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CWE-93

Improper Neutralization of CRLF Sequences ('CRLF Injection')

190 CVEs Avg CVSS 6.6 MITRE
19
CRITICAL
47
HIGH
111
MEDIUM
9
LOW
46
POC
0
KEV

Monthly

CVE-2026-90937 Sep 14, 13:19 CRITICAL PATCH Act Now

Configuration injection in the Froxlor hosting control panel (all versions before 2.2.5) lets an authenticated customer embed literal newline characters in a subdomain redirect URL, which are written verbatim into nginx or Apache vhost configuration files when the privileged cron job rebuilds them. Because the injected lines become active web server directives affecting other hosted domains on the same server, a low-privileged tenant can corrupt configs, cause denial of service, or hijack HTTP responses across co-hosted sites. This is a CWE-93 CRLF/newline-injection flaw; there is no public exploit identified at time of analysis and it is not listed in CISA KEV.

Denial Of Service Apache Nginx Froxlor
NVD GitHub
CVSS 4.0
9.4
CVE-2026-90767 Sep 13, 10:45 HIGH PATCH This Week

SSH key injection in Froxlor before 2.3.12 allows authenticated customers to write arbitrary lines into server-side authorized_keys files by embedding newline characters in SSH public key submissions to the SshKeys::add() API endpoint. An attacker with a valid customer account can plant SSH key entries bearing OpenSSH option directives (e.g., command=, from=, restrict) that persist beyond explicit key-deletion and access-revocation actions performed by administrators. No public exploit has been identified at time of analysis, but the vendor advisory confirms the flaw and the fix version.

Authentication Bypass Froxlor
NVD GitHub
CVSS 4.0
7.1
EPSS
0.2%
CVE-2026-48019 Sep 04, 22:11 HIGH PATCH This Week

CRLF injection in Laravel Framework (CWE-93) enables unauthenticated remote attackers to manipulate outbound email processing in any application that passes user-supplied email addresses to Laravel's mail functions. An attacker who can provide an email address to an application flow - such as registration, password reset, or contact forms - can embed carriage-return/line-feed sequences to inject additional SMTP headers, reroute messages to unintended recipients, or abuse the application's mail infrastructure as an open relay. The vendor has released patches in versions 12.60.0 and 13.10.0; no public exploit code or CISA KEV listing has been identified at time of analysis.

Laravel Code Injection Framework
NVD GitHub
CVSS 3.1
8.9
EPSS
0.7%
CVE-2026-75925 Sep 04, 21:19 CRITICAL PATCH CISA Act Now

Privilege escalation to root/SYSTEM in IXON VPN Client before 1.4.7 lets an attacker inject arbitrary configuration directives via a CRLF (improper neutralization, CWE-93) flaw: the client's local configuration interface accepts changes without authenticating or verifying the requester's origin, writes those values to a file, and a privileged subprocess later consumes them. By embedding line-ending sequences the attacker smuggles additional directives that run with elevated privileges. Because the malicious config persists across client restarts and OS reboots while the VPN keeps functioning normally, the compromise is stealthy with no user-visible change. No public exploit identified at time of analysis; no CISA KEV listing.

Code Injection Ixon Vpn Client
NVD GitHub
CVSS 4.0
9.4
EPSS
0.7%
CVE-2026-84372 Sep 01, 21:20 CRITICAL POC PATCH GHSA Act Now

RESP protocol command injection in Predis, the popular PHP client for Redis and Valkey, affects versions 3.0.0-RC1 through 3.2.x when pipeline() is used over aggregate cluster or replication connections. Because AbstractAggregateConnection::write() re-splits an already-serialized RESP buffer on CRLF instead of respecting RESP length prefixes, attacker-controlled keys or values containing carriage-return/line-feed bytes are re-parsed as additional Redis commands, enabling shard-wide cache deletion, targeted data reads/writes, or node disruption on clusters and denial-of-service on replication setups. Fixed in 3.3.0; no public exploit identified at time of analysis, and it is not listed in CISA KEV.

