HTTP Request Smuggling

Overview Affected versions of this package are vulnerable to HTTP Request Smuggling in the ServerConnection process. An attacker can bypass application-level size limits or cause incorrect application behavior by sending HTTP/2 DATA frames with a total byte count that does not match the declared...

EUVD-2026-37798

PHP Standard Library: HTTP/2 server-side missing content-length validation enables request smuggling...

CVE-2026-48979

PHP Standard Library PSL is set of APIs covering async, collections, networking, I/O, cryptography, terminal UI, etc. In versions 6.1.0, 6.1.1 and 6.2.0, the Psl\H2\ServerConnection does not validate that the total bytes received in DATA frames match the content-length header declared in the...

CVE-2026-48979 PHP Standard Library: HTTP/2 server-side missing content-length validation enables request smuggling

PHP Standard Library PSL is set of APIs covering async, collections, networking, I/O, cryptography, terminal UI, etc. In versions 6.1.0, 6.1.1 and 6.2.0, the Psl\H2\ServerConnection does not validate that the total bytes received in DATA frames match the content-length header declared in the...

CVE-2026-48979 PHP Standard Library: HTTP/2 server-side missing content-length validation enables request smuggling

PHP Standard Library PSL is set of APIs covering async, collections, networking, I/O, cryptography, terminal UI, etc. In versions 6.1.0, 6.1.1 and 6.2.0, the Psl\H2\ServerConnection does not validate that the total bytes received in DATA frames match the content-length header declared in the...

CVE-2026-48979 PHP Standard Library: HTTP/2 server-side missing content-length validation enables request smuggling

PHP Standard Library PSL is set of APIs covering async, collections, networking, I/O, cryptography, terminal UI, etc. In versions 6.1.0, 6.1.1 and 6.2.0, the Psl\H2\ServerConnection does not validate that the total bytes received in DATA frames match the content-length header declared in the...

CVE-2026-48979: Inconsistent Interpretation of HTTP Requests

PHP Standard Library PSL is set of APIs covering async, collections, networking, I/O, cryptography, terminal UI, etc. In versions 6.1.0, 6.1.1 and 6.2.0, the Psl\H2\ServerConnection does not validate that the total bytes received in DATA frames match the content-length header declared in the...

PT-2026-50544

Name of the Vulnerable Software and Affected Versions PHP Standard Library PSL versions 6.1.0 through 6.1.1 PHP Standard Library PSL version 6.2.0 Description The PslH2ServerConnection function does not validate that the total bytes received in DATA frames match the content-length header declared...