CWE-141
Improper Neutralization of Parameter/Argument Delimiters
The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could be interpreted as parameter or argument delimiters when they are sent to a downstream component.
CVE-2020-7868 (GCVE-0-2020-7868)
Vulnerability from cvelistv5
Published
2021-06-29 13:39
Modified
2024-08-04 09:41
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-141 - Improper Neutralization of Parameter/Argument Delimiters
Summary
A remote code execution vulnerability exists in helpUS(remote administration tool) due to improper validation of parameter of ShellExecutionExA function used for login.
References
| URL | Tags | |
|---|---|---|
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CVE-2022-29872 (GCVE-0-2022-29872)
Vulnerability from cvelistv5
Published
2022-05-10 09:47
Modified
2025-12-09 10:32
Severity ?
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.7 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
8.7 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
VLAI Severity ?
EPSS score ?
CWE
- CWE-141 - Improper Neutralization of Parameter/Argument Delimiters
Summary
A vulnerability has been identified in SICAM T (All versions < V3.0). Affected devices do not properly validate parameters of POST requests. This could allow an authenticated attacker to set the device to a denial of service state or to control the program counter and, thus, execute arbitrary code on the device.
References
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CVE-2022-29873 (GCVE-0-2022-29873)
Vulnerability from cvelistv5
Published
2022-05-10 09:47
Modified
2025-12-09 10:33
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.3 (Critical) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
9.3 (Critical) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
VLAI Severity ?
EPSS score ?
CWE
- CWE-141 - Improper Neutralization of Parameter/Argument Delimiters
Summary
A vulnerability has been identified in SICAM T (All versions < V3.0). Affected devices do not properly validate parameters of certain GET and POST requests. This could allow an unauthenticated attacker to set the device to a denial of service state or to control the program counter and, thus, execute arbitrary code on the device.
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CVE-2022-41665 (GCVE-0-2022-41665)
Vulnerability from cvelistv5
Published
2022-10-11 00:00
Modified
2025-12-09 10:44
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-141 - Improper Neutralization of Parameter/Argument Delimiters
Summary
A vulnerability has been identified in SICAM P850 (7KG8500-0AA00-0AA0) (All versions < V3.10), SICAM P850 (7KG8500-0AA00-2AA0) (All versions < V3.10), SICAM P850 (7KG8500-0AA10-0AA0) (All versions < V3.10), SICAM P850 (7KG8500-0AA10-2AA0) (All versions < V3.10), SICAM P850 (7KG8500-0AA30-0AA0) (All versions < V3.10), SICAM P850 (7KG8500-0AA30-2AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA01-0AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA01-2AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA02-0AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA02-2AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA11-0AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA11-2AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA12-0AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA12-2AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA31-0AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA31-2AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA32-0AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA32-2AA0) (All versions < V3.10), SICAM P855 (7KG8550-0AA00-0AA0) (All versions < V3.10), SICAM P855 (7KG8550-0AA00-2AA0) (All versions < V3.10), SICAM P855 (7KG8550-0AA10-0AA0) (All versions < V3.10), SICAM P855 (7KG8550-0AA10-2AA0) (All versions < V3.10), SICAM P855 (7KG8550-0AA30-0AA0) (All versions < V3.10), SICAM P855 (7KG8550-0AA30-2AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA01-0AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA01-2AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA02-0AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA02-2AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA11-0AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA11-2AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA12-0AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA12-2AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA31-0AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA31-2AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA32-0AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA32-2AA0) (All versions < V3.10), SICAM T (All versions < V3.0). Affected devices do not properly validate the parameter of a specific GET request. This could allow an unauthenticated attacker to set the device to a denial of service state or to control the program counter and, thus, execute arbitrary code on the device.