Redis Code Injection Predis
NVD GitHub VulDB
CVSS 3.1
9.8
EPSS
0.4%
CVE-2026-82854 Aug 31, 08:46 npm CRITICAL PATCH Act Now

SMTP command injection in Nodemailer before 8.0.4 lets attackers smuggle arbitrary SMTP verbs (notably RCPT TO) into outgoing mail by planting CRLF characters in the envelope.size value, silently adding attacker-controlled recipients or otherwise manipulating the MAIL FROM dialogue. Only applications that pass a custom envelope object and expose its size property to untrusted input are affected, since Nodemailer's default auto-constructed envelope never sets size. A working proof-of-concept is published in the GHSA advisory; there is no public exploit identified beyond that PoC and no evidence of active exploitation.

Command Injection Nodemailer
NVD GitHub
CVSS 4.0
9.3
EPSS
1.1%
CVE-2026-59313 Aug 27, 17:58 CRITICAL Act Now

Server-Sent Events (SSE) stream corruption affects Spring MVC applications built on the functional web framework across Spring Framework 5.3.0-5.3.49, 6.0.0-6.0.30, 6.1.0-6.1.28, 6.2.0-6.2.19 and 7.0.0-7.0.8, where unneutralized CRLF sequences (CWE-93) let an attacker inject into or corrupt the event stream. Reported by VMware/Spring and tagged as Information Disclosure, the flaw can break stream framing and potentially leak or splice data across SSE responses. No public exploit identified at time of analysis, and EPSS is low (0.16%, 6th percentile), but the vendor-assigned CVSS of 9.8 (all-High impact) sits in tension with the information-disclosure framing and warrants scrutiny.

Java Information Disclosure Spring Spring Framework
NVD HeroDevs VulDB
CVSS 3.1
9.8
EPSS
0.2%
CVE-2026-47890 Aug 27, 06:17 CRITICAL Act Now

Cross-response information disclosure and stream corruption affects Spring Framework 6.2.0-6.2.19 and 7.0.0-7.0.8 (both MVC and WebFlux) when applications serve Server-Sent Events (SSE) together with view fragments, letting remote attackers corrupt the event stream and potentially bleed data across responses. No public exploit is identified at time of analysis and CISA has not listed the flaw in KEV; EPSS is low at 0.15% (5th percentile). The vendor-assigned 9.8 rating sits uneasily against the CWE-93 root cause, the 'Information Disclosure' tagging, and the SSVC 'exploitation: none' status, suggesting the paper severity outruns observed real-world risk.

Java Information Disclosure VMware Spring Framework
NVD HeroDevs VulDB
CVSS 3.1
9.8
EPSS
0.2%
CVE-2026-54511 Aug 26, 14:28 npm HIGH POC PATCH GHSA This Week

Log injection in @logtape/syslog allows network-accessible attackers to forge arbitrary syslog records in downstream collectors such as rsyslog, Splunk, and Elastic Stack. The escapeStructuredDataValue() function omits C0 control character escaping, so a literal newline embedded in a log property value terminates the current RFC 6587 TCP syslog frame and begins a new one; if the attacker-supplied bytes constitute a valid RFC 5424 header, the downstream collector accepts them as a separate, authentic-looking record. A second injection path exists through unvalidated SD-NAME keys, which can prematurely close structured-data elements. Both paths require the non-default SyslogSinkOptions.includeStructuredData: true setting. Publicly available proof-of-concept code exists; no CISA KEV listing at time of analysis.

RCE Node.js Splunk Elastic
NVD GitHub
CVSS 3.1
8.6
EPSS
0.3%
CVE-2026-77550 Aug 26, 10:33 CRITICAL PATCH Act Now

Authentication bypass in Ubiquiti UniFi OS lets a network-adjacent, unauthenticated attacker abuse improper neutralization of CRLF sequences (CWE-93) to gain access to affected consoles and gateways. It impacts a broad line of UniFi OS devices - Cloud Keys, Dream Machines/Routers, Network Video Recorders, Cloud Gateways, Enterprise Firewall/Fortress and NAS appliances, and the UniFi OS Server. Vendor-rated CVSS 10.0; no public exploit identified at time of analysis, and it is not listed in CISA KEV.

