https://db.gcve.eu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Mon, 12 Oct 2026 08:44:36 +0000 https://db.gcve.eu/vuln/fkie_cve-2026-91972 <p>Vikunja versions before 2.6.0 fail to apply rate limiting to /api/v2 public authentication endpoints including login, register, password-reset, and OAuth token routes. Remote unauthenticated attackers can perform unbounded credential guessing, account enumeration, and password-reset flooding attacks without throttling restrictions.</p> <p>Vikunja versions before 2.6.0 fail to apply rate limiting to /api/v2 public authentication endpoints including login, register, password-reset, and OAuth token routes. Remote unauthenticated attackers can perform unbounded credential guessing, account enumeration, and password-reset flooding attacks without throttling restrictions.</p> https://db.gcve.eu/vuln/fkie_cve-2026-91972 https://db.gcve.eu/vuln/ghsa-6rvj-qwjf-3m4q <p><strong>Affected:</strong> Go: code.vikunja.io/api</p> <p>### Summary `registerAPIRoutesV2` never applies the unconditional pre-auth rate-limit floor (`unauthRateLimit()`) to the v2 public routes — it passes that limiter only to `/api/v2/ws` — and otherwise relies on `setupRateLimit`, which registers nothing when `ratelimit.enabled` is false (the default). So on a stock install every v2 pre-auth endpoint (login, register, password-reset token, oauth token) is unthrottled, while its v1 twin is throttled.</p> <p>### Details `unauthRateLimit()` -&gt; `perMinuteIPRateLimit(&#34;noauth&#34;, RateLimitNoAuthRoutesLimit)` (`pkg/routes/rate_limit.go`, ~lines 100-118) is an unconditional per-IP floor (default 10/60s) that deliberately ignores `RateLimitEnabled`, which is why v1&#39;s pre-auth routes are throttled even with the global limiter off. v1 applies it: `ur := a.Group(&#34;&#34;); ur.Use(unauthRateLimit())` (`pkg/routes/routes.go` ~line 459). `registerAPIRoutesV2` (~lines 405-431) passes the `unauthRateLimit()` instance only to `/api/v2/ws`; its auth routes get only `setupRateLimit(a, ...)`, which is config-gated and registers nothing by default.</p> <p>### PoC (verified at runtime against v2.5.0) ``` POST /api/v1/login x25 -&gt; 429 from attempt 5 POST /api/v2/login x25 -&gt; 403 x25, 429 x0 POST /api/v1/user/password/token -&gt; 429 (throttled) POST /api/v2/user/password/token x20 -&gt; 404 x20, 429 x0 ``` Request bodies are byte-identical across versions (shared `user.Login` / `user.PasswordTokenRequest`). Both v2 endpoints reach their handlers (…</p> <p><strong>Affected:</strong> Go: code.vikunja.io/api</p> <p>### Summary `registerAPIRoutesV2` never applies the unconditional pre-auth rate-limit floor (`unauthRateLimit()`) to the v2 public routes — it passes that limiter only to `/api/v2/ws` — and otherwise relies on `setupRateLimit`, which registers nothing when `ratelimit.enabled` is false (the default). So on a stock install every v2 pre-auth endpoint (login, register, password-reset token, oauth token) is unthrottled, while its v1 twin is throttled.</p> <p>### Details `unauthRateLimit()` -&gt; `perMinuteIPRateLimit(&#34;noauth&#34;, RateLimitNoAuthRoutesLimit)` (`pkg/routes/rate_limit.go`, ~lines 100-118) is an unconditional per-IP floor (default 10/60s) that deliberately ignores `RateLimitEnabled`, which is why v1&#39;s pre-auth routes are throttled even with the global limiter off. v1 applies it: `ur := a.Group(&#34;&#34;); ur.Use(unauthRateLimit())` (`pkg/routes/routes.go` ~line 459). `registerAPIRoutesV2` (~lines 405-431) passes the `unauthRateLimit()` instance only to `/api/v2/ws`; its auth routes get only `setupRateLimit(a, ...)`, which is config-gated and registers nothing by default.</p> <p>### PoC (verified at runtime against v2.5.0) ``` POST /api/v1/login x25 -&gt; 429 from attempt 5 POST /api/v2/login x25 -&gt; 403 x25, 429 x0 POST /api/v1/user/password/token -&gt; 429 (throttled) POST /api/v2/user/password/token x20 -&gt; 404 x20, 429 x0 ``` Request bodies are byte-identical across versions (shared `user.Login` / `user.PasswordTokenRequest`). Both v2 endpoints reach their handlers (…</p> https://db.gcve.eu/vuln/ghsa-6rvj-qwjf-3m4q