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12 vulnerabilities found for golang.org/x/net/http2 by golang.org/x/net
CVE-2026-33814 (GCVE-0-2026-33814)
Vulnerability from nvd – Published: 2026-05-07 19:41 – Updated: 2026-07-02 12:05
VLAI
Title
Infinite loop in HTTP/2 transport when given bad SETTINGS_MAX_FRAME_SIZE in net/http/internal/http2 in golang.org/x/net
Summary
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.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
15 references
| URL | Tags |
|---|---|
| https://go.dev/cl/761581 | |
| https://go.dev/cl/761640 | |
| https://go.dev/issue/78476 | |
| https://groups.google.com/g/golang-announce/c/qcC… | |
| https://pkg.go.dev/vuln/GO-2026-4918 | |
| https://access.redhat.com/security/cve/CVE-2026-33814 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2467815 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
| https://access.redhat.com/errata/RHSA-2026:34342 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:23262 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:23264 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:33120 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:33123 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:33142 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:33150 | vendor-advisoryx_refsource_REDHAT |
Impacted products
15 products
| Vendor | Product | Version | |
|---|---|---|---|
| golang.org/x/net | golang.org/x/net/http2 |
Affected:
0 , < 0.53.0
(semver)
|
|
| Go standard library | net/http |
Affected:
0 , < 1.25.10
(semver)
Affected: 1.26.0-0 , < 1.26.3 (semver) |
|
| Red Hat | Cluster Observability Operator 1.5.0 |
cpe:/a:redhat:cluster_observability_operator:1.5::el9 |
|
| Red Hat | Red Hat Hardened Images |
cpe:/a:redhat:hummingbird:1 |
|
| Red Hat | Red Hat OpenShift Service Mesh 3.0 |
cpe:/a:redhat:service_mesh:3.0::el9 |
|
| Red Hat | Red Hat OpenShift Service Mesh 3.1 |
cpe:/a:redhat:service_mesh:3.1::el9 |
|
| Red Hat | Red Hat OpenShift Service Mesh 3.2 |
cpe:/a:redhat:service_mesh:3.2::el9 |
|
| Red Hat | Red Hat OpenShift Service Mesh 3.3 |
cpe:/a:redhat:service_mesh:3.3::el9 |
|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9 |
|
| Red Hat | Red Hat Enterprise Linux AI (RHEL AI) 3 |
cpe:/a:redhat:enterprise_linux_ai:3 |
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4 |
|
| Red Hat | Red Hat OpenShift Virtualization 4 |
cpe:/a:redhat:container_native_virtualization:4 |
|
| Red Hat | OpenShift Service Mesh 2 |
cpe:/a:redhat:service_mesh:2 |
Credits
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CVE-2026-27141 (GCVE-0-2026-27141)
Vulnerability from nvd – Published: 2026-02-26 18:50 – Updated: 2026-02-27 19:11
VLAI
Title
Sending certain HTTP/2 frames can cause a server to panic in golang.org/x/net
Summary
Due to missing nil check, sending 0x0a-0x0f HTTP/2 frames will cause a running server to panic
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| golang.org/x/net | golang.org/x/net/http2 |
Affected:
0.50.0 , < 0.51.0
(semver)
|
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"status": "affected",
"version": "0.50.0",
"versionType": "semver"
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}
],
"descriptions": [
{
"lang": "en",
"value": "Due to missing nil check, sending 0x0a-0x0f HTTP/2 frames will cause a running server to panic"
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "CWE-476: NULL Pointer Dereference",
"lang": "en"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-02-26T18:50:31.830Z",
"orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
"shortName": "Go"
},
"references": [
{
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-27141"
},
{
"url": "https://go.dev/cl/746180"
},
{
"url": "https://go.dev/issue/77652"
},
{
"url": "https://pkg.go.dev/vuln/GO-2026-4559"
}
],
"title": "Sending certain HTTP/2 frames can cause a server to panic in golang.org/x/net"
}
},
"cveMetadata": {
"assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
"assignerShortName": "Go",
"cveId": "CVE-2026-27141",
"datePublished": "2026-02-26T18:50:31.830Z",
"dateReserved": "2026-02-17T19:57:28.435Z",
"dateUpdated": "2026-02-27T19:11:57.260Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2023-45288 (GCVE-0-2023-45288)
Vulnerability from nvd – Published: 2024-04-04 20:37 – Updated: 2025-11-04 18:17
VLAI
Title
HTTP/2 CONTINUATION flood in net/http
Summary
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.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
9 references
Impacted products
4 products
| Vendor | Product | Version | |
|---|---|---|---|
| Go standard library | net/http |
Affected:
0 , < 1.21.9
(semver)
Affected: 1.22.0-0 , < 1.22.2 (semver) |
|
| golang.org/x/net | golang.org/x/net/http2 |
Affected:
0 , < 0.23.0
(semver)
|
|
| go_standard_library | net\/http |
Affected:
0 , < 1.21.9
(custom)
Affected: 1.22.0-0 , < 1.22.2 (custom) cpe:2.3:a:go_standard_library:net\/http:*:*:*:*:*:*:*:* |
|
| golang | http2 |
Affected:
0 , < 0.23.0
(custom)
cpe:2.3:a:golang:http2:*:*:*:*:*:*:*:* |
Credits
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"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
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"scope": "UNCHANGED",
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
"name": "Get"
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{
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{
"name": "Head"
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{
"name": "Header.Add"
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{
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{
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{