Authentication Bypass Express Ubiquiti Network Attached Storage Unifi Os Server +12
NVD VulDB
CVSS 3.1
10.0
EPSS
0.4%
CVSS 9.4
CRITICAL PATCH Act Now

Configuration injection in the Froxlor hosting control panel (all versions before 2.2.5) lets an authenticated customer embed literal newline characters in a subdomain redirect URL, which are written verbatim into nginx or Apache vhost configuration files when the privileged cron job rebuilds them. Because the injected lines become active web server directives affecting other hosted domains on the same server, a low-privileged tenant can corrupt configs, cause denial of service, or hijack HTTP responses across co-hosted sites. This is a CWE-93 CRLF/newline-injection flaw; there is no public exploit identified at time of analysis and it is not listed in CISA KEV.

Denial Of Service Apache Nginx +1
NVD GitHub
EPSS 0% CVSS 7.1
HIGH PATCH This Week

SSH key injection in Froxlor before 2.3.12 allows authenticated customers to write arbitrary lines into server-side authorized_keys files by embedding newline characters in SSH public key submissions to the SshKeys::add() API endpoint. An attacker with a valid customer account can plant SSH key entries bearing OpenSSH option directives (e.g., command=, from=, restrict) that persist beyond explicit key-deletion and access-revocation actions performed by administrators. No public exploit has been identified at time of analysis, but the vendor advisory confirms the flaw and the fix version.

Authentication Bypass Froxlor
NVD GitHub
EPSS 1% CVSS 8.9
HIGH PATCH This Week

CRLF injection in Laravel Framework (CWE-93) enables unauthenticated remote attackers to manipulate outbound email processing in any application that passes user-supplied email addresses to Laravel's mail functions. An attacker who can provide an email address to an application flow - such as registration, password reset, or contact forms - can embed carriage-return/line-feed sequences to inject additional SMTP headers, reroute messages to unintended recipients, or abuse the application's mail infrastructure as an open relay. The vendor has released patches in versions 12.60.0 and 13.10.0; no public exploit code or CISA KEV listing has been identified at time of analysis.

Laravel Code Injection Framework
NVD GitHub
EPSS 1% CVSS 9.4
CRITICAL PATCH Act Now

Privilege escalation to root/SYSTEM in IXON VPN Client before 1.4.7 lets an attacker inject arbitrary configuration directives via a CRLF (improper neutralization, CWE-93) flaw: the client's local configuration interface accepts changes without authenticating or verifying the requester's origin, writes those values to a file, and a privileged subprocess later consumes them. By embedding line-ending sequences the attacker smuggles additional directives that run with elevated privileges. Because the malicious config persists across client restarts and OS reboots while the VPN keeps functioning normally, the compromise is stealthy with no user-visible change. No public exploit identified at time of analysis; no CISA KEV listing.

Code Injection Ixon Vpn Client
NVD GitHub
EPSS 0% CVSS 9.8
CRITICAL POC PATCH Act Now

RESP protocol command injection in Predis, the popular PHP client for Redis and Valkey, affects versions 3.0.0-RC1 through 3.2.x when pipeline() is used over aggregate cluster or replication connections. Because AbstractAggregateConnection::write() re-splits an already-serialized RESP buffer on CRLF instead of respecting RESP length prefixes, attacker-controlled keys or values containing carriage-return/line-feed bytes are re-parsed as additional Redis commands, enabling shard-wide cache deletion, targeted data reads/writes, or node disruption on clusters and denial-of-service on replication setups. Fixed in 3.3.0; no public exploit identified at time of analysis, and it is not listed in CISA KEV.

