{"id":1395,"date":"2026-04-29T11:47:21","date_gmt":"2026-04-29T10:47:21","guid":{"rendered":"https:\/\/hostinguk.net\/blog\/?p=1395"},"modified":"2026-04-30T11:11:18","modified_gmt":"2026-04-30T10:11:18","slug":"important-cpanel-whm-security-update-what-hosting-uk-customers-need-to-know","status":"publish","type":"post","link":"https:\/\/hostinguk.net\/blog\/important-cpanel-whm-security-update-what-hosting-uk-customers-need-to-know\/","title":{"rendered":"Important cPanel &amp; WHM Security Update: What Hosting UK Customers Need to Know"},"content":{"rendered":"\n<p>On 28 April 2026, cPanel released an urgent security update for all currently supported versions of cPanel &amp; WHM, addressing a vulnerability related to authentication pathways within the control panel software.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What&nbsp;was&nbsp;the issue?&nbsp;<\/h2>\n\n\n\n<p>cPanel&nbsp;identified&nbsp;a security issue affecting all supported versions of cPanel &amp; WHM, specifically linked to certain authentication paths within the software. Due to the elevated access control panels&nbsp;provide, this type of issue is treated as critical.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Which versions were affected?&nbsp;<\/h2>\n\n\n\n<p>The vulnerability&nbsp;impacts&nbsp;all supported versions, with patched builds released across multiple branches including 11.110, 11.118, 11.126, 11.132, 11.134, and 11.136.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Was customer data affected?&nbsp;<\/h2>\n\n\n\n<p>There is no evidence of data compromise. This was a preventative security update, not a&nbsp;breach&nbsp;notification.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Do I need to take action?&nbsp;<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Managed customers<\/strong>&nbsp;\u2013 &nbsp;No action required. We\u2019ve already taken care of this for you.<\/li>\n\n\n\n<li><strong>Unmanaged VPS or dedicated server customers<\/strong>&nbsp;\u2013 we recommend checking that your cPanel installation is fully up to date and running a supported version.<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>On 28 April 2026, cPanel released an urgent security update for all currently supported versions of cPanel &amp; WHM, addressing a vulnerability related to authentication pathways within the control panel software. What&nbsp;was&nbsp;the issue?&nbsp; cPanel&nbsp;identified&nbsp;a security issue affecting all supported versions of cPanel &amp; WHM, specifically linked to certain authentication paths within the software. Due to&#8230; <a class=\"moretag\" href=\"https:\/\/hostinguk.net\/blog\/important-cpanel-whm-security-update-what-hosting-uk-customers-need-to-know\/\">Keep Reading<\/a><\/p>\n","protected":false},"author":9,"featured_media":1397,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[229],"tags":[],"class_list":["post-1395","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-security"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Important cPanel &amp; WHM Security Update: What Hosting UK Customers Need to Know - Hosting UK<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Important cPanel &amp; WHM Security Update: What Hosting UK Customers Need to Know - Hosting UK\" \/>\n<meta property=\"og:description\" content=\"On 28 April 2026, cPanel released an urgent security update for all currently supported versions of cPanel &amp; WHM, addressing a vulnerability related to authentication pathways within the control panel software. 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Keep Reading\" \/>\n<meta property=\"og:url\" content=\"https:\/\/hostinguk.net\/blog\/important-cpanel-whm-security-update-what-hosting-uk-customers-need-to-know\/\" \/>\n<meta property=\"og:site_name\" content=\"Hosting UK\" \/>\n<meta property=\"article:published_time\" content=\"2026-04-29T10:47:21+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-04-30T10:11:18+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/hostinguk.net\/blog\/wp-content\/uploads\/2026\/04\/20260429-CPanel-Alert@2x-scaled.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"1240\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"author\" content=\"Adrien Tibi\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Adrien Tibi\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/hostinguk.net\\\/blog\\\/important-cpanel-whm-security-update-what-hosting-uk-customers-need-to-know\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/hostinguk.net\\\/blog\\\/important-cpanel-whm-security-update-what-hosting-uk-customers-need-to-know\\\/\"},\"author\":{\"name\":\"Adrien Tibi\",\"@id\":\"https:\\\/\\\/hostinguk.net\\\/blog\\\/#\\\/schema\\\/person\\\/5fa81506dbbb5950d5a306f174f949f2\"},\"headline\":\"Important cPanel &amp; 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