{"id":81701,"date":"2026-07-08T19:01:11","date_gmt":"2026-07-08T15:31:11","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2026-59876-protobufjs-text-format-string-map-parsing-can-mutate-returned-map-object-prototype\/"},"modified":"2026-07-08T19:01:11","modified_gmt":"2026-07-08T15:31:11","slug":"cve-2026-59876-protobufjs-text-format-string-map-parsing-can-mutate-returned-map-object-prototype","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2026-59876-protobufjs-text-format-string-map-parsing-can-mutate-returned-map-object-prototype\/","title":{"rendered":"CVE-2026-59876 &#8211; protobufjs: Text Format string map parsing can mutate returned map object prototype"},"content":{"rendered":"<p>CVE ID :CVE-2026-59876<\/p>\n<p>  Published : July 8, 2026, 3:31 p.m. | 17\u00a0minutes ago<\/p>\n<p>  Description :protobufjs compiles protobuf definitions into JavaScript (JS) functions. From 8.2.0 until 8.6.5, the protobufjs Text Format extension parsed string-keyed map entries using ordinary property assignment, allowing a map entry with key __proto__ to change the prototype of the returned map object instead of creating an own map entry in protobufjs\/ext\/textformat. This issue is fixed in version 8.6.5.<\/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-2026-59876 Published : July 8, 2026, 3:31 p.m. | 17\u00a0minutes ago Description :protobufjs compiles protobuf definitions into JavaScript (JS) functions. From 8.2.0 until 8.6.5, the protobufjs Text Format extension parsed string-keyed map entries using ordinary property assignment, allowing a map entry with key __proto__ to change the prototype of the returned map object &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-81701","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/81701","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=81701"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/81701\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=81701"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=81701"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=81701"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}