CVE-2025-55191: Github.com/argoproj/argo cd/v2 Repository Credentials Race Condition Crashes Vulnerability

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-g88p-r42r-ppp9",
  "modified" : "2025-10-23T20:20:45Z",
  "published" : "2025-09-30T18:01:48Z",
  "aliases" : [ "CVE-2025-55191" ],
  "summary" : "Repository Credentials Race Condition Crashes Argo CD Server",
  "details" : "### Summary\n\nA race condition in the repository credentials handler can cause the Argo CD server to panic and crash when concurrent operations are performed on the same repository URL.\n\n### Details\nThe vulnerability is located in numerous repository related handlers in the `util/db/repository_secrets.go` file. For example, in the `secretToRepoCred` function. The issue manifests as a concurrent map access panic:\n\n```\nconcurrent map read and map write\n...\ngoroutine 1104 [running]:\ngithub.com/argoproj/argo-cd/v2/util/db.(*secretsRepositoryBackend).secretToRepoCred(0xc000e50ea8?, 0xc000c65540)\n        /go/src/github.com/argoproj/argo-cd/util/db/repository_secrets.go:404 +0x31e\n```\n\nThe race condition occurs due to:\n1. Concurrent repository credential operations (create/update/delete) accessing the same map\n2. Kubernetes informer re-syncs happening simultaneously\n3. Background watchers updating the same secret data\n4. No mutex protection for map access\n\nA valid API token with `repositories` resource permissions (`create`, `update`, or `delete` actions) is required to trigger the race condition.\n\n### Impact\n\nThis vulnerability causes the entire Argo CD server to crash and become unavailable. Attackers can repeatedly and continuously trigger the race condition to maintain a denial-of-service state, disrupting all GitOps operations. Default ArgoCD configuration is vulnerable.\n\nThe affected code was originally introduced in [PR #6103](https://github.com/argoproj/argo-cd/pull/6103) and released in [v2.1.0](https://github.com/argoproj/argo-cd/releases/tag/v2.1.0).\n\nThis data race was addressed by deep-copying the `Secret` objects before reading/writing.\n\n### Credits\n\nThis vulnerability was found, reported and fixed by:\n\n@thevilledev\n\nThe Argo team would like to thank him for his responsible disclosure and constructive communications during the resolve of this issue.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/argoproj/argo-cd/v2"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.1.0"
      }, {
        "fixed" : "2.14.20"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 2.14.19"
    }
  }, {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/argoproj/argo-cd/v3"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "3.2.0-rc1"
      }, {
        "fixed" : "3.2.0-rc2"
      } ]
    } ],
    "versions" : [ "3.2.0-rc1" ]
  }, {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/argoproj/argo-cd/v3"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "3.1.0-rc1"
      }, {
        "fixed" : "3.1.8"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 3.1.7"
    }
  }, {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/argoproj/argo-cd/v3"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "3.0.0-rc1"
      }, {
        "fixed" : "3.0.19"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 3.0.18"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/argoproj/argo-cd/security/advisories/GHSA-g88p-r42r-ppp9"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-55191"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/argoproj/argo-cd/pull/6103"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/argoproj/argo-cd/commit/701bc50d01c752cad96185f848088d287a97c7b7"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/argoproj/argo-cd"
  }, {
    "type" : "WEB",
    "url" : "https://pkg.go.dev/vuln/GO-2025-3994"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-362" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-09-30T18:01:48Z",
    "nvd_published_at" : "2025-09-30T23:15:29Z"
  }
}