CVE-2024-38366

CRITICALNVD 10.010.0—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 10.0 under NVD CVSS v3. EPSS exploit probability: 17.8%, top 3% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
10.0
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 18%CVSS: 10.0Exploit: NoneExposed: 0

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

trunk.cocoapods.org is the authentication server for the CoacoaPods dependency manager. The part of trunk which verifies whether a user has a real email address on signup used a rfc-822 library which executes a shell command to validate the email domain MX records validity. It works via an DNS MX. This lookup could be manipulated to also execute a command on the trunk server, effectively giving root access to the server and the infrastructure. This issue was patched server-side with commit 001cc3a430e75a16307f5fd6cdff1363ad2f40f3 in September 2023. This RCE triggered a full user-session reset, as an attacker could have used this method to write to any Podspec in trunk.

CVSS v3
10.0
EG Score
10.0(medium)
EG Risk
61(Track*)
EG Risk 61/100SSVC: 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
Severity100% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS
96.9%
KEV
Not listed

Published

July 1, 2024

Last Modified

November 21, 2024

Advisory Details (3)

Auto-updated Jul 18, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: github.
github Patch Available

Trunk RCE in email verification system rfc-822 · Advisory · CocoaPods/CocoaPods · GitHub

https://github.com/CocoaPods/CocoaPods/security/advisories/GHSA-x2x4-g675-qg7c
generic🔴 Active Exploitation

Vulnerabilities in CocoaPods Open the Door to Supply Chain Attacks Against Thousands of iOS and MacOS Applications

https://evasec.webflow.io/blog/eva-discovered-supply-chain-vulnerabities-in-cocoapods#2-remote-code-execution-on-the-cocoapods-trunk-server
generic

CocoaPods Trunk: 3 Remote Code Execution found, 2023 - CocoaPods Blog

https://blog.cocoapods.org/CocoaPods-Trunk-RCEs-2023

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 39× 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. 2026-07-23 14:17 UTCEPSS rescore
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  3. 2026-07-23 02:38 UTCEG score recompute
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  51. 2026-05-26 07:18 UTCEPSS rescore
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  53. 2026-05-26 07:18 UTCEPSS rescore
  54. 2026-05-23 23:05 UTCEG score recompute

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Frequently asked(5)

What is CVE-2024-38366?
CVE-2024-38366 is a critical vulnerability published on July 1, 2024. trunk.cocoapods.org is the authentication server for the CoacoaPods dependency manager. The part of trunk which verifies whether a user has a real email address on signup used a rfc-822 library which executes a shell command to validate the email domain MX records validity. It works via an DNS MX.…
When was CVE-2024-38366 disclosed?
CVE-2024-38366 was first published in the National Vulnerability Database on July 1, 2024, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-38366 actively exploited?
CVE-2024-38366 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 96.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2024-38366?
CVE-2024-38366 has a CVSS v3 base score of 10.0 (NVD).
How do I remediate CVE-2024-38366?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-38366, 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.

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