CVE-2026-45738
Argo CD: Stored XSS in application link annotations enables developer-to-admin privilege escalation
Description
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.
INFO
Published Date :
July 15, 2026, 8:17 p.m.
Last Modified :
July 20, 2026, 2:06 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-45738
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update Argo CD to version 3.2.12 or later.
- Update Argo CD to version 3.3.10 or later.
- Update Argo CD to version 3.4.2 or later.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-45738.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-45738 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-45738
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-45738 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-45738 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Jul. 20, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N Added CPE Configuration OR *cpe:2.3:a:argoproj:argo_cd:*:*:*:*:*:*:*:* versions up to (excluding) 3.2.12 *cpe:2.3:a:argoproj:argo_cd:*:*:*:*:*:*:*:* versions from (including) 3.3.0 up to (excluding) 3.3.10 *cpe:2.3:a:argoproj:argo_cd:*:*:*:*:*:*:*:* versions from (including) 3.4.0 up to (excluding) 3.4.2 Added Reference Type GitHub, Inc.: https://github.com/argoproj/argo-cd/commit/00f83c41dcfd879f34f8e0248c860d704b41cf0f Types: Patch Added Reference Type GitHub, Inc.: https://github.com/argoproj/argo-cd/commit/35ea43c537d6e8948e67f347317fc4f88b325122 Types: Patch Added Reference Type GitHub, Inc.: https://github.com/argoproj/argo-cd/commit/c8df5ff7acc403adcee1256da5d87081cd52f0a6 Types: Patch Added Reference Type GitHub, Inc.: https://github.com/argoproj/argo-cd/releases/tag/v3.2.12 Types: Release Notes Added Reference Type GitHub, Inc.: https://github.com/argoproj/argo-cd/releases/tag/v3.3.10 Types: Release Notes Added Reference Type GitHub, Inc.: https://github.com/argoproj/argo-cd/releases/tag/v3.4.2 Types: Release Notes Added Reference Type GitHub, Inc.: https://github.com/argoproj/argo-cd/security/advisories/GHSA-h98r-wv3h-fr38 Types: Exploit, Vendor Advisory Added Reference Type CISA-ADP: https://github.com/argoproj/argo-cd/security/advisories/GHSA-h98r-wv3h-fr38 Types: Exploit, Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 16, 2026
Action Type Old Value New Value Added Reference https://github.com/argoproj/argo-cd/security/advisories/GHSA-h98r-wv3h-fr38 Added SSVC {'id': 'CVE-2026-45738', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-07-16T14:51:03.406825Z'} -
New CVE Received by [email protected]
Jul. 15, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'argoproj', 'product': 'argo-cd', 'versions': [{'status': 'affected', 'version': '< 3.2.12'}, {'status': 'affected', 'version': '>= 3.3.0, < 3.3.10'}, {'status': 'affected', 'version': '>= 3.4.0-rc1, < 3.4.2'}]}] Added Description 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. Added CVSS V3.1 AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N Added CWE CWE-79 Added Reference https://github.com/argoproj/argo-cd/commit/00f83c41dcfd879f34f8e0248c860d704b41cf0f Added Reference https://github.com/argoproj/argo-cd/commit/35ea43c537d6e8948e67f347317fc4f88b325122 Added Reference https://github.com/argoproj/argo-cd/commit/c8df5ff7acc403adcee1256da5d87081cd52f0a6 Added Reference https://github.com/argoproj/argo-cd/releases/tag/v3.2.12 Added Reference https://github.com/argoproj/argo-cd/releases/tag/v3.3.10 Added Reference https://github.com/argoproj/argo-cd/releases/tag/v3.4.2 Added Reference https://github.com/argoproj/argo-cd/security/advisories/GHSA-h98r-wv3h-fr38