GHSA-8J4G-W8FX-2239 Hono: ReDoS in CORS middleware via Access-Control-Request-Headers

Summary The built-in CORS middleware hono/cors parses the attacker-controlled Access-Control-Request-Headers request header during a preflight OPTIONS request using a regular expression whose running time is quadratic in the input length. A single request carrying a long run of whitespace can...

EUVD-2025-23882

Malicious code in bioql PyPI...

GHSA-VH9X-PHQ6-FX54 Duplicate Advisory: Denial of service via malicious preflight requests in github.com/rs/cors

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-mh55-gqvf-xfwm. This link is maintained to preserve external references. Original Description Middleware causes a prohibitive amount of heap allocations when processing malicious preflight requests that include ...

CVE-2025-47908

Middleware causes a prohibitive amount of heap allocations when processing malicious preflight requests that include a Access-Control-Request-Headers ACRH header whose value contains many commas. This behavior can be abused by attackers to produce undue load on the middleware/server as an attempt...

UBUNTU-CVE-2025-47908

Middleware causes a prohibitive amount of heap allocations when processing malicious preflight requests that include a Access-Control-Request-Headers ACRH header whose value contains many commas. This behavior can be abused by attackers to produce undue load on the middleware/server as an attempt...

CVE-2025-47908 Denial of service via malicious preflight requests in github.com/rs/cors

Middleware causes a prohibitive amount of heap allocations when processing malicious preflight requests that include a Access-Control-Request-Headers ACRH header whose value contains many commas. This behavior can be abused by attackers to produce undue load on the middleware/server as an attempt...

CVE-2025-47908 Denial of service via malicious preflight requests in github.com/rs/cors

Middleware causes a prohibitive amount of heap allocations when processing malicious preflight requests that include a Access-Control-Request-Headers ACRH header whose value contains many commas. This behavior can be abused by attackers to produce undue load on the middleware/server as an attempt...

CVE-2025-47908

CVE-2025-47908 affects the Go middleware library github.com/rs/cors. Description in connected advisory confirms a DoS risk: processing malicious preflight requests with an Access-Control-Request-Headers header containing many commas triggers prohibitive heap allocations. Remediation provided by S...

CVE-2025-47908 Denial of service via malicious preflight requests in github.com/rs/cors

Middleware causes a prohibitive amount of heap allocations when processing malicious preflight requests that include a Access-Control-Request-Headers ACRH header whose value contains many commas. This behavior can be abused by attackers to produce undue load on the middleware/server as an attempt...

Denial of service via malicious preflight requests in github.com/rs/cors

Middleware causes a prohibitive amount of heap allocations when processing malicious preflight requests that include a Access-Control-Request-Headers ACRH header whose value contains many commas. This behavior can be abused by attackers to produce undue load on the middleware/server as an attempt...

PT-2025-32214

Name of the Vulnerable Software and Affected Versions Middleware affected versions not specified Description The middleware experiences excessive heap allocations when handling malicious preflight requests containing a large number of commas within the Access-Control-Request-Headers ACRH header...