References
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Siemens | SICAM P850 |
Version: All versions < V3.10 |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
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"vendor": "Siemens",
"versions": [
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"status": "affected",
"version": "All versions \u003c V3.10"
}
]
},
{
"defaultStatus": "unknown",
"product": "SICAM P850",
"vendor": "Siemens",
"versions": [
{
"status": "affected",
"version": "All versions \u003c V3.10"
}
]
},
{
"defaultStatus": "unknown",
"product": "SICAM P850",
"vendor": "Siemens",
"versions": [
{
"status": "affected",
"version": "All versions \u003c V3.10"
}
]
},
{
"defaultStatus": "unknown",
"product": "SICAM P850",
"vendor": "Siemens",
"versions": [
{
"status": "affected",
"version": "All versions \u003c V3.10"
}
]
},
{
"defaultStatus": "unknown",
"product": "SICAM P855",
"vendor": "Siemens",
"versions": [
{
"status": "affected",
"version": "All versions \u003c V3.10"
}
]
},
{
"defaultStatus": "unknown",
"product": "SICAM P855",
"vendor": "Siemens",
"versions": [
{
"status": "affected",
"version": "All versions \u003c V3.10"
}
]
},
{
"defaultStatus": "unknown",
"product": "SICAM P855",
"vendor": "Siemens",
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},
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},
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"vendor": "Siemens",
"versions": [
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},
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"vendor": "Siemens",
"versions": [
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"version": "All versions \u003c V3.10"
}
]
},
{
"defaultStatus": "unknown",
"product": "SICAM P855",
"vendor": "Siemens",
"versions": [
{
"status": "affected",
"version": "All versions \u003c V3.10"
}
]
},
{
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"vendor": "Siemens",
"versions": [
{
"status": "affected",
"version": "All versions \u003c V3.10"
}
]
},
{
"defaultStatus": "unknown",
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"vendor": "Siemens",
"versions": [
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]
},
{
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{
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"versions": [
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"version": "All versions \u003c V3.10"
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]
},
{
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"product": "SICAM P855",
"vendor": "Siemens",
"versions": [
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}
]
},
{
"defaultStatus": "unknown",
"product": "SICAM P855",
"vendor": "Siemens",
"versions": [
{
"status": "affected",
"version": "All versions \u003c V3.10"
}
]
},
{
"defaultStatus": "unknown",
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"vendor": "Siemens",
"versions": [
{
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]
},
{
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"versions": [
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{
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"product": "SICAM T",
"vendor": "Siemens",
"versions": [
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"lessThan": "V3.0",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
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CVE-2024-0840 (GCVE-0-2024-0840)
Vulnerability from cvelistv5
Published
2024-04-29 18:42
Modified
2024-08-01 18:18
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-141 - Improper Neutralization of Parameter/Argument Delimiters
Summary
The Grandstream UCM Series IP PBX before firmware version 1.0.20.52 is affected by a parameter injection vulnerability in the HTTP interface. A remote and authenticated attacker can execute arbitrary code by sending a crafted HTTP request. Authentication may be possible using a default user and password. Affected models are the UCM6202, UCM6204, UCM6208, and UCM6510.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Grandstream | UCM Series |
Version: 0 < <1.0.20.52 |
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CVE-2025-20338 (GCVE-0-2025-20338)
Vulnerability from cvelistv5
Published
2025-09-24 17:14
Modified
2026-02-26 17:48
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-141 - Improper Neutralization of Parameter/Argument Delimiters
Summary
A vulnerability in the CLI of Cisco IOS XE Software could allow an authenticated, local attacker with administrative privileges to execute arbitrary commands as root on the underlying operating system of an affected device.
