EUVD-2026-63579

The github-issue-bot templates in appwrite/templates verify the GitHub webhook signature with an inverted condition. verifyWebhook in node/github-issue-bot/src/github.js and in node-typescript/github-issue-bot/src/github.ts returns "typeof signature !== 'string' || await verify...", so when the...

CVE-2026-72861

In Appwrite templates' github-issue-bot, verifyWebhook uses an inverted condition (typeof signature !== 'string' || (await verify(...))) that short-circuits to success when the X-Hub-Signature-256 header is absent, skipping HMAC verification. Unauthenticated callers can then post arbitrary commen...