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.
CVE-2024-38366
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).
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- 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 computedSeverity100% × 45%Exploitation40% × 40%Automatability0% × 15%Action: Watch closely — could escalate to Attend. - EPSS PROB
- 18%
- EPSS %ILE
- 97%
- KEV
- Not listed
Published
July 1, 2024
Last Modified
November 21, 2024
Advisory Details (3)
Auto-updated Sep 19, 2026Trunk RCE in email verification system rfc-822 · Advisory · CocoaPods/CocoaPods · GitHub
https://github.com/CocoaPods/CocoaPods/security/advisories/GHSA-x2x4-g675-qg7cVulnerabilities 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-serverCocoaPods Trunk: 3 Remote Code Execution found, 2023 - CocoaPods Blog
https://blog.cocoapods.org/CocoaPods-Trunk-RCEs-2023Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 5× in last 7d / 28× 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 132 total refreshes for this CVE.
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Frequently asked(5)
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Dependency Blast Radius
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