{"id":79659,"date":"2026-06-12T13:46:23","date_gmt":"2026-06-12T10:16:23","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2026-50631-apache-cxf-oauth2-toctou-race-condition-in-refresh-token-processing\/"},"modified":"2026-06-12T13:46:23","modified_gmt":"2026-06-12T10:16:23","slug":"cve-2026-50631-apache-cxf-oauth2-toctou-race-condition-in-refresh-token-processing","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2026-50631-apache-cxf-oauth2-toctou-race-condition-in-refresh-token-processing\/","title":{"rendered":"CVE-2026-50631 &#8211; Apache CXF: OAuth2: TOCTOU Race Condition in Refresh Token Processing"},"content":{"rendered":"<p>CVE ID :CVE-2026-50631<\/p>\n<p>  Published : June 12, 2026, 10:16 a.m. | 1\u00a0hour, 6\u00a0minutes ago<\/p>\n<p>  Description :A race condition in AbstractOAuthDataProvider allows concurrent requests using the same Refresh Token to bypass single-use semantics and generate multiple valid Access Tokens, when &#8216;recycleRefreshTokens&#8217; is set to false. A leaked refresh token can be replayed concurrently by multiple attackers or threads.\u00a0Users are recommended to upgrade to versions 4.2.2 or 4.1.7, which fixes this issue.<\/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-2026-50631 Published : June 12, 2026, 10:16 a.m. | 1\u00a0hour, 6\u00a0minutes ago Description :A race condition in AbstractOAuthDataProvider allows concurrent requests using the same Refresh Token to bypass single-use semantics and generate multiple valid Access Tokens, when &#8216;recycleRefreshTokens&#8217; is set to false. A leaked refresh token can be replayed concurrently by multiple attackers &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-79659","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/79659","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=79659"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/79659\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=79659"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=79659"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=79659"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}