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CVE-2026-75517 (GCVE-0-2026-75517)

Vulnerability from nvd – Published: 2026-09-22 15:51 – Updated: 2026-09-22 17:43

Title

Novu: Cross-Environment Integration Manipulation (IDOR)

Summary

Novu provides an API for sending notifications through multiple channels. Prior to 3.18.0, Novu integration mutation use cases including remove-integration, update-integration, auto-configure-integration, and set-integration-as-primary look up an integration by integrationId and organizationId without consistently enforcing environmentId. A caller with access to one environment in an organization can target an integration identifier from another environment and delete the integration, modify its credentials, change the primary provider, or trigger auto-configuration. The repository advisory defines both environment API keys and dashboard sessions as affected. The 3.18.0 change enforces the environment boundary only for environment-scoped API-key authentication, while its tests intentionally retain cross-environment dashboard-session behavior, so it does not completely remediate the advisory-defined scope. Version 3.18.0 is a partial fix attempt, and the dashboard-session behavior requires curator resolution.

Severity

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-22 17:33 UTC

CWE

CWE-639 - Authorization Bypass Through User-Controlled Key

Assigner

GitHub_M mitre root

References

4 references

URL	Tags
https://github.com/novuhq/novu/security/advisorie…	x_refsource_CONFIRM
https://github.com/novuhq/novu/pull/11480	x_refsource_MISC
https://github.com/novuhq/novu/commit/3d9bbdccf4e…	x_refsource_MISC
https://github.com/novuhq/novu/releases/tag/v3.18.0	x_refsource_MISC

Impacted products

2 products

Vendor	Product	Version
novuhq	novu	Affected: < 3.18.0
@novu	api-service	Affected: < 3.18.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-75517",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-22T17:33:09.509575Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-22T17:43:48.795Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "novu",
          "vendor": "novuhq",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.18.0"
            }
          ]
        },
        {
          "product": "api-service",
          "vendor": "@novu",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.18.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Novu provides an API for sending notifications through multiple channels. Prior to 3.18.0, Novu integration mutation use cases including remove-integration, update-integration, auto-configure-integration, and set-integration-as-primary look up an integration by integrationId and organizationId without consistently enforcing environmentId. A caller with access to one environment in an organization can target an integration identifier from another environment and delete the integration, modify its credentials, change the primary provider, or trigger auto-configuration. The repository advisory defines both environment API keys and dashboard sessions as affected. The 3.18.0 change enforces the environment boundary only for environment-scoped API-key authentication, while its tests intentionally retain cross-environment dashboard-session behavior, so it does not completely remediate the advisory-defined scope. Version 3.18.0 is a partial fix attempt, and the dashboard-session behavior requires curator resolution."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
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          "descriptions": [
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              "cweId": "CWE-639",
              "description": "CWE-639: Authorization Bypass Through User-Controlled Key",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-22T15:51:24.246Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/novuhq/novu/security/advisories/GHSA-jh6r-hjhp-wh2h",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/novuhq/novu/security/advisories/GHSA-jh6r-hjhp-wh2h"
        },
        {
          "name": "https://github.com/novuhq/novu/pull/11480",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/novuhq/novu/pull/11480"
        },
        {
          "name": "https://github.com/novuhq/novu/commit/3d9bbdccf4e36224b5558c245d2b7c085b5d5302",
          "tags": [
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          ],
          "url": "https://github.com/novuhq/novu/commit/3d9bbdccf4e36224b5558c245d2b7c085b5d5302"
        },
        {
          "name": "https://github.com/novuhq/novu/releases/tag/v3.18.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/novuhq/novu/releases/tag/v3.18.0"
        }
      ],
      "source": {
        "advisory": "GHSA-jh6r-hjhp-wh2h",
        "discovery": "UNKNOWN"
      },
      "title": "Novu: Cross-Environment Integration Manipulation (IDOR)"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-75517",
    "datePublished": "2026-09-22T15:51:24.246Z",
    "dateReserved": "2026-08-17T20:49:21.599Z",
    "dateUpdated": "2026-09-22T17:43:48.795Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-75511 (GCVE-0-2026-75511)

Vulnerability from nvd – Published: 2026-09-22 15:49 – Updated: 2026-09-22 15:49

Title

Novu: Server-Side Request Forgery (SSRF) via Chat Provider Webhook URLs

Summary

Novu provides an API for sending notifications through multiple channels. Prior to 3.18.0, Novu accepts chat webhook URLs from subscriber credentials.webhookUrl, channel endpoint endpoint.url, event payload.webhookUrl, and event overrides.webhookUrl, then passes the selected endpoint.url through send-message-chat.usecase.ts to raw HTTP requests in the Slack, Discord, Mattermost, Microsoft Teams, Grafana On-Call, Ryver, Rocket.Chat, GetStream, and Zulip providers. An authenticated user can supply an internal or otherwise restricted destination because these paths do not apply normalizeOutboundHttpUrl, assertSafeOutboundUrl, or the DNS-pinned safeOutboundJsonRequest protection used by the generic webhook providers. The Novu worker can consequently issue attacker-directed POST requests to internal network services and cause interactions or actions supported by those services. This issue is fixed in version 3.18.0.

Severity

5.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L

CWE

CWE-918 - Server-Side Request Forgery (SSRF)

Assigner

GitHub_M mitre root

References

4 references

URL	Tags
https://github.com/novuhq/novu/security/advisorie…	x_refsource_CONFIRM
https://github.com/novuhq/novu/pull/11455	x_refsource_MISC
https://github.com/novuhq/novu/commit/dabfd66457c…	x_refsource_MISC
https://github.com/novuhq/novu/releases/tag/v3.18.0	x_refsource_MISC

Impacted products

2 products

Vendor	Product	Version
novuhq	novu	Affected: < 3.18.0
@novu	api-service	Affected: < 3.18.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "novu",
          "vendor": "novuhq",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.18.0"
            }
          ]
        },
        {
          "product": "api-service",
          "vendor": "@novu",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.18.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Novu provides an API for sending notifications through multiple channels. Prior to 3.18.0, Novu accepts chat webhook URLs from subscriber credentials.webhookUrl, channel endpoint endpoint.url, event payload.webhookUrl, and event overrides.webhookUrl, then passes the selected endpoint.url through send-message-chat.usecase.ts to raw HTTP requests in the Slack, Discord, Mattermost, Microsoft Teams, Grafana On-Call, Ryver, Rocket.Chat, GetStream, and Zulip providers. An authenticated user can supply an internal or otherwise restricted destination because these paths do not apply normalizeOutboundHttpUrl, assertSafeOutboundUrl, or the DNS-pinned safeOutboundJsonRequest protection used by the generic webhook providers. The Novu worker can consequently issue attacker-directed POST requests to internal network services and cause interactions or actions supported by those services. This issue is fixed in version 3.18.0."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "LOW",
            "subConfidentialityImpact": "LOW",
            "subIntegrityImpact": "LOW",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L",
            "version": "4.0",
            "vulnAvailabilityImpact": "LOW",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "LOW"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-918",
              "description": "CWE-918: Server-Side Request Forgery (SSRF)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-22T15:49:37.481Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/novuhq/novu/security/advisories/GHSA-pg9q-8v57-hqph",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/novuhq/novu/security/advisories/GHSA-pg9q-8v57-hqph"
        },
        {
          "name": "https://github.com/novuhq/novu/pull/11455",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/novuhq/novu/pull/11455"
        },
        {
          "name": "https://github.com/novuhq/novu/commit/dabfd66457c0b98ad46a8186e69f74f570a990c2",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/novuhq/novu/commit/dabfd66457c0b98ad46a8186e69f74f570a990c2"
        },
        {
          "name": "https://github.com/novuhq/novu/releases/tag/v3.18.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/novuhq/novu/releases/tag/v3.18.0"
        }
      ],
      "source": {
        "advisory": "GHSA-pg9q-8v57-hqph",
        "discovery": "UNKNOWN"
      },
      "title": "Novu: Server-Side Request Forgery (SSRF) via Chat Provider Webhook URLs"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-75511",
    "datePublished": "2026-09-22T15:49:37.481Z",
    "dateReserved": "2026-08-17T20:49:21.599Z",
    "dateUpdated": "2026-09-22T15:49:37.481Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-75510 (GCVE-0-2026-75510)

Vulnerability from nvd – Published: 2026-09-22 15:47 – Updated: 2026-09-22 15:59

Title

Novu: Stored XSS in In-App Inbox via notification redirect.url javascript: scheme

Summary

Novu provides an API for sending notifications through multiple channels. Prior to 3.18.0, Novu's @novu/js In-App Inbox and the @novu/react Inbox component accept a notification call-to-action redirect.url from the v1 cta.data object and pass it through apps/api/src/app/inbox/utils/notification-mapper.ts and packages/js/src/ui/components/Notification/DefaultNotification.tsx to the navigate function in packages/js/src/ui/context/InboxContext.tsx without validating its URL scheme. An authenticated organization member or environment API-key holder can store a javascript: redirect with target _self in an in-app workflow. When a recipient using a Chromium-based browser clicks the notification, window.open executes the redirect in the current inbox-hosting origin, which can expose session material and permit authenticated actions in a customer application or the self-hosted Novu dashboard. This issue is fixed in version 3.18.0.

Severity

5.1 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-22 15:59 UTC

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

GitHub_M mitre root

References

4 references

URL	Tags
https://github.com/novuhq/novu/security/advisorie…	x_refsource_CONFIRM
https://github.com/novuhq/novu/pull/11453	x_refsource_MISC
https://github.com/novuhq/novu/commit/f105f3d41a4…	x_refsource_MISC
https://github.com/novuhq/novu/releases/tag/v3.18.0	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
novuhq	novu	Affected: < 3.18.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-75510",
                "options": [
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                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-22T15:59:07.979961Z",
                "version": "2.0.3"
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              "type": "ssvc"
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          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-22T15:59:27.761Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
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              "exploit"
            ],
            "url": "https://github.com/novuhq/novu/security/advisories/GHSA-8gr3-5j6f-25gp"
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        "title": "CISA ADP Vulnrichment"
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    ],
    "cna": {
      "affected": [
        {
          "product": "novu",
          "vendor": "novuhq",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.18.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Novu provides an API for sending notifications through multiple channels. Prior to 3.18.0, Novu\u0027s @novu/js In-App Inbox and the @novu/react Inbox component accept a notification call-to-action redirect.url from the v1 cta.data object and pass it through apps/api/src/app/inbox/utils/notification-mapper.ts and packages/js/src/ui/components/Notification/DefaultNotification.tsx to the navigate function in packages/js/src/ui/context/InboxContext.tsx without validating its URL scheme. An authenticated organization member or environment API-key holder can store a javascript: redirect with target _self in an in-app workflow. When a recipient using a Chromium-based browser clicks the notification, window.open executes the redirect in the current inbox-hosting origin, which can expose session material and permit authenticated actions in a customer application or the self-hosted Novu dashboard. This issue is fixed in version 3.18.0."
        }
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      "metrics": [
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            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
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            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE"
          }
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      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
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              "type": "CWE"
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        "dateUpdated": "2026-09-22T15:47:19.922Z",
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  },
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  "dataVersion": "5.2"
}

CVE-2023-35948 (GCVE-0-2023-35948)

Vulnerability from nvd – Published: 2023-07-06 14:47 – Updated: 2024-10-18 19:16

Title

Novu Open Redirect Vulnerability in Sign-In with GitHub Functionality

Summary

Novu provides an API for sending notifications through multiple channels. Versions prior to 0.16.0 contain an open redirect vulnerability in the "Sign In with GitHub" functionality of Novu's open-source repository. It could have allowed an attacker to force a victim into opening a malicious URL and thus, potentially log into the repository under the victim's account gaining full control of the account. This vulnerability only affected the Novu Cloud and Open-Source deployments if the user manually enabled the GitHub OAuth on their self-hosted instance of Novu. Users should upgrade to version 0.16.0 to receive a patch.

Severity

5.4 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-10-18 18:58 UTC

CWE

CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')

Assigner

GitHub_M mitre root

References

2 references

URL	Tags
https://github.com/novuhq/novu/security/advisorie…	x_refsource_CONFIRM
https://github.com/novuhq/novu/pull/3510	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
novuhq	novu	Affected: < 0.16.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T16:37:40.539Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        },
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          {
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              "x_transferred"
            ],
            "url": "https://github.com/novuhq/novu/security/advisories/GHSA-xxv3-m43w-gv79"
          },
          {
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            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
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          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-35948",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
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}

CVE-2026-75517 (GCVE-0-2026-75517)

Vulnerability from cvelistv5 – Published: 2026-09-22 15:51 – Updated: 2026-09-22 17:43

