Search vulnerabilities

Use the Query Builder to create your own search query, or check out the documentation to learn the search syntax.

Results 7

Export CSV
CVE-2026-33814

Infinite loop in HTTP/2 transport when given bad SETTINGS_MAX_FRAME_SIZE in net/http/internal/http2 in golang.org/x/net

When processing HTTP/2 SETTINGS frames, transport will enter an infinite loop of writing CONTINUATION frames if it receives a SETTINGS_MAX_FRAME_SIZE with a value of 0.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Go Standard Library Golang
Products
Net/http Go Http2
CVE-2023-44487

HTTP/2: Multiple HTTP/2 enabled web servers are vulnerable to a DDoS attack (Rapid Reset Attack)

The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.

CVSS 3.1 · 7.5 High EPSS 100.0% KEV · Listed
Vendors
Akka Amazon Apache and 30 more
Products
Http Server Opensearch Data Prepper Apisix and 375 more
CVE-2023-45288

HTTP/2 CONTINUATION flood in net/http

An attacker may cause an HTTP/2 endpoint to read arbitrary amounts of header data by sending an excessive number of CONTINUATION frames. Maintaining HPACK state requires parsing and processing all HEADERS and CONTINUATION frames on a connection. When a request's headers exceed MaxHeaderBytes, no memory is allocated to store the excess headers, but they are still parsed. This permits an attacker to cause an HTTP/2 endpoint to read arbitrary amounts of header data, all associated with a request which is going to be rejected. These headers can include Huffman-encoded data which is significantly more expensive for the receiver to decode than for an attacker to send. The fix sets a limit on the amount of excess header frames we will process before closing a connection.

CVSS 3.1 · 7.5 High EPSS 89.5% KEV · Not listed
Vendors
Go Standard Library Golang Redhat
Products
Net\/http Http2 Acm and 30 more
CVE-2025-47910

CrossOriginProtection insecure bypass patterns not limited to exact matches in net/http

When using http.CrossOriginProtection, the AddInsecureBypassPattern method can unexpectedly bypass more requests than intended. CrossOriginProtection then skips validation, but forwards the original request path, which may be served by a different handler without the intended security protections.

CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed
Vendors
Go Standard Library Golang
Products
Net\/http Http2 Net
CVE-2022-41723

Denial of service via crafted HTTP/2 stream in net/http and golang.org/x/net

A maliciously crafted HTTP/2 stream could cause excessive CPU consumption in the HPACK decoder, sufficient to cause a denial of service from a small number of small requests.

CVSS 3.1 · 7.5 High EPSS 4.6% KEV · Not listed
Vendors
Golang Redhat
Products
Go Hpack Http2 and 19 more
CVE-2023-39325

HTTP/2 rapid reset can cause excessive work in net/http

A malicious HTTP/2 client which rapidly creates requests and immediately resets them can cause excessive server resource consumption. While the total number of requests is bounded by the http2.Server.MaxConcurrentStreams setting, resetting an in-progress request allows the attacker to create a new request while the existing one is still executing. With the fix applied, HTTP/2 servers now bound the number of simultaneously executing handler goroutines to the stream concurrency limit (MaxConcurrentStreams). New requests arriving when at the limit (which can only happen after the client has reset an existing, in-flight request) will be queued until a handler exits. If the request queue grows too large, the server will terminate the connection. This issue is also fixed in golang.org/x/net/http2 for users manually configuring HTTP/2. The default stream concurrency limit is 250 streams (requests) per HTTP/2 connection. This value may be adjusted using the golang.org/x/net/http2 package; see the Server.MaxConcurrentStreams setting and the ConfigureServer function.

CVSS 3.1 · 7.5 High EPSS 3.8% KEV · Not listed
Vendors
Fedoraproject Golang Netapp and 1 more
Products
Fedora Go Http2 and 50 more
CVE-2022-41717

Excessive memory growth in net/http and golang.org/x/net/http2

An attacker can cause excessive memory growth in a Go server accepting HTTP/2 requests. HTTP/2 server connections contain a cache of HTTP header keys sent by the client. While the total number of entries in this cache is capped, an attacker sending very large keys can cause the server to allocate approximately 64 MiB per open connection.

CVSS 3.1 · 5.3 Medium EPSS 6.2% KEV · Not listed
Vendors
Fedoraproject Golang Redhat
Products
Fedora Go Http2 and 22 more