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    4 vulnerabilities by @novu

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

    Vulnerability from nvd – Published: 2026-09-22 15:51 – Updated: 2026-09-22 17:43
    VLAI
    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 CNA under the mitre root
    CNA scorecard C 72/100 over 7734 records in the last 180 days details
    References
    Impacted products
    Show details on NVD website
    To clipboard 

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

    Vulnerability from nvd – Published: 2026-09-22 15:49 – Updated: 2026-09-25 23:42
    VLAI
    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
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-09-25 23:41 UTC
    CWE
    • CWE-918 - Server-Side Request Forgery (SSRF)
    Assigner
    GitHub_M CNA under the mitre root
    CNA scorecard C 72/100 over 7734 records in the last 180 days details
    References
    Impacted products
    Show details on NVD website
    To clipboard 

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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
    VLAI
    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 CNA under the mitre root
    CNA scorecard C 72/100 over 7734 records in the last 180 days details
    References
    Impacted products
    Show details on NVD website
    To clipboard 

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

    Vulnerability from cvelistv5 – Published: 2026-09-22 15:49 – Updated: 2026-09-25 23:42
    VLAI
    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
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-09-25 23:41 UTC
    CWE
    • CWE-918 - Server-Side Request Forgery (SSRF)
    Assigner
    GitHub_M CNA under the mitre root
    CNA scorecard C 72/100 over 7734 records in the last 180 days details
    References
    Impacted products
    Show details on NVD website
    To clipboard 

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        {
          "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": "2026-09-25T23:42:12.190Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}