CVE-2021-37914

mediumpriority · track · 26EPSS 0.010 · 61 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.96% (61st) EPSS

CVSS 5.8 · medium

Is it mine?

6 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · osv · nvd

EPSS · scored 2026-10-27

In Argo Workflows through 3.1.3, if EXPRESSION_TEMPLATES is enabled and untrusted users are allowed to specify input parameters when running workflows, an attacker may be able to disrupt a workflow because expression template output is evaluated.

cvss

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

6.5

010

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

v2.05.8mediumAV:N/AC:M/Au:N/C:N/I:P/A:Pprimary · NVD / NIST USexploitability 8.6 · impact 4.9

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:Lprimary · NVD / NIST USexploitability 3.9 · impact 2.5

v3.16mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USprimaryCWE-20US

affected products (6)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
argoproj argo workflows≤ 3.1.3nvdUScpe:2.3:a:argoproj:argo_workflows:*:*:*:*:*:*:*:*
Bitnami argo-workflows< 3.1.4osvUSpkg:bitnami/argo-workflows
Go github.com/argoproj/argo-workflowsall versionsosvUSpkg:golang/github.com/argoproj/argo-workflows
Go github.com/argoproj/argo-workflows/v2all versionsosvUSpkg:golang/github.com/argoproj/argo-workflows/v2
Go github.com/argoproj/argo-workflows/v33.1.0 → 3.1.6osvUSpkg:golang/github.com/argoproj/argo-workflows/v3

advisories (3)

Vendor and ecosystem advisories describing this.

GHSA-h563-xh25-x54qWorkflow re-write vulnerability using input parameter2021-08-09ghsa · osvUS
### Impact * Allow end-users to set input parameters, but otherwise expect workflows to be secure. ### Patches Not yet. ### Workarounds * Set `EXPRESSION_TEMPLATES=false` for the workflow controller ### References * https://github.com/argoproj/argo-workflows/issues/6441 ### For more information If you have any questions or comments about this advisory: * Open an issue in [example link to repo](http://example.com) * Email us at [example email address](mailto:example@example.com)
BIT-argo-workflows-2021-379142024-03-06vendor · osvUS
In Argo Workflows through 3.1.3, if EXPRESSION_TEMPLATES is enabled and untrusted users are allowed to specify input parameters when running workflows, an attacker may be able to disrupt a workflow because expression template output is evaluated.
GO-2022-0928Workflow re-write vulnerability using input parameter in github.com/argoproj/argo-workflows2024-08-21vendor · osvUS
Workflow re-write vulnerability using input parameter in github.com/argoproj/argo-workflows

also known as (6)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd osv nvd NVD CVE.org MITRE

published 2021-08-03modified 2026-06-17

related (25,176)

Related entries.

ID	severity	EPSS	exploitable	published
CVE-2026-88771US	critical9.8OT critical	82.2% (100th)	KEV	2026-09-27
Improper input validation vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway. This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS,…
CVE-2026-93952US	—OT critical	1.38% (72nd)	KEV	2026-09-22
VeloCloud Orchestrator (VCO) on-prem has a security issue where this issue may allow a remote attacker to access privileged internal functionality and impact the VCO host. Successf…
CVE-2026-12569US	critical9.8OT critical	46.0% (99th)	KEV	2026-06-18
A critical remote code execution (RCE) vulnerability has been reported in PTC Windchill PDMlink and PTC FlexPLM. The vulnerability may be exploited through the deserialization of u…
CVE-2026-34910US	—OT critical	90.0% (100th)	KEV	2026-05-22
A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS devices to execute a Command Injection.
CVE-2026-6973US	—OT critical	34.5% (98th)	KEV	2026-05-07
An Improper Input Validation in Ivanti EPMM before versions 12.6.1.1, 12.7.0.1, and 12.8.0.1 allows a remotely authenticated user with administrative access to achieve remote code…

+25171 more

references (7)

External citations — patches, advisories, analysis.

https://github.com/argoproj/argo-workflows/issues/6441 cnnvd
https://github.com/argoproj/argo-workflows/pull/6442 cnnvd
https://nvd.nist.gov/vuln/detail/CVE-2021-37914 cnnvd
https://github.com/argoproj/argo-workflows/issues/6441 enisa_euvd
https://github.com/argoproj/argo-workflows/pull/6442 enisa_euvd
https://github.com/argoproj/argo-workflows/issues/6441ExploitIssue TrackingThird Party Advisorynvd
https://github.com/argoproj/argo-workflows/pull/6442ExploitPatchThird Party Advisorynvd

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan