CVE-2026-111751 (GCVE-0-2026-111751)

Vulnerability from cvelistv5 – Published: 2026-11-03 20:58 – Updated: 2026-11-07 03:34
VLAI
Title
Angular: Denial of Service via RouterLink Query Parameter Retention in Server-Side Rendering (SSR)
Summary
Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. From 21.2.0 until 21.2.25 and 22.2.1, RouterLink directives rendered during Node.js server-side rendering retain computed UrlTree instances for the lifetime of each request. When queryParamsHandling is set to merge or preserve, either per link or through defaultQueryParamsHandling, every rendered link can retain a copy of attacker-controlled query parameters in its UrlTree. When upstream proxies or load balancers forward oversized query strings without rejecting them at the edge, multiple affected links and overlapping renders can amplify heap use until the Node.js old-space heap is exhausted and the SSR worker terminates. Numeric query-parameter names increase allocation pressure but are not required, memory is released after rendering completes, and pure client-side SPAs are not affected. This issue is fixed in versions 21.2.25 and 22.2.1.
Severity
8.2 (High)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-07 03:34 UTC
CWE
  • CWE-400 - Uncontrolled Resource Consumption
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
angular angular Affected: >= 21.2.0, < 21.2.25
Affected: >= 22.0.0, < 22.2.1
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-111751",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-11-07T03:34:14.998231Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-11-07T03:34:24.947Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "angular",
          "vendor": "angular",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 21.2.0, \u003c 21.2.25"
            },
            {
              "status": "affected",
              "version": "\u003e= 22.0.0, \u003c 22.2.1"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. From 21.2.0 until 21.2.25 and 22.2.1, RouterLink directives rendered during Node.js server-side rendering retain computed UrlTree instances for the lifetime of each request. When queryParamsHandling is set to merge or preserve, either per link or through defaultQueryParamsHandling, every rendered link can retain a copy of attacker-controlled query parameters in its UrlTree. When upstream proxies or load balancers forward oversized query strings without rejecting them at the edge, multiple affected links and overlapping renders can amplify heap use until the Node.js old-space heap is exhausted and the SSR worker terminates. Numeric query-parameter names increase allocation pressure but are not required, memory is released after rendering completes, and pure client-side SPAs are not affected. This issue is fixed in versions 21.2.25 and 22.2.1."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 8.2,
            "baseSeverity": "HIGH",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-400",
              "description": "CWE-400: Uncontrolled Resource Consumption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-770",
              "description": "CWE-770: Allocation of Resources Without Limits or Throttling",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-11-03T20:58:04.630Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/angular/angular/security/advisories/GHSA-57xq-rjx2-v5xh",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/angular/angular/security/advisories/GHSA-57xq-rjx2-v5xh"
        },
        {
          "name": "https://github.com/angular/angular/issues/70908",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/angular/angular/issues/70908"
        },
        {
          "name": "https://github.com/angular/angular/pull/70953",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/angular/angular/pull/70953"
        },
        {
          "name": "https://github.com/angular/angular/commit/14793bfe4b44a36ed4b7e49a60458ec711c2b41a",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/angular/angular/commit/14793bfe4b44a36ed4b7e49a60458ec711c2b41a"
        },
        {
          "name": "https://github.com/angular/angular/commit/a131f77d92808ad5c2f3fa4dc6fde36825f12c5a",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/angular/angular/commit/a131f77d92808ad5c2f3fa4dc6fde36825f12c5a"
        },
        {
          "name": "https://github.com/angular/angular/releases/tag/v21.2.25",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/angular/angular/releases/tag/v21.2.25"
        },
        {
          "name": "https://github.com/angular/angular/releases/tag/v22.2.1",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/angular/angular/releases/tag/v22.2.1"
        }
      ],
      "source": {
        "advisory": "GHSA-57xq-rjx2-v5xh",
        "discovery": "UNKNOWN"
      },
      "title": "Angular: Denial of Service via RouterLink Query Parameter Retention in Server-Side Rendering (SSR)"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-111751",
    "datePublished": "2026-11-03T20:58:04.630Z",
    "dateReserved": "2026-10-16T17:52:09.081Z",
