CVE-2020-36327

highpriority · track · 37EPSS 0.063 · 94 %ileDEEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

6.31% (94th) EPSS

CVSS 9.3 · high

Is it mine?

12 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-26

Bundler 1.16.0 through 2.2.9 and 2.2.11 through 2.2.16 sometimes chooses a dependency source based on the highest gem version number, which means that a rogue gem found at a public source may be chosen, even if the intended choice was a private gem that is a dependency of another private gem that is explicitly depended on by the application. NOTE: it is not correct to use CVE-2021-24105 for every "Dependency Confusion" issue in every product.

cvss

Technical severity, 0–10. One row per scoring source.

9.3

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.09.3highAV:N/AC:M/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 8.6 · impact 10

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 5.9

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · OSV

v3.18.1highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-405USLLM-inferred

affected products (12)

Products and version ranges known to be affected.

Gentoo Linuxall versionscert_bundDEcpe:/o:gentoo:linux:-
Red Hat Enterprise Linux 8all versionscert_bundDEcpe:/o:redhat:enterprise_linux:8
Red Hat Enterprise Linux 8.1 Update Services for SAP Solutionsall versionscert_bundDEcpe:/o:redhat:enterprise_linux:8.1_update_services_for_sap_solutions
Red Hat Enterprise Linux 8.2 extended supportall versionscert_bundDEcpe:/o:redhat:enterprise_linux:8.2_extended_support
Red Hat Enterprise Linux 8.4 extended supportall versionscert_bundDEcpe:/o:redhat:enterprise_linux:8.4_extended_support
n/a n/a≤ n/aenisa_euvdEU
bundler bundler1.16.0 → 2.2.10nvdUScpe:2.3:a:bundler:bundler:*:*:*:*:*:*:*:*
bundler bundler2.2.11 → 2.2.16nvdUScpe:2.3:a:bundler:bundler:*:*:*:*:*:*:*:*
fedoraproject fedora= 34nvdUScpe:2.3:o:fedoraproject:fedora:*:*:*:*:*:*:*:*
microsoft package manager configurationsall versionsnvdUScpe:2.3:a:microsoft:package_manager_configurations:*:*:*:*:*:*:*:*
RubyGems bundler1.16.0 → 2.2.10osvUSpkg:gem/bundler
RubyGems bundler2.2.11 → 2.2.18osvUSpkg:gem/bundler

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2024-1808Red Hat Enterprise Linux: Schwachstelle ermöglicht CodeausführungDeutsch2022-02-16csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Red Hat Enterprise Linux ausnutzen, um beliebigen Programmcode auszuführen.
GHSA-fp4w-jxhp-m23pDependency Confusion in Bundler2021-05-24ghsa · osvUS
Bundler 1.16.0 through 2.2.9 and 2.2.11 through 2.2.17 sometimes chooses a dependency source based on the highest gem version number, which means that a rogue gem found at a public source may be chosen, even if the intended choice was a private gem that is a dependency of another private gem that is explicitly depended on by the application.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund nvd osv NVD CVE.org MITRE

published 2021-04-29modified 2026-06-17

references (39)

External citations — patches, advisories, analysis.

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