CWE-93
Improper Neutralization of CRLF Sequences ('CRLF Injection')
The product uses CRLF (carriage return line feeds) as a special element, e.g. to separate lines or records, but it does not neutralize or incorrectly neutralizes CRLF sequences from inputs.
CVE-2026-29046 (GCVE-0-2026-29046)
Vulnerability from cvelistv5 – Published: 2026-03-06 02:54 – Updated: 2026-03-06 16:10
VLAI
Title
TinyWeb: HTTP Header Control Character Injection into CGI Environment
Summary
TinyWeb is a web server (HTTP, HTTPS) written in Delphi for Win32. Prior to version 2.04, TinyWeb accepts request header values and later maps them into CGI environment variables (HTTP_*). The parser did not strictly reject dangerous control characters in header lines and header values, including CR, LF, and NUL, and did not consistently defend against encoded forms such as %0d, %0a, and %00. This can enable header value confusion across parser boundaries and may create unsafe data in the CGI execution context. This issue has been patched in version 2.04.
Severity
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/maximmasiutin/TinyWeb/security… | x_refsource_CONFIRM |
| https://github.com/maximmasiutin/TinyWeb/commit/5… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| maximmasiutin | TinyWeb |
Affected:
< 2.04
|
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CVE-2026-30227 (GCVE-0-2026-30227)
Vulnerability from cvelistv5 – Published: 2026-03-06 21:07 – Updated: 2026-03-09 20:54
VLAI
Title
MimeKit: CRLF Injection in Quoted Local-Part Enables SMTP Command Injection and Email Forgery
Summary
MimeKit is a C# library which may be used for the creation and parsing of messages using the Multipurpose Internet Mail Extension (MIME), as defined by numerous IETF specifications. Prior to version 4.15.1, a CRLF injection vulnerability in MimeKit allows an attacker to embed \r\n into the SMTP envelope address local-part (when the local-part is a quoted-string). This is non-compliant with RFC 5321 and can result in SMTP command injection (e.g., injecting additional RCPT TO / DATA / RSET commands) and/or mail header injection, depending on how the application uses MailKit/MimeKit to construct and send messages. The issue becomes exploitable when the attacker can influence a MailboxAddress (MAIL FROM / RCPT TO) value that is later serialized to an SMTP session. RFC 5321 explicitly defines the SMTP mailbox local-part grammar and does not permit CR (13) or LF (10) inside Quoted-string (qtextSMTP and quoted-pairSMTP ranges exclude control characters). SMTP commands are terminated by <CRLF>, making CRLF injection in command arguments particularly dangerous. This issue has been patched in version 4.15.1.
Severity
CWE
- CWE-93 - Improper Neutralization of CRLF Sequences ('CRLF Injection')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/jstedfast/MimeKit/security/adv… | x_refsource_CONFIRM |
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CVE-2026-3234 (GCVE-0-2026-3234)
Vulnerability from cvelistv5 – Published: 2026-03-12 10:54 – Updated: 2026-03-12 13:15
VLAI
Title
Mod_proxy_cluster: mod_proxy_cluster: response body corruption via crlf injection
Summary
A flaw was found in mod_proxy_cluster. This vulnerability, a Carriage Return Line Feed (CRLF) injection in the decodeenc() function, allows a remote attacker to bypass input validation. By injecting CRLF sequences into the cluster configuration, an attacker can corrupt the response body of INFO endpoint responses. Exploitation requires network access to the MCMP protocol port, but no authentication is needed.
Severity
4.3 (Medium)
CWE
- CWE-93 - Improper Neutralization of CRLF Sequences ('CRLF Injection')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-3234 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2442889 | issue-trackingx_refsource_REDHAT |
Impacted products
4 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9 |
|
| Red Hat | Red Hat JBoss Core Services |
cpe:/a:redhat:jboss_core_services:1 |
|
| Red Hat | Red Hat JBoss Core Services |
cpe:/a:redhat:jboss_core_services:1 |
Date Public
2026-02-26 00:00
Credits
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CVE-2026-32964 (GCVE-0-2026-32964)
Vulnerability from cvelistv5 – Published: 2026-04-20 03:17 – Updated: 2026-04-20 14:08
VLAI
Summary
SD-330AC and AMC Manager provided by silex technology, Inc. contain an improper neutralization of CRLF sequences ('CRLF Injection') vulnerability. Processing some crafted configuration data may lead to arbitrary entries injected to the system configuration.
