CVE-2024-42381

HIGHNVD 8.38.3—
EchelonGraph scoreMEDIUM confidence

Score 8.3 from GitHub Security Advisory (severity: HIGH) published 2024-07-31. NVD baseline CVSS 8.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
8.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 8.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

os/linux/elf.rb in Homebrew brew before 4.2.20 uses ldd to load ELF files obtained from untrusted sources, which allows attackers to achieve code execution via an ELF file with a custom .interp section. NOTE: this code execution would occur during an un-sandboxed binary relocation phase, which occurs before a user would expect execution of downloaded package content. (237d1e783f7ee261beaba7d3f6bde22da7148b0a was the tested vulnerable version.)

CVSS v3
8.3
EG Score
8.3HIGHmedium confidence
EG Risk
38
EG Risk 38/100CISA SSVC

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
Severity83% × 45%
Exploitation1% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.6%
EPSS %ILE
49th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

July 31, 2024

Last Modified

April 15, 2026

Advisory Details (7)

Auto-updated Sep 6, 2026
Patch available. Sources: github_commit, github_pr, github_release.
generic

publications/reviews/2023-08-28-homebrew-securityreview.pdf at master · trailofbits/publications · GitHub

https://github.com/trailofbits/publications/blob/master/reviews/2023-08-28-homebrew-securityreview.pdf
generic

GitHub - Homebrew/brew at 237d1e783f7ee261beaba7d3f6bde22da7148b0a · GitHub

https://github.com/Homebrew/brew/tree/237d1e783f7ee261beaba7d3f6bde22da7148b0a
github_release Patch Available

4.2.20

Patch available: Homebrew/brew 4.2.20

https://github.com/Homebrew/brew/releases/tag/4.2.20
github_pr Patch Available

Revert "Revert "os/linux/elf: avoid using ldd for listing dynamic dependencies""

Patch available: Homebrew/brew 5.1.9 (PR #17136 merged 2024-04-23)

https://github.com/Homebrew/brew/pull/17136
github_commit Patch Available

commit 916b37388d38 (Homebrew/brew)

Patch available: Homebrew/brew 5.1.9 (contains commit 916b37388d38)

https://github.com/Homebrew/brew/commit/916b37388d3851a8a93a8e9b4adc38873680ead7
generic

Homebrew: 2023 Security Audit

https://brew.sh/2024/07/30/homebrew-security-audit/
generic

Our audit of Homebrew - The Trail of Bits Blog

https://blog.trailofbits.com/2024/07/30/our-audit-of-homebrew/

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 33× 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 200 total refreshes for this CVE.

  1. 2026-10-09 20:05 UTCEPSS rescore
  2. 2026-10-08 17:08 UTCEPSS rescore
  3. 2026-10-07 23:46 UTCEPSS rescore
  4. 2026-10-07 10:05 UTCOSV refresh
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  9. 2026-10-01 19:48 UTCEPSS rescore
  10. 2026-09-30 19:51 UTCEG score recompute
  11. 2026-09-30 15:01 UTCEPSS rescore
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  25. 2026-09-17 15:50 UTCOSV refresh
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  1. 2026-09-16 14:06 UTCEPSS rescore
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  8. 2026-09-11 09:35 UTCEPSS rescore
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  18. 2026-08-30 19:16 UTCEPSS rescore
  19. 2026-08-29 16:13 UTCOSV refresh
  20. 2026-08-28 21:39 UTCEPSS rescore
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  22. 2026-08-25 13:47 UTCEPSS rescore
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  27. 2026-08-19 17:02 UTCEPSS rescore
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  34. 2026-08-13 03:31 UTCOSV refresh
  35. 2026-08-12 13:49 UTCEPSS rescore
  36. 2026-08-11 13:40 UTCEPSS rescore
  37. 2026-08-10 23:58 UTCEPSS rescore
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  42. 2026-08-05 19:16 UTCEPSS rescore
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  44. 2026-08-04 10:36 UTCEPSS rescore
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  48. 2026-07-30 16:26 UTCEPSS rescore
  49. 2026-07-30 01:29 UTCEPSS rescore
  50. 2026-07-28 15:34 UTCEPSS rescore
  51. 2026-07-28 11:20 UTCOSV refresh
  52. 2026-07-27 14:11 UTCEPSS rescore
  53. 2026-07-26 14:53 UTCEPSS rescore
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  55. 2026-07-25 14:16 UTCEPSS rescore
  56. 2026-07-24 14:16 UTCEPSS rescore
  57. 2026-07-23 14:17 UTCEPSS rescore
  58. 2026-07-23 02:39 UTCEG score recompute
  59. 2026-07-22 14:07 UTCEPSS rescore
  60. 2026-07-21 15:23 UTCEPSS rescore
  61. 2026-07-21 15:23 UTCEPSS rescore
  62. 2026-07-20 17:06 UTCEPSS rescore
  63. 2026-07-19 14:30 UTCEPSS rescore
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  65. 2026-07-19 02:28 UTCEPSS rescore
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  67. 2026-07-18 10:03 UTCEPSS rescore
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  69. 2026-07-16 17:02 UTCEPSS rescore
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  74. 2026-07-13 22:29 UTCEPSS rescore
  75. 2026-07-13 06:12 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2024-42381?
CVE-2024-42381 is a high vulnerability published on July 31, 2024. os/linux/elf.rb in Homebrew brew before 4.2.20 uses ldd to load ELF files obtained from untrusted sources, which allows attackers to achieve code execution via an ELF file with a custom .interp section. NOTE: this code execution would occur during an un-sandboxed binary relocation phase, which…
When was CVE-2024-42381 disclosed?
CVE-2024-42381 was first published on July 31, 2024, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-42381 actively exploited?
CVE-2024-42381 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (49th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2024-42381?
CVE-2024-42381 has a CVSS v3 base score of 8.3 (NVD).
How do I remediate CVE-2024-42381?
A fix for CVE-2024-42381 is available: update to the fixed version the vendor names in its advisory.

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