{"id":259580,"date":"2026-05-30T02:41:00","date_gmt":"2026-05-30T06:41:00","guid":{"rendered":"https:\/\/news-you-need.com\/index.php\/2026\/05\/30\/pan-os-globalprotect-authentication-bypass-cve-2026-0257-under-active-exploitation\/"},"modified":"2026-05-30T10:00:09","modified_gmt":"2026-05-30T14:00:09","slug":"pan-os-globalprotect-authentication-bypass-cve-2026-0257-under-active-exploitation","status":"publish","type":"post","link":"https:\/\/news-you-need.com\/index.php\/2026\/05\/30\/pan-os-globalprotect-authentication-bypass-cve-2026-0257-under-active-exploitation\/","title":{"rendered":"PAN-OS GlobalProtect Authentication Bypass (CVE-2026-0257) Under Active Exploitation"},"content":{"rendered":"<p><a href=\"https:\/\/thehackernews.com\/2026\/05\/pan-os-globalprotect-authentication.html\">PAN-OS GlobalProtect Authentication Bypass (CVE-2026-0257) Under Active Exploitation<\/a><\/p>\n<p><a href=\"https:\/\/thehackernews.com\/2026\/05\/pan-os-globalprotect-authentication.html\">https:\/\/thehackernews.com\/2026\/05\/pan-os-globalprotect-authentication.html<\/a><\/p>\n<p>Publish Date: <a href=\"publish_date]\">2026-05-30 02:41:00<\/a><\/p>\n<p>Source Domain: <a href=\"thehackernews.com\">thehackernews.com<\/a><\/p>\n<p><span class=\"p-author\">\ue804<span class=\"author\">Ravie Lakshmanan<\/span>\ue802<span class=\"author\">May 30, 2026<\/span><\/span><span class=\"p-tags\">Vulnerability \/ Network Security<\/span><\/p>\n<p>Palo Alto Networks has warned that a recently disclosed medium-severity security flaw impacting PAN-OS and Prisma Access has come under active exploitation in the wild.<\/p>\n<p>The vulnerability, tracked as CVE-2026-0257 (CVSS score: 7.8), refers to a case of authentication bypass that could be exploited by bad actors to set up VPN connections.<\/p>\n<p>&#8220;Authentication bypass vulnerabilities in the GlobalProtect portal and gateway of Palo Alto Networks PAN-OS\u00ae software allow the attacker to bypass security restrictions and establish an unauthorized VPN connection,&#8221; Palo Alto Networks said in an advisory released on May 13, 2026.<\/p>\n<p>The issue specifically affects firewalls with GlobalProtect portal or gateway configured when authentication override cookies are enabled and a specific certificate configuration exists, the network security company said.<\/p>\n<p>In an update to its advisory on May 29, 2026, Palo Alto Networks said it has &#8220;become aware of limited exploit attempts on unpatched PAN-OS devices without mitigations applied.<\/p>\n<p>The development comes after Rapid7 revealed it identified successful exploitation across numerous customers, with the earliest efforts dating back to May 17, 2026, followed by a second wave on May 21. Both the exploitation sets are assessed to be the work of the same threat actor.<\/p>\n<p>The activity observed in the second wave involved VPN IP assignment following the cookie authentication in two cases, granting the attacker access to the internal network. No follow-on activity in the customer environments where a VPN session was established, the cybersecurity vendor added.<\/p>\n<p>&#8220;An authentication bypass in an edge facing enterprise VPN appliance can have significant impact to affected organizations,&#8221; Rapid7 said. &#8220;As such, organizations running affected appliances are urged to upgrade to a vendor supplied patch on an urgent basis.&#8221;<\/p>\n<p>As temporary mitigations, it&#8217;s recommended to either disable the&#8230;<\/p>\n<p><a href=\"https:\/\/thehackernews.com\/2026\/05\/pan-os-globalprotect-authentication.html\">Source<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>PAN-OS GlobalProtect Authentication Bypass (CVE-2026-0257) Under Active Exploitation https:\/\/thehackernews.com\/2026\/05\/pan-os-globalprotect-authentication.html Publish Date: 2026-05-30 02:41:00 Source Domain:&#8230;<\/p>\n","protected":false},"author":1,"featured_media":259581,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/blogger.googleusercontent.com\/img\/b\/R29vZ2xl\/AVvXsEgkaW0i4ALAlpWQ_cOjfhoqUlNgMlZysJA6ay0qPViGI_KxEEG-Hh0KdtWLqBXDH42ZBGSONs0ZJuzOqdRF7vbx6Xa9J8HlP60lY45JHy0ivdRQs0exe4wZT2lI3TW4oDO-XXPVz2pek2M3izLqT3ONwq2iuHPN31ZZvK3jl0zIDq_h5XF1CTRk7fUPzjEQ\/s1600\/panos.jpg","fifu_image_alt":"","footnotes":""},"categories":[15],"tags":[24,31,29,34,27],"class_list":["post-259580","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cybersecurity","tag-cybersecurity","tag-exploit","tag-network-security","tag-threat-actor","tag-vulnerability"],"_links":{"self":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts\/259580"}],"collection":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/comments?post=259580"}],"version-history":[{"count":1,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts\/259580\/revisions"}],"predecessor-version":[{"id":259582,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts\/259580\/revisions\/259582"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/media\/259581"}],"wp:attachment":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/media?parent=259580"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/categories?post=259580"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/tags?post=259580"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}