{"id":81669,"date":"2026-07-08T02:46:55","date_gmt":"2026-07-07T23:16:55","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2026-55076-coders-oidc-email_verified-type-coercion-bypass-enables-account-takeover-via-unverified-email-linking\/"},"modified":"2026-07-08T02:46:55","modified_gmt":"2026-07-07T23:16:55","slug":"cve-2026-55076-coders-oidc-email_verified-type-coercion-bypass-enables-account-takeover-via-unverified-email-linking","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2026-55076-coders-oidc-email_verified-type-coercion-bypass-enables-account-takeover-via-unverified-email-linking\/","title":{"rendered":"CVE-2026-55076 &#8211; Coder&#8217;s OIDC email_verified type coercion bypass enables account takeover via unverified email linking"},"content":{"rendered":"<p>CVE ID :CVE-2026-55076<\/p>\n<p>  Published : July 7, 2026, 11:16 p.m. | 31\u00a0minutes ago<\/p>\n<p>  Description :Coder allows organizations to provision remote development environments via Terraform. Prior to versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2, Coder&#8217;s OIDC callback checked `email_verified` with a direct Go `bool` type assertion. When an IdP returned the claim as a non-boolean (for example the string `&#8221;false&#8221;`) or omitted it, the assertion failed open and the email was treated as verified. Combined with an unconditional email-based account fallback, this enabled account takeover. The fix in versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2 coerces `email_verified` across bool, string and numeric types (fail-closed) and blocks the email fallback when the matched user already has a different linked IdP subject. As a workaround, ensure the IdP returns `email_verified` as a native JSON boolean. The email-fallback linking issue has no configuration workaround; upgrading is required.<\/p>\n<p>  Severity: 7.4 | 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-2026-55076 Published : July 7, 2026, 11:16 p.m. | 31\u00a0minutes ago Description :Coder allows organizations to provision remote development environments via Terraform. Prior to versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2, Coder&#8217;s OIDC callback checked `email_verified` with a direct Go `bool` type assertion. When an IdP returned the claim as a non-boolean (for example &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-81669","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/81669","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=81669"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/81669\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=81669"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=81669"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=81669"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}