Most recent entries from all

EUVD-2026-322243

2026-10-03T23:37:34.302112+00:00

EUVD-2026-322243

fkie_cve-2026-48147

2026-10-03T23:37:34.302145+00:00

Budibase is an open-source low-code platform. Prior to 3.35.4, the buildMatcherRegex() / matches() functions in packages/backend-core/src/middleware/matchers.ts route patterns are compiled into unanchored regular expressions and tested against ctx.request.url, which includes the full query string. The CSRF middleware in the Budibase Worker uses this matching system to decide whether to skip CSRF token validation. An unauthenticated attacker can forge state-changing cross-origin requests against any Worker API endpoint by injecting a public route pattern into the query string, causing the CSRF middleware to skip token validation entirely. This allows actions such as sending admin invites, modifying global configuration, and managing users without a valid CSRF token. This vulnerability is fixed in 3.35.4.

GHSA-wxq7-x3qp-vcr8 — Budibase: Unanchored Regex in `matchers.ts` Allows CSRF Bypass via Query String Injection in Budibase Worker

2026-10-03T23:37:34.302179+00:00

Affected: npm: @budibase/backend-core

### Summary

The `buildMatcherRegex()` / `matches()` functions in `packages/backend-core/src/middleware/matchers.ts` share the same structural root cause as the recently patched CVE-2026-31816: route patterns are compiled into **unanchored regular expressions** and tested against `ctx.request.url`, which includes the full query string. The CSRF middleware in the Budibase Worker uses this matching system to decide whether to skip CSRF token validation. An unauthenticated attacker can forge state-changing cross-origin requests against any Worker API endpoint by injecting a public route pattern into the query string, causing the CSRF middleware to skip token validation entirely. This allows actions such as sending admin invites, modifying global configuration, and managing users without a valid CSRF token.

CVE-2026-31816 fixed the same unanchored-regex-on-full-URL bug in `server/middleware/utils.ts` but left `backend-core/middleware/matchers.ts` untouched.

---

### Details

**Root cause — `packages/backend-core/src/middleware/matchers.ts`:**

```typescript export const buildMatcherRegex = (patterns: EndpointMatcher[]): RegexMatcher[] => { return patterns.map(pattern => { let route = pattern.route // replaces :param segments with /.* const matches = route.match(PARAM_REGEX) if (matches) { for (let match of matches) { const suffix = match.endsWith("/") ? "/" : "" route = route.replace(match, "/.*" + suffix) } } return { rege…

WID-SEC-W-2026-1629 — Budibase: Mehrere Schwachstellen

2026-10-03T23:37:34.302251+00:00

Ein Angreifer kann mehrere Schwachstellen in Budibase ausnutzen, um Administratorrechte zu erlangen, Sicherheitsmaßnahmen zu umgehen, Cross-Site-Scripting-Angriffe durchzuführen, Daten zu manipulieren oder vertrauliche Informationen offenzulegen.