Severity
6.5 (Medium)
CWE
- CWE-93 - Improper neutralization of CRLF sequences ('CRLF Injection')
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| silex technology, Inc. | SD-330AC |
Affected:
Ver.1.42 and earlier
|
|
| silex technology, Inc. | AMC Manager |
Affected:
Ver.5.0.2 and earlier
|
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CVE-2026-32993 (GCVE-0-2026-32993)
Vulnerability from cvelistv5 – Published: 2026-05-13 22:06 – Updated: 2026-05-14 13:12
VLAI
Summary
Improper sanitization of the `status` query parameter of the `/unprotected/nova_error` endpoint allows unauthenticated attacker to inject arbitrary HTTP header to the response.
Severity
8.3 (High)
CWE
- CWE-93 - CRLF Injection
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| WebPros | cPanel |
Affected:
11.132.0.0 , < 11.132.0.32
(semver)
Affected: 11.134.0.0 , < 11.134.0.26 (semver) Affected: 11.136.0.0 , < 11.136.0.10 (semver) |
|
| WebPros | WP Squared |
Affected:
11.132.1.0 , < 11.136.1.12
(semver)
|
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CVE-2026-33128 (GCVE-0-2026-33128)
Vulnerability from cvelistv5 – Published: 2026-03-20 09:37 – Updated: 2026-03-20 11:40
VLAI
Title
h3 has a Server-Sent Events Injection via Unsanitized Newlines in Event Stream Fields
Summary
H3 is a minimal H(TTP) framework. In versions prior to 1.15.6 and between 2.0.0 through 2.0.1-rc.14, createEventStream is vulnerable to Server-Sent Events (SSE) injection due to missing newline sanitization in formatEventStreamMessage() and formatEventStreamComment(). An attacker who controls any part of an SSE message field (id, event, data, or comment) can inject arbitrary SSE events to connected clients. This issue is fixed in versions 1.15.6 and 2.0.1-rc.15.
Severity
7.5 (High)
CWE
- CWE-93 - Improper Neutralization of CRLF Sequences ('CRLF Injection')
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/h3js/h3/security/advisories/GH… | x_refsource_CONFIRM |
| https://github.com/h3js/h3/commit/7791538e15ca224… | x_refsource_MISC |
| https://github.com/h3js/h3/blob/52c82e18bb643d124… | x_refsource_MISC |
Impacted products
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CVE-2026-33635 (GCVE-0-2026-33635)
Vulnerability from cvelistv5 – Published: 2026-03-26 20:30 – Updated: 2026-03-30 11:33
VLAI
Title
iCalendar has ICS injection via unsanitized URI property values
Summary
iCalendar is a Ruby library for dealing with iCalendar files in the iCalendar format defined by RFC-5545. Starting in version 2.0.0 and prior to version 2.12.2, .ics serialization does not properly sanitize URI property values, enabling ICS injection through attacker-controlled input, adding arbitrary calendar lines to the output. `Icalendar::Values::Uri` falls back to the raw input string when `URI.parse` fails and later serializes it with `value.to_s` without removing or escaping `\r` or `\n` characters. That value is embedded directly into the final ICS line by the normal serializer, so a payload containing CRLF can terminate the original property and create a new ICS property or component. (It looks like you can inject via url, source, image, organizer, attach, attendee, conference, tzurl because of this). Applications that generate `.ics` files from partially untrusted metadata are impacted. As a result, downstream calendar clients or importers may process attacker-supplied content as if it were legitimate event data, such as added attendees, modified URLs, alarms, or other calendar fields. Version 2.12.2 contains a patch for the issue.
Severity
4.3 (Medium)
CWE
- CWE-93 - Improper Neutralization of CRLF Sequences ('CRLF Injection')
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/icalendar/icalendar/security/a… | x_refsource_CONFIRM |
| https://github.com/icalendar/icalendar/commit/b8d… | x_refsource_MISC |
| https://github.com/rubysec/ruby-advisory-db/blob/… | x_refsource_MISC |
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CVE-2026-34458 (GCVE-0-2026-34458)
Vulnerability from cvelistv5 – Published: 2026-05-05 19:24 – Updated: 2026-05-07 03:55
VLAI
Title
Sandboxie-Plus privilege escalation via INI CRLF injection bypassing EditAdminOnly
Summary
Sandboxie-Plus is an open source sandbox-based isolation software for Windows. In versions 1.17.2 and earlier, an INI injection vulnerability allows any standard local user to bypass configuration restrictions (EditAdminOnly and ConfigPassword) and inject arbitrary directives into the global Sandboxie.ini configuration file. The background service skips authorization checks for IPC messages targeting sections beginning with UserSettings_, but does not sanitize CRLF characters in either the value parameter (via MSGID_SBIE_INI_ADD_SETTING) or the setting name parameter (via MSGID_SBIE_INI_SET_SETTING). An attacker can inject a new sandbox section header with unrestricted permissions, enabling sandbox escape and SYSTEM privilege escalation. This issue has been fixed in version 1.17.3.
