7.3

CVE-2026-23960: argoproj argo_workflows Cross-site Scripting

CVSS: 7.3v4.0HighModified
AliasesCGA-29fv-3m29-gcxgCGA-338g-cprq-hh3jCGA-3pfx-5rp9-fghf
Published 21-01-2026Last modified 15-07-2026
Open JSON

Vulnerability summary

CVE-2026-23960 is a high (CVSS 7.3) Cross-site Scripting vulnerability in argoproj argo_workflows. EPSS estimates a 0.41% chance of exploitation in the next 30 days, higher than 34.3% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
39/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.3/10
010
High · v4.0 (CVE.org)
EPSS score
0.41%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Advisory lineage

Upstream 0 · Downstream 2 · Related 3
OPENSUSE-SU-2026:21483-1SUSE-SU-2026:0403-1CGA-994M-XQQ5-QXW4

Timeline

  1. 21-01-2026
    PublishedVulnerability first disclosed.
  2. 15-07-2026
    Last modifiedVulnerability information updated.

Description

Argo Workflows is an open source container-native workflow engine for orchestrating parallel jobs on Kubernetes. Prior to versions 3.6.17 and 3.7.8, stored XSS in the artifact directory listing allows any workflow author to execute arbitrary JavaScript in another user’s browser under the Argo Server origin, enabling API actions with the victim’s privileges. Versions 3.6.17 and 3.7.8 fix the issue.

CVSS metrics

7 scores · 5 sources · 2 versions

EPSS trend

Probability

0.41%

Chance of exploitation in the next 30 days

Percentile

34%

Versus all other CVEs

30-day change

+0.01 pp

From 0.40% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.41%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Argo Workflows

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Chainguard13 products
  • argo-workflow-controller-3.7< 3.7.8-r0
  • argo-workflow-controller-4.0< 4.0.2-r0
  • argo-workflow-controller-fips-4.0< 4.0.2-r0
  • argo-workflow-executor-3.7< 3.7.8-r0
  • argo-workflow-executor-4.0< 4.0.2-r0
Wolfi10 products
  • argo-workflow-controller-3.7< 3.7.8-r0
  • argo-workflow-controller-4.0< 4.0.2-r0
  • argo-workflow-executor-3.7< 3.7.8-r0
  • argo-workflow-executor-4.0< 4.0.2-r0
  • argo-workflows-3.7< 3.7.8-r0
Argoproj2 products
Github.com/argoproj/argo-workflows2 products
  • v2All versions (No fix recorded)
  • v3< 3.6.17 | ≥ 3.7.0, < 3.7.8
Github.com/argoproj1 product
  • argo-workflows≤ 2.5.3-rc4 | All versions (No fix recorded)

5 vendors · 28 products

References

11 links
Show all 11 references