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Fencer Vulns
critical 10.0

CVE-2024-38366 in the critical feed json

CoacoaPods trunk RCE in email verification system rfc-822

published 2024-07-01 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-37280

cvss
10.0
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
17.8%
EPSS 17.8% chance of exploitation in 30 days, percentile 97%
public exploits
0
none known

Summary

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.

Patch / fix

  • CocoaPods CocoaPods 001cc3a430e75a16307f5fd6cdff1363ad2f40f3

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
total
Assessed
2 y ago

Exploit prediction

17.79% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • evasec.webflow.io https://evasec.webflow.io/blog/eva-discovered-supply-chain-vulnerabities-in-cocoapods#2-remote-code-execution-on-the-cocoapods-trunk-server referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 10.0 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
NVD 3.1 10.0 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Affected products

  • CocoaPods CocoaPods

Classification

Weakness
  • CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.