Severity
CWE
- CWE-93 - Improper Neutralization of CRLF Sequences ('CRLF Injection')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/sandboxie-plus/Sandboxie/secur… | x_refsource_CONFIRM |
| https://github.com/sandboxie-plus/Sandboxie/relea… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| sandboxie-plus | Sandboxie |
Affected:
< 1.17.3
|
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CVE-2026-34975 (GCVE-0-2026-34975)
Vulnerability from cvelistv5 – Published: 2026-04-06 16:10 – Updated: 2026-04-07 14:20
VLAI
Title
Plunk has a CRLF Email Header Injection in raw MIME message construction allows authenticated API user to inject arbitrary email headers
Summary
Plunk is an open-source email platform built on top of AWS SES. Prior to 0.8.0, a CRLF header injection vulnerability was discovered in SESService.ts, where user-supplied values for from.name, subject, custom header keys/values, and attachment filenames were interpolated directly into raw MIME messages without sanitization. An authenticated API user could inject arbitrary email headers (e.g. Bcc, Reply-To) by embedding carriage return/line feed characters in these fields, enabling silent email forwarding, reply redirection, or sender spoofing. The fix adds input validation at the schema level to reject any of these fields containing \r or \n characters, consistent with the existing validation already applied to the contentId field. This vulnerability is fixed in 0.8.0.
Severity
8.5 (High)
CWE
- CWE-93 - Improper Neutralization of CRLF Sequences ('CRLF Injection')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/useplunk/plunk/security/adviso… | x_refsource_CONFIRM |
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CVE-2026-35504 (GCVE-0-2026-35504)
Vulnerability from cvelistv5 – Published: 2026-05-12 20:19 – Updated: 2026-05-12 21:12
VLAI
Title
Subnet Solutions PowerSYSTEM Center CRLF injection
Summary
PowerSYSTEM Center email notification service is affected by a CRLF injection vulnerability when using SMTPS communication.
Severity
5.5 (Medium)
CWE
- CWE-93 - Improper neutralization of CRLF sequences ('CRLF injection')
Assigner
References
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| Subnet Solutions | PowerSYSTEM Center 2020 |
Affected:
0 , ≤ 5.28.x
(custom)
|
|
| Subnet Solutions | PowerSYSTEM Center 2024 |
Affected:
6.0.x , ≤ 6.1.x
(custom)
|
|
| Subnet Solutions | PowerSYSTEM Center 2026 |
Affected:
7.0.x
|
Date Public
2026-05-13 05:00
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Mitigation
Phase: Implementation
Description:
- Avoid using CRLF as a special sequence.
Mitigation
Phase: Implementation
Description:
- Appropriately filter or quote CRLF sequences in user-controlled input.
CAPEC-15: Command Delimiters
An attack of this type exploits a programs' vulnerabilities that allows an attacker's commands to be concatenated onto a legitimate command with the intent of targeting other resources such as the file system or database. The system that uses a filter or denylist input validation, as opposed to allowlist validation is vulnerable to an attacker who predicts delimiters (or combinations of delimiters) not present in the filter or denylist. As with other injection attacks, the attacker uses the command delimiter payload as an entry point to tunnel through the application and activate additional attacks through SQL queries, shell commands, network scanning, and so on.
CAPEC-81: Web Server Logs Tampering
Web Logs Tampering attacks involve an attacker injecting, deleting or otherwise tampering with the contents of web logs typically for the purposes of masking other malicious behavior. Additionally, writing malicious data to log files may target jobs, filters, reports, and other agents that process the logs in an asynchronous attack pattern. This pattern of attack is similar to "Log Injection-Tampering-Forging" except that in this case, the attack is targeting the logs of the web server and not the application.