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10 vulnerabilities found for net/textproto by Go standard library
CVE-2026-42507 (GCVE-0-2026-42507)
Vulnerability from nvd – Published: 2026-06-02 22:01 – Updated: 2026-06-03 19:04
VLAI
Title
Arbitrary inputs are included in errors without any escaping in net/textproto
Summary
When returning errors, functions in the net/textproto package would include its input as part of the error. This might allow an attacker to inject misleading content to errors that are printed or logged.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-532 - Insertion of Sensitive Information into Log File
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Go standard library | net/textproto |
Affected:
0 , < 1.25.11
(semver)
Affected: 1.26.0-0 , < 1.26.4 (semver) |
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{
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"programRoutines": [
{
"name": "parseCodeLine"
},
{
"name": "Reader.ReadCodeLine"
},
{
"name": "readMIMEHeader"
},
{
"name": "Error.Error"
},
{
"name": "Reader.ReadMIMEHeader"
},
{
"name": "Reader.ReadResponse"
}
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"url": "https://go.dev/cl/777060"
},
{
"url": "https://groups.google.com/g/golang-announce/c/tKs3rmcBcKw"
},
{
"url": "https://pkg.go.dev/vuln/GO-2026-5039"
}
],
"title": "Arbitrary inputs are included in errors without any escaping in net/textproto"
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CVE-2025-61724 (GCVE-0-2025-61724)
Vulnerability from nvd – Published: 2025-10-29 22:10 – Updated: 2025-11-04 21:14
VLAI
Title
Excessive CPU consumption in Reader.ReadResponse in net/textproto
Summary
The Reader.ReadResponse function constructs a response string through repeated string concatenation of lines. When the number of lines in a response is large, this can cause excessive CPU consumption.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-407 - Inefficient Algorithmic Complexity
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Go standard library | net/textproto |
Affected:
0 , < 1.24.8
(semver)
Affected: 1.25.0 , < 1.25.2 (semver) |
Credits
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{
"collectionURL": "https://pkg.go.dev",
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"packageName": "net/textproto",
"product": "net/textproto",
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{
"name": "Reader.ReadResponse"
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],
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"lessThan": "1.24.8",
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"version": "1.25.0",
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{
"url": "https://go.dev/cl/709859"
},
{
"url": "https://go.dev/issue/75716"
},
{
"url": "https://groups.google.com/g/golang-announce/c/4Emdl2iQ_bI"
},
{
"url": "https://pkg.go.dev/vuln/GO-2025-4015"
}
],
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CVE-2023-45290 (GCVE-0-2023-45290)
Vulnerability from nvd – Published: 2024-03-05 22:22 – Updated: 2025-02-13 17:14
VLAI
Title
Memory exhaustion in multipart form parsing in net/textproto and net/http
Summary
When parsing a multipart form (either explicitly with Request.ParseMultipartForm or implicitly with Request.FormValue, Request.PostFormValue, or Request.FormFile), limits on the total size of the parsed form were not applied to the memory consumed while reading a single form line. This permits a maliciously crafted input containing very long lines to cause allocation of arbitrarily large amounts of memory, potentially leading to memory exhaustion. With fix, the ParseMultipartForm function now correctly limits the maximum size of form lines.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Go standard library | net/textproto |
Affected:
0 , < 1.21.8
(semver)
Affected: 1.22.0-0 , < 1.22.1 (semver) |
Credits
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{
"name": "Reader.readLineSlice"
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{
"name": "Reader.readContinuedLineSlice"
},
{
"name": "Reader.ReadCodeLine"
},
{
"name": "Reader.ReadContinuedLine"
},
{
"name": "Reader.ReadContinuedLineBytes"
},
{
"name": "Reader.ReadDotLines"
},
{
"name": "Reader.ReadLine"
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{
"name": "Reader.ReadLineBytes"
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"name": "Reader.ReadMIMEHeader"
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CVE-2023-24536 (GCVE-0-2023-24536)
Vulnerability from nvd – Published: 2023-04-06 15:50 – Updated: 2025-02-13 16:44
VLAI
Title
Excessive resource consumption in net/http, net/textproto and mime/multipart
Summary