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{
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{
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{
"name": "Post"
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{
"name": "PostForm"
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{
"name": "ProxyFromEnvironment"
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{
"name": "ReadRequest"
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{
"name": "ReadResponse"
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{
"name": "Redirect"
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{
"name": "Request.AddCookie"
},
{
"name": "Request.BasicAuth"
},
{
"name": "Request.FormFile"
},
{
"name": "Request.FormValue"
},
{
"name": "Request.MultipartReader"
},
{
"name": "Request.ParseForm"
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{
"name": "Request.ParseMultipartForm"
},
{
"name": "Request.PostFormValue"
},
{
"name": "Request.Referer"
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{
"name": "Request.SetBasicAuth"
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{
"name": "Request.UserAgent"
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{
"name": "Request.Write"
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{
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{
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{
"name": "Response.Location"
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{
"name": "Response.Write"
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{
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{
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{
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{
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{
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{
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{
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{
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{
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]
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"product": "golang.org/x/net/http2",
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"name": "ConfigureTransports"
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{
"name": "ErrCode.String"
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{
"name": "FrameHeader.String"
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{
"name": "FrameType.String"
},
{
"name": "FrameWriteRequest.String"
},
{
"name": "Framer.ReadFrame"
},
{
"name": "Framer.WriteContinuation"
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{
"name": "Framer.WriteData"
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{
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{
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"name": "Framer.WriteHeaders"
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{
"name": "Framer.WritePriority"
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{
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{
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},
{
"name": "Framer.WriteRawFrame"
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{
"name": "Framer.WriteSettings"
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{
"name": "Framer.WriteWindowUpdate"
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{
"name": "GoAwayError.Error"
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{
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{
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{
"name": "SettingID.String"
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{
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{
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{
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{
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"name": "chunkWriter.Write"
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{
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{
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{
"name": "noDialH2RoundTripper.RoundTrip"
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"name": "priorityWriteScheduler.OpenStream"
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"name": "requestBody.Close"
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"name": "requestBody.Read"
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{
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{
"name": "responseWriter.FlushError"
},
{
"name": "responseWriter.Push"
},
{
"name": "responseWriter.SetReadDeadline"
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{
"name": "responseWriter.SetWriteDeadline"
},
{
"name": "responseWriter.Write"
},
{
"name": "responseWriter.WriteHeader"
},
{
"name": "responseWriter.WriteString"
},
{
"name": "roundRobinWriteScheduler.OpenStream"
},
{
"name": "serverConn.CloseConn"
},
{
"name": "serverConn.Flush"
},
{
"name": "stickyErrWriter.Write"
},
{
"name": "transportResponseBody.Close"
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{
"name": "transportResponseBody.Read"
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{
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"credits": [
{
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"value": "Bartek Nowotarski (https://nowotarski.info/)"
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],
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CVE-2023-39325 (GCVE-0-2023-39325)
Vulnerability from nvd – Published: 2023-10-11 21:15 – Updated: 2025-02-13 17:02
VLAI
Title
HTTP/2 rapid reset can cause excessive work in net/http
Summary
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.
Severity
No CVSS data available.
