CVE-2026-41851 (GCVE-0-2026-41851)

Vulnerability from cvelistv5 – Published: 2026-06-09 03:51 – Updated: 2026-06-27 21:03
VLAI
Title
Spring Framework Denial of Service via Unbounded Cache in SpEL
Summary
Applications which accept user-supplied Spring Expression Language (SpEL) expressions may be vulnerable to a Denial of Service (DoS) attack if the evaluation of a SpEL expression triggers unbounded cache growth. Affected versions: Spring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18; 6.1.0 through 6.1.27; 5.3.0 through 5.3.48.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-09 13:34 UTC
CWE
  • CWE-770 - Allocation of Resources Without Limits or Throttling
References
Impacted products
Vendor Product Version CPE status
Spring Spring Framework Affected: 7.0.0 , < 7.0.7.1 (custom)
Affected: 6.2.0 , < 6.2.18.1 (custom)
Affected: 6.1.0 , < 6.1.28 (custom)
Affected: 5.3.0 , < 5.3.49 (custom)
guessed Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-41851",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-09T13:34:51.694460Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-06-09T13:34:58.008Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Spring Framework",
          "vendor": "Spring",
          "versions": [
            {
              "lessThan": "7.0.7.1",
              "status": "affected",
              "version": "7.0.0",
              "versionType": "custom"
            },
            {
              "lessThan": "6.2.18.1",
              "status": "affected",
              "version": "6.2.0",
              "versionType": "custom"
            },
            {
              "lessThan": "6.1.28",
              "status": "affected",
              "version": "6.1.0",
              "versionType": "custom"
            },
            {
              "lessThan": "5.3.49",
              "status": "affected",
              "version": "5.3.0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Applications which accept user-supplied Spring Expression Language (SpEL) expressions may be vulnerable to a Denial of Service (DoS) attack if the evaluation of a SpEL expression triggers unbounded cache growth.\n\nAffected versions:\nSpring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18; 6.1.0 through 6.1.27; 5.3.0 through 5.3.48."
            }
          ],
          "value": "Applications which accept user-supplied Spring Expression Language (SpEL) expressions may be vulnerable to a Denial of Service (DoS) attack if the evaluation of a SpEL expression triggers unbounded cache growth.\n\nAffected versions:\nSpring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18; 6.1.0 through 6.1.27; 5.3.0 through 5.3.48."
        }
      ],
      "impacts": [
        {
          "descriptions": [
            {
              "lang": "en",
              "value": "An attacker who can supply user-controlled SpEL expressions to an application that caches parsed expressions can cause unbounded cache growth, resulting in memory exhaustion and denial of service."
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-770",
              "description": "CWE-770: Allocation of Resources Without Limits or Throttling",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-27T21:03:56.341Z",
        "orgId": "dcf2e128-44bd-42ed-91e8-88f912c1401d",
        "shortName": "vmware"
      },
      "references": [
        {
          "url": "https://spring.io/security/cve-2026-41851"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Spring Framework Denial of Service via Unbounded Cache in SpEL",
      "x_generator": {
        "engine": "Vulnogram 1.0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "dcf2e128-44bd-42ed-91e8-88f912c1401d",
    "assignerShortName": "vmware",
    "cveId": "CVE-2026-41851",
    "datePublished": "2026-06-09T03:51:32.074Z",
    "dateReserved": "2026-04-22T06:22:08.200Z",
    "dateUpdated": "2026-06-27T21:03:56.341Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-41851",
      "date": "2026-10-01",
      "epss": "0.0046",
      "percentile": "0.37541"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Spring Framework",
                "vendor": "Spring",
                "versions": [
                  {
                    "lessThan": "7.0.7.1",
                    "status": "affected",
                    "version": "7.0.0",
                    "versionType": "custom"
                  },
                  {
                    "lessThan": "6.2.18.1",
                    "status": "affected",
                    "version": "6.2.0",
                    "versionType": "custom"
                  },
                  {
                    "lessThan": "6.1.28",
                    "status": "affected",
                    "version": "6.1.0",
                    "versionType": "custom"
                  },
                  {
                    "lessThan": "5.3.49",
                    "status": "affected",
                    "version": "5.3.0",
                    "versionType": "custom"
                  }
                ]
              }
            ],
            "source": "security@vmware.com"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:vmware:spring_framework:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "9394F974-169E-4FB0-A85B-0114477DE421",
                    "versionEndExcluding": "5.3.49",
                    "versionStartIncluding": "5.3.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:vmware:spring_framework:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "CE392CE7-5DA3-4DBE-B22C-27781E204B7E",
                    "versionEndExcluding": "6.1.28",
                    "versionStartIncluding": "6.1.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:vmware:spring_framework:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "8D4BC30C-3E08-4A62-992D-4D2274844D54",
                    "versionEndExcluding": "6.2.18.1",
                    "versionStartIncluding": "6.2.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:vmware:spring_framework:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "569A2EF8-281F-4D8A-A76C-79ED67826B38",
                    "versionEndExcluding": "7.0.7.1",