Title

Novu: Cross-Environment Integration Manipulation (IDOR)

Summary

Novu provides an API for sending notifications through multiple channels. Prior to 3.18.0, Novu integration mutation use cases including remove-integration, update-integration, auto-configure-integration, and set-integration-as-primary look up an integration by integrationId and organizationId without consistently enforcing environmentId. A caller with access to one environment in an organization can target an integration identifier from another environment and delete the integration, modify its credentials, change the primary provider, or trigger auto-configuration. The repository advisory defines both environment API keys and dashboard sessions as affected. The 3.18.0 change enforces the environment boundary only for environment-scoped API-key authentication, while its tests intentionally retain cross-environment dashboard-session behavior, so it does not completely remediate the advisory-defined scope. Version 3.18.0 is a partial fix attempt, and the dashboard-session behavior requires curator resolution.

Severity

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-22 17:33 UTC

CWE

CWE-639 - Authorization Bypass Through User-Controlled Key

Assigner

GitHub_M mitre root

References

4 references

URL	Tags
https://github.com/novuhq/novu/security/advisorie…	x_refsource_CONFIRM
https://github.com/novuhq/novu/pull/11480	x_refsource_MISC
https://github.com/novuhq/novu/commit/3d9bbdccf4e…	x_refsource_MISC
https://github.com/novuhq/novu/releases/tag/v3.18.0	x_refsource_MISC

Impacted products

2 products

Vendor	Product	Version
novuhq	novu	Affected: < 3.18.0
@novu	api-service	Affected: < 3.18.0

Show details on NVD website

JSON

To clipboard

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  "containers": {
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        "metrics": [
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CVE-2026-75511 (GCVE-0-2026-75511)

Vulnerability from cvelistv5 – Published: 2026-09-22 15:49 – Updated: 2026-09-22 15:49

Title

Novu: Server-Side Request Forgery (SSRF) via Chat Provider Webhook URLs

Summary

Novu provides an API for sending notifications through multiple channels. Prior to 3.18.0, Novu accepts chat webhook URLs from subscriber credentials.webhookUrl, channel endpoint endpoint.url, event payload.webhookUrl, and event overrides.webhookUrl, then passes the selected endpoint.url through send-message-chat.usecase.ts to raw HTTP requests in the Slack, Discord, Mattermost, Microsoft Teams, Grafana On-Call, Ryver, Rocket.Chat, GetStream, and Zulip providers. An authenticated user can supply an internal or otherwise restricted destination because these paths do not apply normalizeOutboundHttpUrl, assertSafeOutboundUrl, or the DNS-pinned safeOutboundJsonRequest protection used by the generic webhook providers. The Novu worker can consequently issue attacker-directed POST requests to internal network services and cause interactions or actions supported by those services. This issue is fixed in version 3.18.0.

Severity

5.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L

CWE

CWE-918 - Server-Side Request Forgery (SSRF)

Assigner

GitHub_M mitre root

References

4 references

URL	Tags
https://github.com/novuhq/novu/security/advisorie…	x_refsource_CONFIRM
https://github.com/novuhq/novu/pull/11455	x_refsource_MISC
https://github.com/novuhq/novu/commit/dabfd66457c…	x_refsource_MISC
https://github.com/novuhq/novu/releases/tag/v3.18.0	x_refsource_MISC

Impacted products

2 products

Vendor	Product	Version
novuhq	novu	Affected: < 3.18.0
@novu	api-service	Affected: < 3.18.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "novu",
          "vendor": "novuhq",
          "versions": [
            {
              "status": "affected",
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        },
        {
          "product": "api-service",
          "vendor": "@novu",
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        }
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          "tags": [
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}

CVE-2026-75510 (GCVE-0-2026-75510)

Vulnerability from cvelistv5 – Published: 2026-09-22 15:47 – Updated: 2026-09-22 15:59

Title

Novu: Stored XSS in In-App Inbox via notification redirect.url javascript: scheme

Summary

Novu provides an API for sending notifications through multiple channels. Prior to 3.18.0, Novu's @novu/js In-App Inbox and the @novu/react Inbox component accept a notification call-to-action redirect.url from the v1 cta.data object and pass it through apps/api/src/app/inbox/utils/notification-mapper.ts and packages/js/src/ui/components/Notification/DefaultNotification.tsx to the navigate function in packages/js/src/ui/context/InboxContext.tsx without validating its URL scheme. An authenticated organization member or environment API-key holder can store a javascript: redirect with target _self in an in-app workflow. When a recipient using a Chromium-based browser clicks the notification, window.open executes the redirect in the current inbox-hosting origin, which can expose session material and permit authenticated actions in a customer application or the self-hosted Novu dashboard. This issue is fixed in version 3.18.0.

