Search criteria
9 vulnerabilities by golang.org/x/net
CVE-2025-22872 (GCVE-0-2025-22872)
Vulnerability from cvelistv5 – Published: 2025-04-16 17:13 – Updated: 2025-05-16 23:03
VLAI?
Summary
The tokenizer incorrectly interprets tags with unquoted attribute values that end with a solidus character (/) as self-closing. When directly using Tokenizer, this can result in such tags incorrectly being marked as self-closing, and when using the Parse functions, this can result in content following such tags as being placed in the wrong scope during DOM construction, but only when tags are in foreign content (e.g. <math>, <svg>, etc contexts).
Severity ?
6.5 (Medium)
CWE
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| golang.org/x/net | golang.org/x/net/html |
Affected:
0 , < 0.38.0
(semver)
|
Credits
Sean Ng (https://ensy.zip)
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"collectionURL": "https://pkg.go.dev",
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"packageName": "golang.org/x/net/html",
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"programRoutines": [
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"name": "Tokenizer.readStartTag"
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{
"name": "Parse"
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{
"name": "ParseFragment"
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{
"name": "ParseFragmentWithOptions"
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{
"name": "ParseWithOptions"
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"name": "Tokenizer.Next"
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},
{
"url": "https://pkg.go.dev/vuln/GO-2025-3595"
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"title": "Incorrect Neutralization of Input During Web Page Generation in x/net in golang.org/x/net"
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CVE-2025-22870 (GCVE-0-2025-22870)
Vulnerability from cvelistv5 – Published: 2025-03-12 18:27 – Updated: 2025-05-09 20:03
VLAI?
Summary
Matching of hosts against proxy patterns can improperly treat an IPv6 zone ID as a hostname component. For example, when the NO_PROXY environment variable is set to "*.example.com", a request to "[::1%25.example.com]:80` will incorrectly match and not be proxied.
Severity ?
4.4 (Medium)
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| golang.org/x/net | golang.org/x/net/http/httpproxy |
Affected:
0 , < 0.36.0
(semver)
|
|||||||
|
|||||||||
Credits
Juho Forsén of Mattermost
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"url": "https://go.dev/issue/71984"
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"url": "https://pkg.go.dev/vuln/GO-2025-3503"
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"title": "HTTP Proxy bypass using IPv6 Zone IDs in golang.org/x/net"
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CVE-2024-45338 (GCVE-0-2024-45338)
Vulnerability from cvelistv5 – Published: 2024-12-18 20:38 – Updated: 2025-02-21 18:03
VLAI?
Summary
An attacker can craft an input to the Parse functions that would be processed non-linearly with respect to its length, resulting in extremely slow parsing. This could cause a denial of service.
Severity ?
5.3 (Medium)
CWE
- CWE-405 - Asymmetric Resource Consumption (Amplification)
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| golang.org/x/net | golang.org/x/net/html |
Affected:
0 , < 0.33.0
(semver)
|
Credits
Guido Vranken
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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?
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)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Go standard library | net/http |
Affected:
0 , < 1.21.9
(semver)
Affected: 1.22.0-0 , < 1.22.2 (semver) |
|||||||
|
|||||||||
Credits
Bartek Nowotarski (https://nowotarski.info/)
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{
"name": "CanonicalHeaderKey"
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{
"name": "Client.CloseIdleConnections"
},
{
"name": "Client.Do"
},
{
"name": "Client.Get"
},
{
"name": "Client.Head"
},
{
"name": "Client.Post"
},
{
"name": "Client.PostForm"
},
{
"name": "Cookie.String"
},
{
"name": "Cookie.Valid"
},
{
"name": "Dir.Open"
},
{
"name": "Error"
},
{
"name": "Get"
},
{
"name": "HandlerFunc.ServeHTTP"
},
{
"name": "Head"
},
{
"name": "Header.Add"
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{
"name": "Request.FormFile"
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{
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{
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{
"name": "Request.Referer"
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{
"name": "Request.UserAgent"
},
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"name": "Request.Write"
},
{
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{
"name": "Response.Cookies"
},
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"name": "Response.Location"
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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?
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
| URL | Tags | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Go standard library | net/http |
Affected:
0 , < 1.20.10
(semver)
Affected: 1.21.0-0 , < 1.21.3 (semver) |
|||||||
|
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"title": "HTTP/2 rapid reset can cause excessive work in net/http"
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CVE-2023-3978 (GCVE-0-2023-3978)
Vulnerability from cvelistv5 – Published: 2023-08-02 19:48 – Updated: 2024-09-27 21:57
VLAI?
Summary
Text nodes not in the HTML namespace are incorrectly literally rendered, causing text which should be escaped to not be. This could lead to an XSS attack.
Severity ?
No CVSS data available.
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| golang.org/x/net | golang.org/x/net/html |
Affected:
0 , < 0.13.0
(semver)
|
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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?
