{"id":80704,"date":"2026-06-18T00:13:25","date_gmt":"2026-06-17T20:43:25","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2026-48979-php-standard-library-http-2-server-side-missing-content-length-validation-enables-request-smuggling\/"},"modified":"2026-06-18T00:13:25","modified_gmt":"2026-06-17T20:43:25","slug":"cve-2026-48979-php-standard-library-http-2-server-side-missing-content-length-validation-enables-request-smuggling","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2026-48979-php-standard-library-http-2-server-side-missing-content-length-validation-enables-request-smuggling\/","title":{"rendered":"CVE-2026-48979 &#8211; PHP Standard Library: HTTP\/2 server-side missing content-length validation enables request smuggling"},"content":{"rendered":"<p>CVE ID :CVE-2026-48979<\/p>\n<p>  Published : June 17, 2026, 8:43 p.m. | 59\u00a0minutes ago<\/p>\n<p>  Description :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 PslH2ServerConnection does not validate that the total bytes received in DATA frames match the content-length header declared in the HEADERS frame, allowing request smuggling. This is in violation of RFC 9113 \u00a78.1.1. A malicious client is able to send more DATA bytes than declared, smuggling additional content past application-level size limits and send fewer DATA bytes than declared and close the stream early, causing applications that trust the declared length to behave incorrectly.<br \/>\nThe vulnerability is only reachable for consumers using PslH2ServerConnection directly to accept untrusted client traffic. Consumers of documented high-level PSL APIs are not affected. This issue has been fixed in versions 6.1.2 and 6.2.1.<\/p>\n<p>  Severity: 0.0 | NA<\/p>\n<p>  Visit the link for more details, such as CVSS details, affected products, timeline, and more&#8230;\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CVE ID :CVE-2026-48979 Published : June 17, 2026, 8:43 p.m. | 59\u00a0minutes ago Description :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 PslH2ServerConnection does not validate that the total bytes received in DATA frames match the content-length header declared &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-80704","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/80704","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/comments?post=80704"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/80704\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=80704"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=80704"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=80704"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}