Severity

5.1 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-22 15:59 UTC

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

GitHub_M mitre root

References

4 references

URL	Tags
https://github.com/novuhq/novu/security/advisorie…	x_refsource_CONFIRM
https://github.com/novuhq/novu/pull/11453	x_refsource_MISC
https://github.com/novuhq/novu/commit/f105f3d41a4…	x_refsource_MISC
https://github.com/novuhq/novu/releases/tag/v3.18.0	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
novuhq	novu	Affected: < 3.18.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
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          "name": "https://github.com/novuhq/novu/releases/tag/v3.18.0",
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            "x_refsource_MISC"
          ],
          "url": "https://github.com/novuhq/novu/releases/tag/v3.18.0"
        }
      ],
      "source": {
        "advisory": "GHSA-8gr3-5j6f-25gp",
        "discovery": "UNKNOWN"
      },
      "title": "Novu: Stored XSS in In-App Inbox via notification redirect.url javascript: scheme"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-75510",
    "datePublished": "2026-09-22T15:47:19.922Z",
    "dateReserved": "2026-08-17T20:49:21.598Z",
    "dateUpdated": "2026-09-22T15:59:27.761Z",
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CVE-2023-35948 (GCVE-0-2023-35948)

Vulnerability from cvelistv5 – Published: 2023-07-06 14:47 – Updated: 2024-10-18 19:16

Title

Novu Open Redirect Vulnerability in Sign-In with GitHub Functionality

Summary

Novu provides an API for sending notifications through multiple channels. Versions prior to 0.16.0 contain an open redirect vulnerability in the "Sign In with GitHub" functionality of Novu's open-source repository. It could have allowed an attacker to force a victim into opening a malicious URL and thus, potentially log into the repository under the victim's account gaining full control of the account. This vulnerability only affected the Novu Cloud and Open-Source deployments if the user manually enabled the GitHub OAuth on their self-hosted instance of Novu. Users should upgrade to version 0.16.0 to receive a patch.

Severity

5.4 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-10-18 18:58 UTC

CWE

CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')

Assigner

GitHub_M mitre root

References

2 references

URL	Tags
https://github.com/novuhq/novu/security/advisorie…	x_refsource_CONFIRM
https://github.com/novuhq/novu/pull/3510	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
novuhq	novu	Affected: < 0.16.0

Show details on NVD website

JSON

To clipboard

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Find a vulnerability

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8 vulnerabilities by novuhq

CVE-2026-75517 (GCVE-0-2026-75517)

CVE-2026-75511 (GCVE-0-2026-75511)

CVE-2026-75510 (GCVE-0-2026-75510)

CVE-2023-35948 (GCVE-0-2023-35948)

CVE-2026-75517 (GCVE-0-2026-75517)

CVE-2026-75511 (GCVE-0-2026-75511)

CVE-2026-75510 (GCVE-0-2026-75510)

CVE-2023-35948 (GCVE-0-2023-35948)

Find a vulnerability

Search criteria ⓘ Use this form to refine search results. Full-text search supports keyword queries with ranking and filtering. You can combine vendor, product, and sources to narrow results. Enable “Apply ordering” to sort by date instead of relevance.

8 vulnerabilities by novuhq

CVE-2026-75517 (GCVE-0-2026-75517)

CVE-2026-75511 (GCVE-0-2026-75511)

CVE-2026-75510 (GCVE-0-2026-75510)

CVE-2023-35948 (GCVE-0-2023-35948)

CVE-2026-75517 (GCVE-0-2026-75517)

CVE-2026-75511 (GCVE-0-2026-75511)

CVE-2026-75510 (GCVE-0-2026-75510)

CVE-2023-35948 (GCVE-0-2023-35948)

Search criteria ⓘ Use this form to refine search results.
Full-text search supports keyword queries with ranking and filtering.
You can combine vendor, product, and sources to narrow results.
Enable “Apply ordering” to sort by date instead of relevance.