrichment
  67. 2026-06-10 16:07 UTCGHSA enrichment
  68. 2026-06-09 14:25 UTCGHSA enrichment
  69. 2026-06-08 12:41 UTCGHSA enrichment
  70. 2026-06-07 10:59 UTCGHSA enrichment
  71. 2026-06-06 09:17 UTCGHSA enrichment
  72. 2026-06-05 07:33 UTCGHSA enrichment
  73. 2026-06-04 05:51 UTCGHSA enrichment
  74. 2026-06-03 04:08 UTCGHSA enrichment
  75. 2026-06-02 02:25 UTCGHSA enrichment

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 August 5, 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 98.8% 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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