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Fencer Intel
medium 5.9

CVE-2021-23135 json

Argo CD leaked secret data into error messages and logs on invalid edits via UI

published 5y ago modified 4mo ago also BIT-argo-cd-2021-23135 , EUVD-2021-10253 , GHSA-fp89-h8pj-8894

cvss
5.9
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 14%
public exploits
0
none known

Summary

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.

Patch / fix

  • bitnami argo-cd 1.7.14, 1.8.7
  • Argo CD Argo CD 1.7.14, 1.8.7

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Exploit prediction

0.23% chance of exploitation in the next 30 days, higher than 14% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 5.9 CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 2.1 AV:L/AC:L/Au:N/C:P/I:N/A:N
OSV 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected packages

ecosystem package affected fixed in
bitnami argo-cd
>=1.7.0, <1.7.14
>=1.8.0, <1.8.7
1.7.14
1.8.7

Affected products

  • Argo CD Argo CD

Classification

Weakness
  • CWE-497 Exposure of Sensitive System Information to an Unauthorized Control Sphere
  • CWE-209 Generation of Error Message Containing Sensitive Information

References

Sources

Fencer Intel 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.