CVE-2026-44214

Published: Mag 26, 2026 Last Modified: Mag 26, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 5,8
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: changed
Confidentiality: none
Integrity: low
Availability: none

Description

AI Translation Available

eventsource-encoder encodes events as well-formed EventSource/Server Sent Event (SSE) messages. Prior to 1.0.2, eventsource-encoder does not sanitize the event or id fields of an EventSourceMessage before serializing them. An attacker who controls either field can inject arbitrary Server-Sent Events line terminators (\n, \r, or \r\n) and thereby forge additional SSE fields or entire messages on the stream. This vulnerability is fixed in 1.0.2.

93

Improper Neutralization of CRLF Sequences ('CRLF Injection')

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity
Potential Impacts:
Modify Application Data
Applicable Platforms
All platforms may be affected
View CWE Details
113

Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')

Incomplete
Abstraction: Variant Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity Access Control
Potential Impacts:
Modify Application Data Gain Privileges Or Assume Identity
Applicable Platforms
Technologies: Web Based, Web Server
View CWE Details
https://github.com/rexxars/eventsource-encoder/security/adv…
https://github.com/rexxars/eventsource-encoder/security/advisories/GHSA-m9g3-3g…