CVE-2026-45737

MEDIUMNVD 6.56.3
EchelonGraph scoreLOW confidence

This medium-severity CVE scores 6.3 under the CNA's CVSS (NVD's own analysis pending). EPSS exploit probability: 0.0%, top 89% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: cna:github_m, epss
Trending — 3 sources updated this weekElevated
6.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.5Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. From 3.2.0 until 3.2.12, 3.3.10, and 3.4.2, Argo CD ServerSideDiff can expose Kubernetes Secret values embedded in the kubectl.kubernetes.io/last-applied-configuration annotation because HideSecretData(target, live, ...) does not fully sanitize ResourceDiff.TargetState and LiveState predicted live Secret objects, allowing sensitive data, stringData, and annotations to appear in UI or CLI diffs. This issue is fixed in versions 3.2.12, 3.3.10, and 3.4.2.

CVSS v3
6.5
EG Score
6.3(low)
EPSS
21.7%
KEV
Not listed

Published

May 19, 2026

Last Modified

July 20, 2026

Advisory Details (8)

Auto-updated Jul 15, 2026
🔬 Proof of concept available. Patch available. Sources: github_release, github, github_commit.
github Patch Available🟡 PoC Available

Kubernetes Secret Extraction via ArgoCD ServerSideDiff via sensitive annotations · Advisory · argoproj/argo-cd · GitHub

https://github.com/argoproj/argo-cd/security/advisories/GHSA-rg3g-4rw9-gqrp
github_release Patch Available

v3.4.2

Patch available: argoproj/argo-cd v3.4.2

https://github.com/argoproj/argo-cd/releases/tag/v3.4.2
github_release Patch Available

v3.3.10

Patch available: argoproj/argo-cd v3.3.10

https://github.com/argoproj/argo-cd/releases/tag/v3.3.10
github_release Patch Available

v3.2.12

Patch available: argoproj/argo-cd v3.2.12

https://github.com/argoproj/argo-cd/releases/tag/v3.2.12
github_commit

commit bcb4298afc9f (argoproj/argo-cd)

Fix landed in argoproj/argo-cd commit bcb4298afc9f — awaiting tagged release

https://github.com/argoproj/argo-cd/commit/bcb4298afc9fcff5f5d69f4e1db2d0a75983f42c
github_commit

commit ac11bec99868 (argoproj/argo-cd)

Fix landed in argoproj/argo-cd commit ac11bec99868 — awaiting tagged release

https://github.com/argoproj/argo-cd/commit/ac11bec9986807adc8886ef1181eced7347ef5c6
github_commit

commit 87e914832074 (argoproj/argo-cd)

Fix landed in argoproj/argo-cd commit 87e914832074 — awaiting tagged release

https://github.com/argoproj/argo-cd/commit/87e9148320749693624d08e3d6fa2cc217c672a0
github_commit

commit 7879e6322465 (argoproj/argo-cd)

Fix landed in argoproj/argo-cd commit 7879e6322465 — awaiting tagged release

https://github.com/argoproj/argo-cd/commit/7879e6322465080a82d152bf00f2b92e0f36c658

Vendor Advisories for CVE-2026-45737(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
Go(1)
PackageVulnerable rangeFixed inDependents
github.com/argoproj/argo-cd/v3—3.4.2—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 8× in last 7d / 8× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-22 14:08 UTCEPSS rescore
  2. 2026-07-20 17:08 UTCEPSS rescore
  3. 2026-07-20 03:15 UTCNVD updateCVSS v3 → 6.5
  4. 2026-07-19 14:31 UTCEPSS rescore
  5. 2026-07-19 02:29 UTCEPSS rescore
  6. 2026-07-18 10:04 UTCEPSS rescore
  7. 2026-07-17 23:59 UTCOSV refresh
  8. 2026-07-16 17:03 UTCEPSS rescore
  9. 2026-06-14 23:18 UTCEPSS rescore
  10. 2026-06-13 23:00 UTCEPSS rescore
  11. 2026-06-12 23:12 UTCEPSS rescore
  12. 2026-05-24 06:14 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-45737?
CVE-2026-45737 is a medium vulnerability published on May 19, 2026. Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. From 3.2.0 until 3.2.12, 3.3.10, and 3.4.2, Argo CD ServerSideDiff can expose Kubernetes Secret values embedded in the kubectl.kubernetes.io/last-applied-configuration annotation because HideSecretData(target, live, ...) does…
When was CVE-2026-45737 disclosed?
CVE-2026-45737 was first published in the National Vulnerability Database on May 19, 2026, with the most recent update on July 20, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-45737 actively exploited?
CVE-2026-45737 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 21.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-45737?
CVE-2026-45737 has a CVSS v3 base score of 6.5 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 6.3. The EG score is currently aggregating — additional source signals are being incorporated as they become available..
How do I remediate CVE-2026-45737?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-45737, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-45737

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