Multipart form parsing can consume large amounts of CPU and memory when processing form inputs containing very large numbers of parts. This stems from several causes: 1. mime/multipart.Reader.ReadForm limits the total memory a parsed multipart form can consume. ReadForm can undercount the amount of memory consumed, leading it to accept larger inputs than intended. 2. Limiting total memory does not account for increased pressure on the garbage collector from large numbers of small allocations in forms with many parts. 3. ReadForm can allocate a large number of short-lived buffers, further increasing pressure on the garbage collector. The combination of these factors can permit an attacker to cause an program that parses multipart forms to consume large amounts of CPU and memory, potentially resulting in a denial of service. This affects programs that use mime/multipart.Reader.ReadForm, as well as form parsing in the net/http package with the Request methods FormFile, FormValue, ParseMultipartForm, and PostFormValue. With fix, ReadForm now does a better job of estimating the memory consumption of parsed forms, and performs many fewer short-lived allocations. In addition, the fixed mime/multipart.Reader imposes the following limits on the size of parsed forms: 1. Forms parsed with ReadForm may contain no more than 1000 parts. This limit may be adjusted with the environment variable GODEBUG=multipartmaxparts=. 2. Form parts parsed with NextPart and NextRawPart may contain no more than 10,000 header fields. In addition, forms parsed with ReadForm may contain no more than 10,000 header fields across all parts. This limit may be adjusted with the environment variable GODEBUG=multipartmaxheaders=.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Go standard library | mime/multipart |
Affected:
0 , < 1.19.8
(semver)
Affected: 1.20.0-0 , < 1.20.3 (semver) |
|
| Go standard library | net/textproto |
Affected:
0 , < 1.19.8
(semver)
Affected: 1.20.0-0 , < 1.20.3 (semver) |
Credits
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"cna": {
"affected": [
{
"collectionURL": "https://pkg.go.dev",
"defaultStatus": "unaffected",
"packageName": "mime/multipart",
"product": "mime/multipart",
"programRoutines": [
{
"name": "Reader.readForm"
},
{
"name": "mimeHeaderSize"
},
{
"name": "newPart"
},
{
"name": "Part.populateHeaders"
},
{
"name": "Reader.NextPart"
},
{
"name": "Reader.NextRawPart"
},
{
"name": "Reader.nextPart"
},
{
"name": "readMIMEHeader"
},
{
"name": "Reader.ReadForm"
}
],
"vendor": "Go standard library",
"versions": [
{
"lessThan": "1.19.8",
"status": "affected",
"version": "0",
"versionType": "semver"
},
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"lessThan": "1.20.3",
"status": "affected",
"version": "1.20.0-0",
"versionType": "semver"
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]
},
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"packageName": "net/textproto",
"product": "net/textproto",
"programRoutines": [
{
"name": "readMIMEHeader"
},
{
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"value": "Multipart form parsing can consume large amounts of CPU and memory when processing form inputs containing very large numbers of parts. This stems from several causes: 1. mime/multipart.Reader.ReadForm limits the total memory a parsed multipart form can consume. ReadForm can undercount the amount of memory consumed, leading it to accept larger inputs than intended. 2. Limiting total memory does not account for increased pressure on the garbage collector from large numbers of small allocations in forms with many parts. 3. ReadForm can allocate a large number of short-lived buffers, further increasing pressure on the garbage collector. The combination of these factors can permit an attacker to cause an program that parses multipart forms to consume large amounts of CPU and memory, potentially resulting in a denial of service. This affects programs that use mime/multipart.Reader.ReadForm, as well as form parsing in the net/http package with the Request methods FormFile, FormValue, ParseMultipartForm, and PostFormValue. With fix, ReadForm now does a better job of estimating the memory consumption of parsed forms, and performs many fewer short-lived allocations. In addition, the fixed mime/multipart.Reader imposes the following limits on the size of parsed forms: 1. Forms parsed with ReadForm may contain no more than 1000 parts. This limit may be adjusted with the environment variable GODEBUG=multipartmaxparts=. 2. Form parts parsed with NextPart and NextRawPart may contain no more than 10,000 header fields. In addition, forms parsed with ReadForm may contain no more than 10,000 header fields across all parts. This limit may be adjusted with the environment variable GODEBUG=multipartmaxheaders=."