This vulnerability is due to insufficient validation of user arguments that are passed to specific CLI commands. An attacker could exploit this vulnerability by logging in to the device CLI with valid administrative (level 15) credentials and using crafted commands at the CLI prompt. A successful exploit could allow the attacker to execute arbitrary commands as root.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Cisco | Cisco IOS XE Software |
Version: 3.5.0E Version: 3.5.1E Version: 3.5.2E Version: 3.5.3E Version: 3.11.1S Version: 3.11.2S Version: 3.11.0S Version: 3.11.3S Version: 3.11.4S Version: 3.12.0S Version: 3.12.1S Version: 3.12.2S Version: 3.12.3S Version: 3.12.0aS Version: 3.12.4S Version: 3.13.0S Version: 3.13.1S Version: 3.13.2S Version: 3.13.3S Version: 3.13.4S Version: 3.13.5S Version: 3.13.2aS Version: 3.13.0aS Version: 3.13.5aS Version: 3.13.6S Version: 3.13.7S Version: 3.13.6aS Version: 3.13.7aS Version: 3.13.8S Version: 3.13.9S Version: 3.13.10S Version: 3.6.0E Version: 3.6.1E Version: 3.6.2aE Version: 3.6.2E Version: 3.6.3E Version: 3.6.4E Version: 3.6.5E Version: 3.6.6E Version: 3.6.5aE Version: 3.6.7E Version: 3.6.8E Version: 3.6.7bE Version: 3.6.9E Version: 3.6.10E Version: 3.14.0S Version: 3.14.1S Version: 3.14.2S Version: 3.14.3S Version: 3.14.4S Version: 3.15.0S Version: 3.15.1S Version: 3.15.2S Version: 3.15.1cS Version: 3.15.3S Version: 3.15.4S Version: 3.7.0E Version: 3.7.1E Version: 3.7.2E 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{
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{
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{
"other": {
"content": {
"id": "CVE-2025-20338",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-09-25T03:55:59.851418Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-02-26T17:48:00.835Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
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CVE-2025-31329 (GCVE-0-2025-31329)
Vulnerability from cvelistv5
Published
2025-05-13 00:16
Modified
2025-05-13 13:55
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-141 - Improper Neutralization of Parameter/Argument Delimiters
Summary
SAP NetWeaver is vulnerable to an Information Disclosure vulnerability caused by the injection of malicious instructions into user configuration settings. An attacker with administrative privileges can craft these instructions so that when accessed by the victim, sensitive information such as user credentials is exposed. These credentials may then be used to gain unauthorized access to local or adjacent systems. This results in high impact to Confidentiality, with no significant effect on Integrity or Availability.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| SAP_SE | SAP NetWeaver Application Server ABAP and ABAP Platform |
Version: SAP_BASIS 700 Version: SAP_BASIS 701 Version: SAP_BASIS 702 Version: SAP_BASIS 731 Version: SAP_BASIS 740 Version: SAP_BASIS 750 Version: SAP_BASIS 751 Version: SAP_BASIS 752 Version: SAP_BASIS 753 Version: SAP_BASIS 754 Version: SAP_BASIS 755 Version: SAP_BASIS 756 Version: SAP_BASIS 757 Version: SAP_BASIS 758 |
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CVE-2026-19594 (GCVE-0-2026-19594)
Vulnerability from cvelistv5
Published
2026-08-12 05:22
Modified
2026-08-12 12:33
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
Insufficient input sanitization in Snowflake Python API (`snowflake.core`) versions prior to 1.13.0 allowed confused-deputy privilege escalation through two related weaknesses: path traversal (CWE-22) via unencoded `..` identifier path segments, and HTTP parameter pollution (CWE-141) via unencoded `&`/`#`/`=` characters in query string values. An attacker with access to a downstream application built on snowflake.core could exploit the path traversal by supplying `..` as an object name, causing `snowflake.core` to issue REST requests against a parent resource or exploit the parameter pollution by injecting `&`/`#`/`=` into a free-form name field to override constraints on swap, clone, or rename operations — all executed under the application's privileged session. Successful exploitation requires the attacker to control an identifier or object-name string in an application built on snowflake.core that passes it to `snowflake.core` under a higher-privileged Snowflake session (e.g., an EXECUTE AS OWNER stored procedure, Streamlit app, or Native App). The fix is available in Snowflake Python API version 1.13.0, which also addresses several additional security findings. Users must manually upgrade.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Snowflake | Snowflake Python APIs |
Version: 0 |
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CVE-2026-20200 (GCVE-0-2026-20200)
Vulnerability from cvelistv5
Published
2026-08-05 16:18
Modified
2026-08-06 03:55
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-141 - Improper Neutralization of Parameter/Argument Delimiters
Summary
A vulnerability in the web-based management interface of Cisco IMC could allow an authenticated, remote attacker with low privileges to execute arbitrary commands on the underlying operating system of an affected system and elevate privileges to root.
This vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by entering crafted inputs to the web-based management interface of the affected software. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system as the root user.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Cisco | Cisco Unified Computing System (Standalone) |
Version: 4.3(1.230097) Version: 4.3(1.230124) Version: 4.3(1.230138) Version: 4.3(2.230207) Version: 4.3(2.230270) Version: 4.3(2.240002) Version: 4.3(3.240022) Version: 4.3(3.240043) Version: 4.3(4.240142) Version: 4.3(4.240152) Version: 4.3(4.242028) Version: 4.3(4.241063) Version: 4.3(4.242038) Version: 4.3(5.240021) Version: 4.3(4.242066) Version: 4.3(5.250001) Version: 4.3(5.250030) Version: 4.3(6.250040) Version: 4.3(5.250033) Version: 4.3(6.250044) Version: 4.3(6.250053) Version: 4.3(4.252001) Version: 4.3(4.252002) Version: 6.0(1.250127) Version: 6.0(1.250131) Version: 4.3(6.250101) Version: 6.0(1.250174) Version: 4.3(6.250117) Version: 4.3(5.250043) Version: 4.3(6.250039) Version: 4.3(5.250045) Version: 4.3(6.250060) Version: 6.0(1.250130) Version: 4.3(4.241014) Version: 6.0(1.250192) Version: 4.3(6.260003) Version: 6.0(1.250194) Version: 4.3(6.260017) |
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CVE-2026-56813 (GCVE-0-2026-56813)
Vulnerability from cvelistv5
Published
2026-07-10 12:51
Modified
2026-07-10 14:45
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-141 - Improper Neutralization of Parameter/Argument Delimiters
Summary
Improper Neutralization of Parameter/Argument Delimiters vulnerability in elixir-plug plug allows an attacker to inject or override HTTP cookie attributes.
The Plug.Conn.Cookies.encode/2 function in lib/plug/conn/cookies.ex builds the Set-Cookie response header by interpolating the cookie value and its path, domain, same_site, and extra attributes directly into the header without neutralizing the ';' delimiter that separates cookie attributes.
An application that places attacker-controlled data into a cookie value or attribute (for example via Plug.Conn.put_resp_cookie/4 when reflecting a username or preference) lets an attacker inject a ';' to append or override cookie attributes (such as Domain and Path scope, or dropping the Secure and HttpOnly flags), enabling cookie tossing and session fixation. Carriage return, line feed, and null bytes are rejected by Plug.Conn header validation, so HTTP response splitting is not possible, but attribute injection through ';' is not prevented.
This issue affects plug: from 0.1.0 before 1.16.6, from 1.17.0 before 1.17.4, from 1.18.0 before 1.18.5, from 1.19.0 before 1.19.5, from 1.20.0 before 1.20.3.