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)
CWE
- CWE 400: Uncontrolled Resource Consumption
Assigner
References
| URL | Tags | |||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Go standard library | net/http |
Affected:
0 , < 1.19.6
(semver)
Affected: 1.20.0-0 , < 1.20.1 (semver) |
||||||||||||
|
||||||||||||||
Credits
Philippe Antoine (Catena cyber)
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CVE-2022-41721 (GCVE-0-2022-41721)
Vulnerability from cvelistv5 – Published: 2023-01-13 22:46 – Updated: 2025-04-04 14:46
VLAI?
Summary
A request smuggling attack is possible when using MaxBytesHandler. When using MaxBytesHandler, the body of an HTTP request is not fully consumed. When the server attempts to read HTTP2 frames from the connection, it will instead be reading the body of the HTTP request, which could be attacker-manipulated to represent arbitrary HTTP2 requests.
Severity ?
7.5 (High)
CWE
- CWE 444: Inconsistent Interpretation of HTTP Requests ("HTTP Request/Response Smuggling)
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| golang.org/x/net | golang.org/x/net/http2/h2c |
Affected:
0.0.0-20220524220425-1d687d428aca , < 0.1.1-0.20221104162952-702349b0e862
(semver)
|
Credits
John Howard (Google)
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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?
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
| URL | Tags | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Go standard library | net/http |
Affected:
0 , < 1.18.9
(semver)
Affected: 1.19.0-0 , < 1.19.4 (semver) |
|||||||
|
|||||||||
Credits
Josselin Costanzi
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"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5RSKA2II6QTD4YUKUNDVJQSRYSFC4VFR/"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://pkg.go.dev",
"defaultStatus": "unaffected",
"packageName": "net/http",
"product": "net/http",
"programRoutines": [
{
"name": "http2serverConn.canonicalHeader"
},
{
"name": "ListenAndServe"
},
{
"name": "ListenAndServeTLS"
},
{
"name": "Serve"
},
{
"name": "ServeTLS"
},
{
"name": "Server.ListenAndServe"
},
{
"name": "Server.ListenAndServeTLS"
},
{
"name": "Server.Serve"
},
{
"name": "Server.ServeTLS"
},
{
"name": "http2Server.ServeConn"
}
],
"vendor": "Go standard library",
"versions": [
{
"lessThan": "1.18.9",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"lessThan": "1.19.4",
"status": "affected",
"version": "1.19.0-0",
"versionType": "semver"
}
]
},
{
"collectionURL": "https://pkg.go.dev",
"defaultStatus": "unaffected",
"packageName": "golang.org/x/net/http2",
"product": "golang.org/x/net/http2",
"programRoutines": [
{
"name": "serverConn.canonicalHeader"
},
{
"name": "Server.ServeConn"
}
],
"vendor": "golang.org/x/net",
"versions": [
{
"lessThan": "0.4.0",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Josselin Costanzi"
}
],
"descriptions": [
{
"lang": "en",
"value": "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."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "CWE 400: Uncontrolled Resource Consumption",
"lang": "en"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2024-01-18T02:06:25.182Z",
"orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
"shortName": "Go"
},
"references": [
{
"url": "https://go.dev/issue/56350"
},
{
"url": "https://go.dev/cl/455717"
},
{
"url": "https://go.dev/cl/455635"
},
{
"url": "https://groups.google.com/g/golang-announce/c/L_3rmdT0BMU/m/yZDrXjIiBQAJ"
},
{
"url": "https://pkg.go.dev/vuln/GO-2022-1144"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QBKBAZBIOXZV5QCFHZNSVXULR32XJCYD/"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NQGNAXK3YBPMUP3J4TECIRDHFGW37522/"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PUM4DIVOLJCBK5ZDP4LJOL24GXT3YSIR/"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4SBIUECMLNC572P23DDOKJNKPJVX26SP/"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PW3XC47AUW5J5M2ULJX7WCCL3B2ETLMT/"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Q52IQI754YAE4XPR4QBRWPIVZWYGZ4FS/"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/56B2FFESRYYP6IY2AZ3UWXLWKZ5IYZN4/"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ANIOPUXWIHVRA6CEWXCGOMX3YYS6KFHG/"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WPEIZ7AMEJCZXU3FEJZMVRNHQZXX5P3I/"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4BUK2ZIAGCULOOYDNH25JPU6JBES5NF2/"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T7N5GV4CHH6WAGX3GFMDD3COEOVCZ4RI/"
},
{
"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/"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZSVEMQV5ROY5YW5QE3I57HT3ITWG5GCV/"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CHHITS4PUOZAKFIUBQAQZC7JWXMOYE4B/"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KEOTKBUPZXHE3F352JBYNTSNRXYLWD6P/"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5RSKA2II6QTD4YUKUNDVJQSRYSFC4VFR/"
}
],
"title": "Excessive memory growth in net/http and golang.org/x/net/http2"
}
},
"cveMetadata": {
"assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
"assignerShortName": "Go",
"cveId": "CVE-2022-41717",
"datePublished": "2022-12-08T19:03:53.161Z",
"dateReserved": "2022-09-28T17:00:06.608Z",
"dateUpdated": "2025-02-13T16:33:08.284Z",
"requesterUserId": "7d08541a-cd0a-42e2-8f81-76e6ceb65fc3",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}