CRLF injection in PSR-7 - CVE-2026-49214
Published: May 26, 2026
Vulnerability identifier: #VU132301
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-49214
CWE-ID: CWE-93
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to inject arbitrary data in server response.
The vulnerability exists due to insufficient validation of attacker-supplied data within URI Host component. A remote attacker can pass specially crafted data to the application containing CR-LF characters and modify application behavior.
Affected software
PSR-7
How to mitigate CVE-2026-49214
Install updates from vendor's website.
PSR-7 - update to 2.10.2