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
43 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Go standard library | net/http |
Affected:
0 , < 1.20.10
(semver)
Affected: 1.21.0-0 , < 1.21.3 (semver) |
|
| golang.org/x/net | golang.org/x/net/http2 |
Affected:
0 , < 0.17.0
(semver)
|
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CVE-2022-41723 (GCVE-0-2022-41723)
Vulnerability from nvd – Published: 2023-02-28 17:19 – Updated: 2025-05-05 16:12
VLAI
Title
Denial of service via crafted HTTP/2 stream in net/http and golang.org/x/net
Summary
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.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE 400: Uncontrolled Resource Consumption
- NVD-CWE-Other
Assigner
References
15 references
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| Go standard library | net/http |
Affected:
0 , < 1.19.6
(semver)
Affected: 1.20.0-0 , < 1.20.1 (semver) |
|
| golang.org/x/net | golang.org/x/net/http2 |
Affected:
0 , < 0.7.0
(semver)
|
|
| golang.org/x/net | golang.org/x/net/http2/hpack |
Affected:
0 , < 0.7.0
(semver)
|
Credits
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CVE-2022-41717 (GCVE-0-2022-41717)
Vulnerability from nvd – Published: 2022-12-08 19:03 – Updated: 2025-02-13 16:33
VLAI
Title
Excessive memory growth in net/http and golang.org/x/net/http2
Summary
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.
Severity
No CVSS data available.
CWE
- CWE 400: Uncontrolled Resource Consumption
Assigner
References
24 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Go standard library | net/http |
Affected:
0 , < 1.18.9
(semver)
Affected: 1.19.0-0 , < 1.19.4 (semver) |
|
| golang.org/x/net | golang.org/x/net/http2 |
Affected:
0 , < 0.4.0
(semver)
|
Credits
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},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/REMHVVIBDNKSRKNOTV7EQSB7CYQWOUOU/"
},
{
"url": "https://security.gentoo.org/glsa/202311-09"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CSVIS6MTMFVBA7JPMRAUNKUOYEVSJYSB/"
},
{
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{
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{
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],
"title": "Excessive memory growth in net/http and golang.org/x/net/http2"
}
},
"cveMetadata": {
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"datePublished": "2022-12-08T19:03:53.161Z",
"dateReserved": "2022-09-28T17:00:06.608Z",
"dateUpdated": "2025-02-13T16:33:08.284Z",
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CVE-2026-33814 (GCVE-0-2026-33814)
Vulnerability from cvelistv5 – Published: 2026-05-07 19:41 – Updated: 2026-07-02 12:05
VLAI
Title
Infinite loop in HTTP/2 transport when given bad SETTINGS_MAX_FRAME_SIZE in net/http/internal/http2 in golang.org/x/net
Summary
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.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
15 references
| URL | Tags |
|---|---|
| https://go.dev/cl/761581 | |
| https://go.dev/cl/761640 | |
| https://go.dev/issue/78476 | |
| https://groups.google.com/g/golang-announce/c/qcC… | |
| https://pkg.go.dev/vuln/GO-2026-4918 | |
| https://access.redhat.com/security/cve/CVE-2026-33814 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2467815 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
| https://access.redhat.com/errata/RHSA-2026:34342 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:23262 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:23264 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:33120 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:33123 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:33142 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:33150 | vendor-advisoryx_refsource_REDHAT |
Impacted products
15 products
| Vendor | Product | Version | |
|---|---|---|---|
| golang.org/x/net | golang.org/x/net/http2 |
Affected:
0 , < 0.53.0
(semver)
|
|
| Go standard library | net/http |
Affected:
0 , < 1.25.10
(semver)
Affected: 1.26.0-0 , < 1.26.3 (semver) |
|
| Red Hat | Cluster Observability Operator 1.5.0 |
cpe:/a:redhat:cluster_observability_operator:1.5::el9 |
|
| Red Hat | Red Hat Hardened Images |
cpe:/a:redhat:hummingbird:1 |
|
| Red Hat | Red Hat OpenShift Service Mesh 3.0 |
cpe:/a:redhat:service_mesh:3.0::el9 |
|
| Red Hat | Red Hat OpenShift Service Mesh 3.1 |
cpe:/a:redhat:service_mesh:3.1::el9 |
|
| Red Hat | Red Hat OpenShift Service Mesh 3.2 |
cpe:/a:redhat:service_mesh:3.2::el9 |
|
| Red Hat | Red Hat OpenShift Service Mesh 3.3 |
cpe:/a:redhat:service_mesh:3.3::el9 |
|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9 |
|
| Red Hat | Red Hat Enterprise Linux AI (RHEL AI) 3 |
cpe:/a:redhat:enterprise_linux_ai:3 |
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4 |
|
| Red Hat | Red Hat OpenShift Virtualization 4 |
cpe:/a:redhat:container_native_virtualization:4 |