}
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CVE-2023-24534 (GCVE-0-2023-24534)
Vulnerability from nvd – Published: 2023-04-06 15:50 – Updated: 2025-02-13 16:44
VLAI
Title
Excessive memory allocation in net/http and net/textproto
Summary
HTTP and MIME header parsing can allocate large amounts of memory, even when parsing small inputs, potentially leading to a denial of service. Certain unusual patterns of input data can cause the common function used to parse HTTP and MIME headers to allocate substantially more memory than required to hold the parsed headers. An attacker can exploit this behavior to cause an HTTP server to allocate large amounts of memory from a small request, potentially leading to memory exhaustion and a denial of service. With fix, header parsing now correctly allocates only the memory required to hold parsed headers.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Go standard library | net/textproto |
Affected:
0 , < 1.19.8
(semver)
Affected: 1.20.0-0 , < 1.20.3 (semver) |
Credits
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CVE-2026-42507 (GCVE-0-2026-42507)
Vulnerability from cvelistv5 – Published: 2026-06-02 22:01 – Updated: 2026-06-03 19:04
VLAI
Title
Arbitrary inputs are included in errors without any escaping in net/textproto
Summary
When returning errors, functions in the net/textproto package would include its input as part of the error. This might allow an attacker to inject misleading content to errors that are printed or logged.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-532 - Insertion of Sensitive Information into Log File
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Go standard library | net/textproto |
Affected:
0 , < 1.25.11
(semver)
Affected: 1.26.0-0 , < 1.26.4 (semver) |
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CVE-2025-61724 (GCVE-0-2025-61724)
Vulnerability from cvelistv5 – Published: 2025-10-29 22:10 – Updated: 2025-11-04 21:14
VLAI
Title
Excessive CPU consumption in Reader.ReadResponse in net/textproto
Summary
The Reader.ReadResponse function constructs a response string through repeated string concatenation of lines. When the number of lines in a response is large, this can cause excessive CPU consumption.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-407 - Inefficient Algorithmic Complexity
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Go standard library | net/textproto |
Affected:
0 , < 1.24.8
(semver)
Affected: 1.25.0 , < 1.25.2 (semver) |
Credits
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CVE-2023-45290 (GCVE-0-2023-45290)
Vulnerability from cvelistv5 – Published: 2024-03-05 22:22 – Updated: 2025-02-13 17:14
VLAI
Title
Memory exhaustion in multipart form parsing in net/textproto and net/http
Summary
When parsing a multipart form (either explicitly with Request.ParseMultipartForm or implicitly with Request.FormValue, Request.PostFormValue, or Request.FormFile), limits on the total size of the parsed form were not applied to the memory consumed while reading a single form line. This permits a maliciously crafted input containing very long lines to cause allocation of arbitrarily large amounts of memory, potentially leading to memory exhaustion. With fix, the ParseMultipartForm function now correctly limits the maximum size of form lines.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Go standard library | net/textproto |
Affected:
0 , < 1.21.8
(semver)
Affected: 1.22.0-0 , < 1.22.1 (semver) |
Credits
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"title": "Memory exhaustion in multipart form parsing in net/textproto and net/http"
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CVE-2023-24534 (GCVE-0-2023-24534)
Vulnerability from cvelistv5 – Published: 2023-04-06 15:50 – Updated: 2025-02-13 16:44
VLAI
Title
Excessive memory allocation in net/http and net/textproto
Summary
HTTP and MIME header parsing can allocate large amounts of memory, even when parsing small inputs, potentially leading to a denial of service. Certain unusual patterns of input data can cause the common function used to parse HTTP and MIME headers to allocate substantially more memory than required to hold the parsed headers. An attacker can exploit this behavior to cause an HTTP server to allocate large amounts of memory from a small request, potentially leading to memory exhaustion and a denial of service. With fix, header parsing now correctly allocates only the memory required to hold parsed headers.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Go standard library | net/textproto |
Affected:
0 , < 1.19.8
(semver)
Affected: 1.20.0-0 , < 1.20.3 (semver) |
Credits
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CVE-2023-24536 (GCVE-0-2023-24536)
Vulnerability from cvelistv5 – Published: 2023-04-06 15:50 – Updated: 2025-02-13 16:44
VLAI
Title
Excessive resource consumption in net/http, net/textproto and mime/multipart
Summary
Multipart form parsing can consume large amounts of CPU and memory when processing form inputs containing very large numbers of parts. This stems from several causes: 1. mime/multipart.Reader.ReadForm limits the total memory a parsed multipart form can consume. ReadForm can undercount the amount of memory consumed, leading it to accept larger inputs than intended. 2. Limiting total memory does not account for increased pressure on the garbage collector from large numbers of small allocations in forms with many parts. 3. ReadForm can allocate a large number of short-lived buffers, further increasing pressure on the garbage collector. The combination of these factors can permit an attacker to cause an program that parses multipart forms to consume large amounts of CPU and memory, potentially resulting in a denial of service. This affects programs that use mime/multipart.Reader.ReadForm, as well as form parsing in the net/http package with the Request methods FormFile, FormValue, ParseMultipartForm, and PostFormValue. With fix, ReadForm now does a better job of estimating the memory consumption of parsed forms, and performs many fewer short-lived allocations. In addition, the fixed mime/multipart.Reader imposes the following limits on the size of parsed forms: 1. Forms parsed with ReadForm may contain no more than 1000 parts. This limit may be adjusted with the environment variable GODEBUG=multipartmaxparts=. 2. Form parts parsed with NextPart and NextRawPart may contain no more than 10,000 header fields. In addition, forms parsed with ReadForm may contain no more than 10,000 header fields across all parts. This limit may be adjusted with the environment variable GODEBUG=multipartmaxheaders=.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Go standard library | mime/multipart |
Affected:
0 , < 1.19.8
(semver)
Affected: 1.20.0-0 , < 1.20.3 (semver) |
|
| Go standard library | net/textproto |
Affected:
0 , < 1.19.8
(semver)
Affected: 1.20.0-0 , < 1.20.3 (semver) |
Credits
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