Redis Code Injection Predis
NVD GitHub VulDB
EPSS 1% CVSS 9.3
CRITICAL PATCH Act Now

SMTP command injection in Nodemailer before 8.0.4 lets attackers smuggle arbitrary SMTP verbs (notably RCPT TO) into outgoing mail by planting CRLF characters in the envelope.size value, silently adding attacker-controlled recipients or otherwise manipulating the MAIL FROM dialogue. Only applications that pass a custom envelope object and expose its size property to untrusted input are affected, since Nodemailer's default auto-constructed envelope never sets size. A working proof-of-concept is published in the GHSA advisory; there is no public exploit identified beyond that PoC and no evidence of active exploitation.

Command Injection Nodemailer
NVD GitHub
EPSS 0% CVSS 9.8
CRITICAL Act Now

Server-Sent Events (SSE) stream corruption affects Spring MVC applications built on the functional web framework across Spring Framework 5.3.0-5.3.49, 6.0.0-6.0.30, 6.1.0-6.1.28, 6.2.0-6.2.19 and 7.0.0-7.0.8, where unneutralized CRLF sequences (CWE-93) let an attacker inject into or corrupt the event stream. Reported by VMware/Spring and tagged as Information Disclosure, the flaw can break stream framing and potentially leak or splice data across SSE responses. No public exploit identified at time of analysis, and EPSS is low (0.16%, 6th percentile), but the vendor-assigned CVSS of 9.8 (all-High impact) sits in tension with the information-disclosure framing and warrants scrutiny.

Java Information Disclosure Spring +1
NVD HeroDevs VulDB
EPSS 0% CVSS 9.8
CRITICAL Act Now

Cross-response information disclosure and stream corruption affects Spring Framework 6.2.0-6.2.19 and 7.0.0-7.0.8 (both MVC and WebFlux) when applications serve Server-Sent Events (SSE) together with view fragments, letting remote attackers corrupt the event stream and potentially bleed data across responses. No public exploit is identified at time of analysis and CISA has not listed the flaw in KEV; EPSS is low at 0.15% (5th percentile). The vendor-assigned 9.8 rating sits uneasily against the CWE-93 root cause, the 'Information Disclosure' tagging, and the SSVC 'exploitation: none' status, suggesting the paper severity outruns observed real-world risk.

Java Information Disclosure VMware +1
NVD HeroDevs VulDB
EPSS 0% CVSS 8.6
HIGH POC PATCH This Week

Log injection in @logtape/syslog allows network-accessible attackers to forge arbitrary syslog records in downstream collectors such as rsyslog, Splunk, and Elastic Stack. The escapeStructuredDataValue() function omits C0 control character escaping, so a literal newline embedded in a log property value terminates the current RFC 6587 TCP syslog frame and begins a new one; if the attacker-supplied bytes constitute a valid RFC 5424 header, the downstream collector accepts them as a separate, authentic-looking record. A second injection path exists through unvalidated SD-NAME keys, which can prematurely close structured-data elements. Both paths require the non-default SyslogSinkOptions.includeStructuredData: true setting. Publicly available proof-of-concept code exists; no CISA KEV listing at time of analysis.

RCE Node.js Splunk +1
NVD GitHub
EPSS 0% CVSS 10.0
CRITICAL PATCH Act Now

Authentication bypass in Ubiquiti UniFi OS lets a network-adjacent, unauthenticated attacker abuse improper neutralization of CRLF sequences (CWE-93) to gain access to affected consoles and gateways. It impacts a broad line of UniFi OS devices - Cloud Keys, Dream Machines/Routers, Network Video Recorders, Cloud Gateways, Enterprise Firewall/Fortress and NAS appliances, and the UniFi OS Server. Vendor-rated CVSS 10.0; no public exploit identified at time of analysis, and it is not listed in CISA KEV.

Authentication Bypass Express Ubiquiti +14
NVD VulDB

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