CVE-2021-23135

lowpriority · track · 22EPSS 0.002 · 14 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.23% (14th) EPSS

CVSS 2.1 · low

Is it mine?

6 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · osv · nvd

EPSS · scored 2026-10-27

Exposure of System Data to an Unauthorized Control Sphere vulnerability in web UI of Argo CD allows attacker to cause leaked secret data into web UI error messages and logs. This issue affects Argo CD 1.8 versions prior to 1.8.7; 1.7 versions prior to 1.7.14.

cvss

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

5.9

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 2.1–5.9

v2.02.1lowAV:L/AC:L/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 2.9

v3.15.5mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 1.8 · impact 3.6

v3.15.9mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:Nsecondary · ENISA EU

v3.15.9mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:Nsecondary · psirt@paloaltonetworks.comexploitability 1.5 · impact 4

v3.15.1mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-209USprimaryCWE-497US

affected products (6)

Products and version ranges known to be affected.

Argo CD Argo CD1.7 → 1.7.14enisa_euvdEU
Argo CD Argo CD1.8 → 1.8.7enisa_euvdEU
argoproj argo cd1.7.0 → 1.7.14nvdUScpe:2.3:a:argoproj:argo_cd:*:*:*:*:*:*:*:*
argoproj argo cd1.8.0 → 1.8.7nvdUScpe:2.3:a:argoproj:argo_cd:*:*:*:*:*:*:*:*
Bitnami argo-cd1.7.0 → 1.7.14osvUSpkg:bitnami/argo-cd
Bitnami argo-cd1.8.0 → 1.8.7osvUSpkg:bitnami/argo-cd

advisories (1)

Vendor and ecosystem advisories describing this.

BIT-argo-cd-2021-231352024-03-06vendor · osvUS
Exposure of System Data to an Unauthorized Control Sphere vulnerability in web UI of Argo CD allows attacker to cause leaked secret data into web UI error messages and logs. This issue affects Argo CD 1.8 versions prior to 1.8.7; 1.7 versions prior to 1.7.14.

also known as (3)

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 2021-05-12modified 2026-06-17

related (941)

Related entries.

ID	severity	EPSS	exploitable	published
CVE-2025-47813US	—OT critical	62.5% (99th)	KEV	2025-07-10
loginok.html in Wing FTP Server before 7.4.4 discloses the full local installation path of the application when using a long value in the UID cookie.
CVE-2024-29059US	—OT critical	98.6% (100th)	KEV	2024-03-23
.NET Framework Information Disclosure Vulnerability
CVE-2013-7331US	medium4.3OT critical	50.2% (99th)	KEV	2014-02-26
The Microsoft.XMLDOM ActiveX control in Microsoft Windows 8.1 and earlier allows remote attackers to determine the existence of local pathnames, UNC share pathnames, intranet hostn…
CVE-2021-22145US	medium6.5	76.2% (100th)	Exploit	2021-07-21
A memory disclosure vulnerability was identified in Elasticsearch 7.10.0 to 7.13.3 error reporting. A user with the ability to submit arbitrary queries to Elasticsearch could submi…
CVE-2025-62168US	high7.5	63.4% (99th)	Exploit	2025-10-17
Squid is a caching proxy for the Web. In Squid versions prior to 7.2, a failure to redact HTTP authentication credentials in error handling allows information disclosure. The vulne…

+936 more

references (4)

External citations — patches, advisories, analysis.

scry

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

Free scan