Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. Prior to 3.2.12, 3.3.10, and 3.4.2, Argo CD users with application write access can set link.argocd.argoproj.io/* annotations whose pipe-separated values are rendered by ui/src/app/applications/components/application-summary/application-summary.tsx in the Summary tab URLs section as anchor href values without URL validation, allowing javascript: execution in a higher-privileged user's authenticated Argo CD origin session. This issue is fixed in versions 3.2.12, 3.3.10, and 3.4.2.
CVE-2026-45738
HIGHNVD 8.77.3Trending — 3 sources updated this weekElevated
EchelonGraph scoreLOW confidence
This high-severity CVE scores 7.3 under the CNA's CVSS (NVD's own analysis pending). EPSS exploit probability: 0.0%, top 88% 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
8.7
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.7Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 8.7
- EG Score
- 7.3(low)
- EPSS
- 25.3%
- KEV
- Not listed
Published
May 19, 2026
Last Modified
July 20, 2026
Advisory Details (7)
Auto-updated Jul 15, 2026🔬 Proof of concept available. Patch available. Sources: github_commit, github_release, github.
github Patch Available🟡 PoC Available
Stored XSS in application link annotations enables developer-to-admin privilege escalation · Advisory · argoproj/argo-cd · GitHub
https://github.com/argoproj/argo-cd/security/advisories/GHSA-h98r-wv3h-fr38github_release Patch Available
v3.4.2
Patch available: argoproj/argo-cd v3.4.2
https://github.com/argoproj/argo-cd/releases/tag/v3.4.2github_release Patch Available
v3.3.10
Patch available: argoproj/argo-cd v3.3.10
https://github.com/argoproj/argo-cd/releases/tag/v3.3.10github_release Patch Available
v3.2.12
Patch available: argoproj/argo-cd v3.2.12
https://github.com/argoproj/argo-cd/releases/tag/v3.2.12github_commit
commit c8df5ff7acc4 (argoproj/argo-cd)
Fix landed in argoproj/argo-cd commit c8df5ff7acc4 — awaiting tagged release
https://github.com/argoproj/argo-cd/commit/c8df5ff7acc403adcee1256da5d87081cd52f0a6github_commit
commit 35ea43c537d6 (argoproj/argo-cd)
Fix landed in argoproj/argo-cd commit 35ea43c537d6 — awaiting tagged release
https://github.com/argoproj/argo-cd/commit/35ea43c537d6e8948e67f347317fc4f88b325122github_commit
commit 00f83c41dcfd (argoproj/argo-cd)
Fix landed in argoproj/argo-cd commit 00f83c41dcfd — awaiting tagged release
https://github.com/argoproj/argo-cd/commit/00f83c41dcfd879f34f8e0248c860d704b41cf0fVendor Advisories for CVE-2026-45738(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Affected Packages
(3 across 1 ecosystem)
Go(3)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| github.com/argoproj/argo-cd | — | — | — |
| github.com/argoproj/argo-cd/v2 | — | — | — |
| github.com/argoproj/argo-cd/v3 | — | 3.4.2 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 9× in last 7d / 9× 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.
- 2026-07-22 14:08 UTCEPSS rescore
- 2026-07-21 15:24 UTCEPSS rescore
- 2026-07-20 17:08 UTCEPSS rescore
- 2026-07-20 03:15 UTCNVD updateCVSS v3 → 8.7
- 2026-07-19 14:31 UTCEPSS rescore
- 2026-07-19 02:29 UTCEPSS rescore
- 2026-07-18 10:04 UTCEPSS rescore
- 2026-07-17 23:59 UTCOSV refresh
- 2026-07-16 17:03 UTCEPSS rescore
- 2026-06-14 23:18 UTCEPSS rescore
- 2026-06-13 23:00 UTCEPSS rescore
- 2026-06-12 23:12 UTCEPSS rescore
- 2026-05-24 06:14 UTCEG score recompute
Related CVEs(same CWE)
Frequently asked(5)
What is CVE-2026-45738?
CVE-2026-45738 is a high vulnerability published on May 19, 2026. Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. Prior to 3.2.12, 3.3.10, and 3.4.2, Argo CD users with application write access can set link.argocd.argoproj.io/* annotations whose pipe-separated values are rendered by…
When was CVE-2026-45738 disclosed?
CVE-2026-45738 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-2026-45738 actively exploited?
CVE-2026-45738 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 25.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-45738?
CVE-2026-45738 has a CVSS v3 base score of 8.7 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 7.3. The EG score is currently aggregating — additional source signals are being incorporated as they become available..
How do I remediate CVE-2026-45738?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-45738, 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-2026-45738
Is Your Infrastructure Affected by CVE-2026-45738?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.