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| elixir-plug | plug |
Version: 0.1.0 ≤ Version: 1.17.0 ≤ Version: 1.18.0 ≤ Version: 1.19.0 ≤ Version: 1.20.0 ≤ cpe:2.3:a:elixir-plug:plug:*:*:*:*:*:*:*:* |
|||||||
|
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"baseSeverity": "LOW",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "LOW",
"userInteraction": "NONE",
"vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "LOW"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-141",
"description": "CWE-141 Improper Neutralization of Parameter/Argument Delimiters",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-07-10T14:45:34.174Z",
"orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
"shortName": "EEF"
},
"references": [
{
"tags": [
"vendor-advisory",
"related"
],
"url": "https://github.com/elixir-plug/plug/security/advisories/GHSA-wpmj-jh88-rpgm"
},
{
"tags": [
"related"
],
"url": "https://cna.erlef.org/cves/CVE-2026-56813.html"
},
{
"tags": [
"related"
],
"url": "https://osv.dev/vulnerability/EEF-CVE-2026-56813"
},
{
"tags": [
"patch"
],
"url": "https://github.com/elixir-plug/plug/commit/c6575800b2c4e15af1904df87522ca8a23da020c"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "Cookie attribute injection in Plug.Conn.Cookies.encode/2",
"workarounds": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eValidate or reject the \u003ctt\u003e;\u003c/tt\u003e delimiter in any untrusted data before passing it as a cookie value or attribute to \u003ctt\u003ePlug.Conn.put_resp_cookie/4\u003c/tt\u003e or \u003ctt\u003ePlug.Conn.Cookies.encode/2\u003c/tt\u003e. Carriage return, line feed, and null bytes are already rejected by \u003ctt\u003ePlug.Conn\u003c/tt\u003e header validation.\u003c/p\u003e"
}
],
"value": "Validate or reject the \u0027;\u0027 delimiter in any untrusted data before passing it as a cookie value or attribute to Plug.Conn.put_resp_cookie/4 or Plug.Conn.Cookies.encode/2. Carriage return, line feed, and null bytes are already rejected by Plug.Conn header validation."
}
],
"x_generator": {
"engine": "cvelib 1.8.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
"assignerShortName": "EEF",
"cveId": "CVE-2026-56813",
"datePublished": "2026-07-10T12:51:08.758Z",
"dateReserved": "2026-06-23T12:29:02.507Z",
"dateUpdated": "2026-07-10T14:45:34.174Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
Mitigation
Phases:
Description:
- Developers should anticipate that parameter/argument delimiters will be injected/removed/manipulated in the input vectors of their product. Use an appropriate combination of denylists and allowlists to ensure only valid, expected and appropriate input is processed by the system.
Mitigation ID: MIT-5
Phase: Implementation
Strategy: Input Validation
Description:
- Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
- When performing input validation, consider all potentially relevant properties, including length, type of input, the full range of acceptable values, missing or extra inputs, syntax, consistency across related fields, and conformance to business rules. As an example of business rule logic, "boat" may be syntactically valid because it only contains alphanumeric characters, but it is not valid if the input is only expected to contain colors such as "red" or "blue."
- Do not rely exclusively on looking for malicious or malformed inputs. This is likely to miss at least one undesirable input, especially if the code's environment changes. This can give attackers enough room to bypass the intended validation. However, denylists can be useful for detecting potential attacks or determining which inputs are so malformed that they should be rejected outright.
Mitigation ID: MIT-28
Phase: Implementation
Strategy: Output Encoding
Description:
- While it is risky to use dynamically-generated query strings, code, or commands that mix control and data together, sometimes it may be unavoidable. Properly quote arguments and escape any special characters within those arguments. The most conservative approach is to escape or filter all characters that do not pass an extremely strict allowlist (such as everything that is not alphanumeric or white space). If some special characters are still needed, such as white space, wrap each argument in quotes after the escaping/filtering step. Be careful of argument injection (CWE-88).
Mitigation ID: MIT-20
Phase: Implementation
Strategy: Input Validation
Description:
- Inputs should be decoded and canonicalized to the application's current internal representation before being validated (CWE-180). Make sure that the application does not decode the same input twice (CWE-174). Such errors could be used to bypass allowlist validation schemes by introducing dangerous inputs after they have been checked.
No CAPEC attack patterns related to this CWE.