{"id":81439,"date":"2026-07-03T14:00:57","date_gmt":"2026-07-03T10:30:57","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2026-10055-eclipse-theia-request-service-server-side-request-forgery\/"},"modified":"2026-07-03T14:00:57","modified_gmt":"2026-07-03T10:30:57","slug":"cve-2026-10055-eclipse-theia-request-service-server-side-request-forgery","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2026-10055-eclipse-theia-request-service-server-side-request-forgery\/","title":{"rendered":"CVE-2026-10055 &#8211; Eclipse Theia Request Service Server-Side Request Forgery"},"content":{"rendered":"<p>CVE ID :CVE-2026-10055<\/p>\n<p>  Published : July 3, 2026, 10:30 a.m. | 1\u00a0hour, 16\u00a0minutes ago<\/p>\n<p>  Description :In Eclipse Theia since version 1.26.0, the backend \/services\/request-service RPC accepts an attacker-controlled URL from any client connected to the standard \/services messaging endpoint, performs the HTTP request server-side, and returns the full response body to the caller.<\/p>\n<p>Because the destination URL is neither validated nor allowlisted, a remote attacker with access to the Theia service connection can issue server-side HTTP requests to localhost or other backend-reachable hosts and read their responses, exposing internal administrative endpoints, cloud instance metadata services, and other resources that are intentionally outside the browser network boundary.<\/p>\n<p>The vulnerability affects deployments where the Theia service connection is reachable by untrusted users (for example, multi-tenant or publicly-reachable Theia deployments).<\/p>\n<p>  Severity: 8.5 | HIGH<\/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-2026-10055 Published : July 3, 2026, 10:30 a.m. | 1\u00a0hour, 16\u00a0minutes ago Description :In Eclipse Theia since version 1.26.0, the backend \/services\/request-service RPC accepts an attacker-controlled URL from any client connected to the standard \/services messaging endpoint, performs the HTTP request server-side, and returns the full response body to the caller. Because the &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-81439","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/81439","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=81439"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/81439\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=81439"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=81439"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=81439"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}