Public proof of concept

CVE-2019-15224

A public proof of concept exists; no exploitation attested.

Published2019-08-19
WeaknessCWE-94

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

The rest-client gem 1.6.10 through 1.6.13 for Ruby, as distributed on RubyGems.org, included a code-execution backdoor inserted by a third party. Versions <=1.6.9 and >=1.6.14 are unaffected.

Timeline

dates in UTC

2019-08-1923:15CVE publishedNVD
2026-10-2319:23First public proof of conceptPoC-in-GitHub

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2019-15224?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2019-15224?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

OSV · NVD

cron_parser

Branch	Affected	Fixed in	Source
1.0	≥ 1.0.13, ≤ 1.0.14	no fix published	OSV
—	all versions	no fix published	OSV

Rest-client project rest-client

Branch	Affected	Fixed in	Source
1.6	≥ 1.6.10, ≤ 1.6.13	no fix published	NVD

awesome-bot

Branch	Affected	Fixed in	Source
—	all versions	no fix published	OSV

8 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

No fix published by the sources we read yet. NVD record

Detection

read 2026-10-23 19:23 UTC

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: 1 repository, unverifiedchef-cft/inspec_cve_2019_15224

Sources

NVDCVSS 3.09.8read 2026-10-23
NVDCVSS 2.07.5read 2026-10-23
NVDweakness (CWE)CWE-94read 2026-10-23
FIRST EPSSEPSS score3.6 %2026-10-23
PoC-in-GitHubproof of concept1read 2026-10-23
OSVaffected packages—

Technical details

CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2019-08-19
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2019-15224?

The rest-client gem 1.6.10 through 1.6.13 for Ruby, as distributed on RubyGems.org, included a code-execution backdoor inserted by a third party. Versions <=1.6.9 and >=1.6.14 are unaffected.

Is CVE-2019-15224 actively exploited?

Active exploitation of CVE-2019-15224 has not been confirmed. Its EPSS score was 3.6% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-15224?

CVE-2019-15224 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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