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CVE-2019-10754

Status: ModifiedHigh (8.1)—

Multiple classes used within Apereo CAS before release 6.1.0-RC5 makes use of apache commons-lang3 RandomStringUtils for token and ID generation which makes them predictable due to RandomStringUtils PRNG's algorithm not being cryptographically strong.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Apereo — Central Authentication Service

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2019-10754",
  "cveTags": [],
  "metrics": {
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:N",
          "authentication": "SINGLE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 4.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
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    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8.1,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.2,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "report@snyk.io",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "Apereo CAS",
          "versions": [
            {
              "status": "affected",
              "version": "All versions prior to version 6.1.0-RC5"
            }
          ]
        }
      ]
    }
  ],
  "published": "2019-09-23T23:15:10.640",
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    {
      "url": "https://snyk.io/vuln/SNYK-JAVA-ORGAPEREOCAS-467402",
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      "tags": [
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    },
    {
      "url": "https://snyk.io/vuln/SNYK-JAVA-ORGAPEREOCAS-467406",
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    },
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    {
      "url": "https://snyk.io/vuln/SNYK-JAVA-ORGAPEREOCAS-467404",
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "url": "https://snyk.io/vuln/SNYK-JAVA-ORGAPEREOCAS-468868",
      "tags": [
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        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "url": "https://snyk.io/vuln/SNYK-JAVA-ORGAPEREOCAS-468869",
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        "Patch",
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      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-338"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Multiple classes used within Apereo CAS before release 6.1.0-RC5 makes use of apache commons-lang3 RandomStringUtils for token and ID generation which makes them predictable due to RandomStringUtils PRNG's algorithm not being cryptographically strong."
    },
    {
      "lang": "es",
      "value": "Múltiples clases utilizadas dentro de Apereo CAS versiones anteriores a 6.1.0-RC5, hacen uso de RandomStringUtils de Apache commons-lang3 para la generación de tokens e ID, lo que los hace predecibles debido a que el algoritmo de RandomStringUtils PRNG no es criptográficamente fuerte."
    }
  ],
  "lastModified": "2026-06-17T02:11:36.467",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
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}