    "dateUpdated": "2026-11-07T03:34:24.947Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-111751",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "yes"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-11-07T03:34:14.998231Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-11-07T03:34:21.013Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "product": "angular",
              "vendor": "angular",
              "versions": [
                {
                  "status": "affected",
                  "version": "\u003e= 21.2.0, \u003c 21.2.25"
                },
                {
                  "status": "affected",
                  "version": "\u003e= 22.0.0, \u003c 22.2.1"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. From 21.2.0 until 21.2.25 and 22.2.1, RouterLink directives rendered during Node.js server-side rendering retain computed UrlTree instances for the lifetime of each request. When queryParamsHandling is set to merge or preserve, either per link or through defaultQueryParamsHandling, every rendered link can retain a copy of attacker-controlled query parameters in its UrlTree. When upstream proxies or load balancers forward oversized query strings without rejecting them at the edge, multiple affected links and overlapping renders can amplify heap use until the Node.js old-space heap is exhausted and the SSR worker terminates. Numeric query-parameter names increase allocation pressure but are not required, memory is released after rendering completes, and pure client-side SPAs are not affected. This issue is fixed in versions 21.2.25 and 22.2.1."
            }
          ],
          "metrics": [
            {
              "cvssV4_0": {
                "attackComplexity": "LOW",
                "attackRequirements": "PRESENT",
                "attackVector": "NETWORK",
                "baseScore": 8.2,
                "baseSeverity": "HIGH",
                "privilegesRequired": "NONE",
                "subAvailabilityImpact": "NONE",
                "subConfidentialityImpact": "NONE",
                "subIntegrityImpact": "NONE",
                "userInteraction": "NONE",
                "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
                "version": "4.0",
                "vulnAvailabilityImpact": "HIGH",
                "vulnConfidentialityImpact": "NONE",
                "vulnIntegrityImpact": "NONE"
              }
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-400",
                  "description": "CWE-400: Uncontrolled Resource Consumption",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            },
            {
              "descriptions": [
                {
                  "cweId": "CWE-770",
                  "description": "CWE-770: Allocation of Resources Without Limits or Throttling",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-11-03T20:58:04.630Z",
            "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
            "shortName": "GitHub_M"
          },
          "references": [
            {
              "name": "https://github.com/angular/angular/security/advisories/GHSA-57xq-rjx2-v5xh",
              "tags": [
                "x_refsource_CONFIRM"
              ],
              "url": "https://github.com/angular/angular/security/advisories/GHSA-57xq-rjx2-v5xh"
            },
            {
              "name": "https://github.com/angular/angular/issues/70908",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://github.com/angular/angular/issues/70908"
            },
            {
              "name": "https://github.com/angular/angular/pull/70953",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://github.com/angular/angular/pull/70953"
            },
            {
              "name": "https://github.com/angular/angular/commit/14793bfe4b44a36ed4b7e49a60458ec711c2b41a",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://github.com/angular/angular/commit/14793bfe4b44a36ed4b7e49a60458ec711c2b41a"
            },
            {
              "name": "https://github.com/angular/angular/commit/a131f77d92808ad5c2f3fa4dc6fde36825f12c5a",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://github.com/angular/angular/commit/a131f77d92808ad5c2f3fa4dc6fde36825f12c5a"
            },
            {
              "name": "https://github.com/angular/angular/releases/tag/v21.2.25",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://github.com/angular/angular/releases/tag/v21.2.25"
            },
            {
              "name": "https://github.com/angular/angular/releases/tag/v22.2.1",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://github.com/angular/angular/releases/tag/v22.2.1"
            }
          ],
          "source": {
            "advisory": "GHSA-57xq-rjx2-v5xh",
            "discovery": "UNKNOWN"
          },
          "title": "Angular: Denial of Service via RouterLink Query Parameter Retention in Server-Side Rendering (SSR)"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "assignerShortName": "GitHub_M",
        "cveId": "CVE-2026-111751",
        "datePublished": "2026-11-03T20:58:04.630Z",
        "dateReserved": "2026-10-16T17:52:09.081Z",
        "dateUpdated": "2026-11-07T03:34:24.947Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON

Loading timeline…




    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.