                    "versionStartIncluding": "7.0.0",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "Applications which accept user-supplied Spring Expression Language (SpEL) expressions may be vulnerable to a Denial of Service (DoS) attack if the evaluation of a SpEL expression triggers unbounded cache growth.\n\nAffected versions:\nSpring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18; 6.1.0 through 6.1.27; 5.3.0 through 5.3.48."
          },
          {
            "lang": "es",
            "value": "Aplicaciones que aceptan expresiones de Spring Expression Language (SpEL) proporcionadas por el usuario pueden ser vulnerables a un ataque de denegaci\u00f3n de servicio (DoS) si la evaluaci\u00f3n de una expresi\u00f3n SpEL desencadena un crecimiento ilimitado de la cach\u00e9.\n\nVersiones afectadas:\nSpring Framework 7.0.0 a 7.0.7; 6.2.0 a 6.2.18; 6.1.0 a 6.1.27; 5.3.0 a 5.3.48."
          }
        ],
        "id": "CVE-2026-41851",
        "lastModified": "2026-07-23T08:10:00.137",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "LOW",
                "baseScore": 5.3,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
                "version": "3.1"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 1.4,
              "source": "security@vmware.com",
              "type": "Secondary"
            },
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 7.5,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2026-41851",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "yes"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-09T13:34:51.694460Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2026-06-09T05:16:37.297",
        "references": [
          {
            "source": "security@vmware.com",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "https://spring.io/security/cve-2026-41851"
          }
        ],
        "sourceIdentifier": "security@vmware.com",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-770"
              }
            ],
            "source": "security@vmware.com",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-07-17T13:20:05+00:00",
      "cve": "CVE-2026-41851",
      "id": "CVE-2026-41851",
      "initial_release_date": "2026-06-09T03:51:32.074000+00:00",
      "product_status:known_affected": "2",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "Spring Framework: Spring Framework: Denial of Service via unbounded cache growth in SpEL evaluation",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-41851.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-41851",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "yes"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-06-09T13:34:51.694460Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-06-09T13:34:55.071Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "Spring Framework",
              "vendor": "Spring",
              "versions": [
                {
                  "lessThan": "7.0.7.1",
                  "status": "affected",
                  "version": "7.0.0",
                  "versionType": "custom"
                },
                {
                  "lessThan": "6.2.18.1",
                  "status": "affected",
                  "version": "6.2.0",
                  "versionType": "custom"
                },
                {
                  "lessThan": "6.1.28",
                  "status": "affected",
                  "version": "6.1.0",
                  "versionType": "custom"
                },
                {
                  "lessThan": "5.3.49",
                  "status": "affected",
                  "version": "5.3.0",
                  "versionType": "custom"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "Applications which accept user-supplied Spring Expression Language (SpEL) expressions may be vulnerable to a Denial of Service (DoS) attack if the evaluation of a SpEL expression triggers unbounded cache growth.\n\nAffected versions:\nSpring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18; 6.1.0 through 6.1.27; 5.3.0 through 5.3.48."
                }
              ],
              "value": "Applications which accept user-supplied Spring Expression Language (SpEL) expressions may be vulnerable to a Denial of Service (DoS) attack if the evaluation of a SpEL expression triggers unbounded cache growth.\n\nAffected versions:\nSpring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18; 6.1.0 through 6.1.27; 5.3.0 through 5.3.48."
            }
          ],
          "impacts": [
            {
              "descriptions": [
                {
                  "lang": "en",
                  "value": "An attacker who can supply user-controlled SpEL expressions to an application that caches parsed expressions can cause unbounded cache growth, resulting in memory exhaustion and denial of service."
                }
              ]
            }
          ],
          "metrics": [
            {
              "cvssV3_1": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "LOW",
                "baseScore": 5.3,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
                "version": "3.1"
              },
              "format": "CVSS",
              "scenarios": [
                {
                  "lang": "en",
                  "value": "GENERAL"
                }
              ]
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-770",
                  "description": "CWE-770: Allocation of Resources Without Limits or Throttling",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-06-27T21:03:56.341Z",
            "orgId": "dcf2e128-44bd-42ed-91e8-88f912c1401d",
            "shortName": "vmware"
          },
          "references": [
            {
              "url": "https://spring.io/security/cve-2026-41851"
            }
          ],
          "source": {
            "discovery": "UNKNOWN"
          },
          "title": "Spring Framework Denial of Service via Unbounded Cache in SpEL",
          "x_generator": {
            "engine": "Vulnogram 1.0.1"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "dcf2e128-44bd-42ed-91e8-88f912c1401d",
        "assignerShortName": "vmware",
        "cveId": "CVE-2026-41851",
        "datePublished": "2026-06-09T03:51:32.074Z",
        "dateReserved": "2026-04-22T06:22:08.200Z",
        "dateUpdated": "2026-06-27T21:03:56.341Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Loading…

Loading…

Loading…

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


Loading…