|
| Red Hat | OpenShift Service Mesh 2 |
cpe:/a:redhat:service_mesh:2 |
Credits
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},
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},
{
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"title": "Infinite loop in HTTP/2 transport when given bad SETTINGS_MAX_FRAME_SIZE in net/http/internal/http2 in golang.org/x/net"
}
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CVE-2026-27141 (GCVE-0-2026-27141)
Vulnerability from cvelistv5 – Published: 2026-02-26 18:50 – Updated: 2026-02-27 19:11
VLAI
Title
Sending certain HTTP/2 frames can cause a server to panic in golang.org/x/net
Summary
Due to missing nil check, sending 0x0a-0x0f HTTP/2 frames will cause a running server to panic
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| golang.org/x/net | golang.org/x/net/http2 |
Affected:
0.50.0 , < 0.51.0
(semver)
|
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CVE-2023-45288 (GCVE-0-2023-45288)
Vulnerability from cvelistv5 – Published: 2024-04-04 20:37 – Updated: 2025-11-04 18:17
VLAI
Title
HTTP/2 CONTINUATION flood in net/http
Summary
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.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
9 references
Impacted products
4 products
| Vendor | Product | Version | |
|---|---|---|---|
| Go standard library | net/http |
Affected:
0 , < 1.21.9
(semver)
Affected: 1.22.0-0 , < 1.22.2 (semver) |
|
| golang.org/x/net | golang.org/x/net/http2 |
Affected:
0 , < 0.23.0
(semver)
|
|
| go_standard_library | net\/http |
Affected:
0 , < 1.21.9
(custom)
Affected: 1.22.0-0 , < 1.22.2 (custom) cpe:2.3:a:go_standard_library:net\/http:*:*:*:*:*:*:*:* |
|
| golang | http2 |
Affected:
0 , < 0.23.0
(custom)
cpe:2.3:a:golang:http2:*:*:*:*:*:*:*:* |
Credits
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CVE-2023-39325 (GCVE-0-2023-39325)
Vulnerability from cvelistv5 – Published: 2023-10-11 21:15 – Updated: 2025-02-13 17:02
VLAI
Title
HTTP/2 rapid reset can cause excessive work in net/http
Summary
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.
Severity
No CVSS data available.
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
43 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Go standard library | net/http |
Affected:
0 , < 1.20.10
(semver)
Affected: 1.21.0-0 , < 1.21.3 (semver) |
|
| golang.org/x/net | golang.org/x/net/http2 |
Affected:
0 , < 0.17.0
(semver)
|
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"value": "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."
}
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],
"title": "HTTP/2 rapid reset can cause excessive work in net/http"
}
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"cveId": "CVE-2023-39325",
"datePublished": "2023-10-11T21:15:02.727Z",
"dateReserved": "2023-07-27T17:05:55.188Z",
"dateUpdated": "2025-02-13T17:02:50.341Z",
"state": "PUBLISHED"
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CVE-2022-41723 (GCVE-0-2022-41723)
Vulnerability from cvelistv5 – Published: 2023-02-28 17:19 – Updated: 2025-05-05 16:12
VLAI
Title
Denial of service via crafted HTTP/2 stream in net/http and golang.org/x/net
Summary
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.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE 400: Uncontrolled Resource Consumption
- NVD-CWE-Other
Assigner
References
15 references
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| Go standard library | net/http |
Affected:
0 , < 1.19.6
(semver)
Affected: 1.20.0-0 , < 1.20.1 (semver) |
|
| golang.org/x/net | golang.org/x/net/http2 |
Affected:
0 , < 0.7.0
(semver)
|
|
| golang.org/x/net | golang.org/x/net/http2/hpack |
Affected:
0 , < 0.7.0
(semver)
|
Credits
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"confidentialityImpact": "NONE",
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"title": "Denial of service via crafted HTTP/2 stream in net/http and golang.org/x/net"
}
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"datePublished": "2023-02-28T17:19:45.801Z",
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CVE-2022-41717 (GCVE-0-2022-41717)
Vulnerability from cvelistv5 – Published: 2022-12-08 19:03 – Updated: 2025-02-13 16:33
VLAI
Title
Excessive memory growth in net/http and golang.org/x/net/http2
Summary
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.
Severity
No CVSS data available.
CWE
- CWE 400: Uncontrolled Resource Consumption
Assigner
References
24 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Go standard library | net/http |
Affected:
0 , < 1.18.9
(semver)
Affected: 1.19.0-0 , < 1.19.4 (semver) |
|
| golang.org/x/net | golang.org/x/net/http2 |
Affected:
0 , < 0.4.0
(semver)
|
Credits
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"title": "Excessive memory growth in net/http and golang.org/x/net/http2"
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