CVE-2026-67530

WACRM is a self-hostable CRM template for WhatsApp. In 0.7.0 and earlier, the automation sendwebhook action in src/lib/automations/engine.ts and its validation in src/lib/automations/validate.ts allowed an authenticated user with automation privileges to submit an arbitrary webhook URL that the...

SUSE CVE-2026-47267

Gogs is an open source self-hosted Git service. Prior to 0.14.3, the fix for CVE-2022-1285 prevents adding webooks or running webhooks with URLs with a hostname that resolves in localCIDRs. However, webhooks still follow redirects allowing to access hostname inside localCIDRs. This vulnerability ...

n8n Webhooks - Remote Code Execution

n8n is an open source workflow automation platform. Versions starting with 1.65.0 and below 1.121.0 enable an attacker to access files on the underlying server through execution of certain form-based workflows. A vulnerable workflow could grant access to an unauthenticated remote attacker,...

@novu/application-generic: `validateUrlSsrf` permits CGNAT (100.64.0.0/10) destinations — affects Workflow HTTP request step + Webhook filter condition

Hi Novu team, Reporting an SSRF blocklist gap in the shared validateUrlSsrf guard. A complete self-contained reproduction is inlined below — copy the four files into a directory and run docker compose up, plus a single-file probe that runs against Node directly. Locally validated against HEAD...

CVE-2026-16910

A flaw was found in Red Hat Quay's notification webhook feature. The Slack and generic webhook notification handlers accept user-supplied URLs without SSRF validation, allowing a repository administrator to make the Quay worker issue POST requests to internal network addresses or cloud...

CVE-2026-16910

CVE-2026-16910 describes an SSRF flaw in Red Hat Quay’s notification webhook handlers for Slack and generic webhooks. The handlers accept user-supplied URLs without SSRF validation, enabling a repository administrator to cause the Quay worker to issue POST requests to internal network addresses o...

CVE-2026-16910 Quay: ssrf in red hat quay notification webhooks (slack/generic)

A flaw was found in Red Hat Quay's notification webhook feature. The Slack and generic webhook notification handlers accept user-supplied URLs without SSRF validation, allowing a repository administrator to make the Quay worker issue POST requests to internal network addresses or cloud...

PYSEC-2026-3523 PraisonAI: Webhook signature verification skipped (fail-open) when secret unset, allowing forged inbound webhooks (WhatsApp & Linear bots)

The WhatsApp and Linear bot adapters verify the inbound webhook HMAC signature only when a secret is configured. When the secret environment variable is unset — the default on a fresh install and common in development — verification is skipped entirely and the webhook body is parsed and dispatche...

PYSEC-2026-3510 PraisonAI LinearBot processes unsigned webhooks when LINEAR_WEBHOOK_SECRET is missing

PraisonAI LinearBot processes unsigned webhooks when LINEARWEBHOOKSECRET is missing Summary PraisonAI's LinearBot starts a public webhook listener on 0.0.0.0 and treats LINEARWEBHOOKSECRET as optional. When the secret is absent, startup only logs a warning and handlewebhook skips Linear-Signature...

GO-2026-6033 Gitea: Webhooks created by a collaborator keep firing after their repo access is revoked → ongoing real-time exfiltration of private repo content in gitea.dev

Gitea: Webhooks created by a collaborator keep firing after their repo access is revoked → ongoing real-time exfiltration of private repo content in gitea.dev...

Duplicate Advisory: Unauthenticated Endpoint Allows Cancellation of Any User's Active Test Webhook

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-33q9-f52j-gc75. This link is maintained to preserve external references. Original Description n8n before 2.28.0 and before 2.27.4 on the 2.27.x branch registers the DELETE /$restEndpoint/test-webhook/:id endpoin...

CVE-2026-65014

n8n before 2.28.0 and before 2.27.4 on the 2.27.x branch registers the DELETE /$restEndpoint/test-webhook/:id endpoint before authentication middleware is applied, allowing any unauthenticated network caller who knows a workflow ID to cancel that workflow's active test webhook registration. The...

EUVD-2026-47630

n8n before 2.28.0 and before 2.27.4 on the 2.27.x branch registers the DELETE /$restEndpoint/test-webhook/:id endpoint before authentication middleware is applied, allowing any unauthenticated network caller who knows a workflow ID to cancel that workflow's active test webhook registration. The...

PT-2026-63344

n8n before 2.28.0 and before 2.27.4 on the 2.27.x branch registers the DELETE /$restEndpoint/test-webhook/:id endpoint before authentication middleware is applied, allowing any unauthenticated network caller who knows a workflow ID to cancel that workflow's active test webhook registration. The...

GHSA-2FCR-JFVC-VGG2 Gitea: Two SSRF findings

| --- | --- | | Versions tested | gitea/gitea:1.26.2 digest sha256:7d13848af12645600a5f9d93ee2560daa9c6fa6b5b859b7bff3a5e1c0b661031; gitea/gitea:latest resolves to the same digest at time of writing | | Source review | git checkout v1.26.2 commit 2c749ce | | Reproduction | bash runpoc.sh single...

GHSA-66M4-5JJR-2RG5 Gitea: Webhooks created by a collaborator keep firing after their repo access is revoked → ongoing real-time exfiltration of private repo content

Affected product Gitea — services/repository/collaboration.go DeleteCollaboration + webhook delivery Summary When a collaborator with admin permission on a private repo creates a webhook, that webhook keeps firing after the collaborator's access is revoked. Gitea's revocation cleanup...

EUVD-2026-45985

HeyForm is an open-source form builder. Prior to version 3.0.0-rc.9, completeSubmission accepts a hiddenFields: id, name, value array from the submitter and stores it verbatim in submission.hiddenFields, without validating the supplied id/name against the form's declared form.hiddenFields schema...

CVE-2026-63428

Summary: HeyForm (open-source form builder) prior to 3.0.0-rc.9 stores submitter-supplied hiddenFields unvalidated, allowing an anonymous submitter to inject arbitrary key/value data into submission.hiddenFields. Those fields are forwarded to every webhook integration registered on the form, enab...

CVE-2026-63428 HeyForm: completeSubmission persists submitter-supplied hidden fields verbatim without validating against the form's declared hidden-field set

HeyForm is an open-source form builder. Prior to version 3.0.0-rc.9, completeSubmission accepts a hiddenFields: id, name, value array from the submitter and stores it verbatim in submission.hiddenFields, without validating the supplied id/name against the form's declared form.hiddenFields schema...

Uncontrolled Resource Consumption

github.com/zalando/skipper is vulnerable to Uncontrolled Resource Consumption. The vulnerability is due to reading the entire admission webhook request body without enforcing a size limit, which allows an attacker to send excessively large payloads and exhaust memory, resulting in a...