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By leveraging the \u002Flogin-actions\u002Frestart endpoint—which processes session handles without adequate CSRF protection or cookie ownership validation—an attacker can reset the authentication flow state. This causes Single Sign-On (SSO) to authenticate the victim transparently upon clicking the link, allowing the attacker to hijack the required-action form without needing the victim's credentials. A successful exploit could lead to complete account takeover, including highly privileged administrative accounts.","A session fixation vulnerability was found in Keycloak's login-actions endpoints. 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A session fixation vulnerability was found in Keycloak's log...","CVE-2026-7507, CVE-2026-7507 vulnerability, CVE-2026-7507 security, high severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research, vulnerability assessment, cyber threats, 2026, CVSS score, exploit, patch, remediation, redhat security, build_of_keycloak vulnerability","\u002Fwhat-is\u002Fcve-2026-7507",{"@context":114,"@type":115,"headline":109,"description":110,"datePublished":10,"dateModified":11,"author":116,"publisher":120,"about":124,"mainEntityOfPage":128,"articleSection":131,"keywords":132},"https:\u002F\u002Fschema.org","TechArticle",{"@type":117,"name":118,"url":119},"Organization","Precursor Intelligence","https:\u002F\u002Fprecursorintelligence.com",{"@type":117,"name":118,"url":119,"logo":121},{"@type":122,"url":123},"ImageObject","https:\u002F\u002Fprecursorintelligence.com\u002Fimg\u002Flogos\u002Feplogo.png",{"@type":125,"name":6,"description":126,"additionalType":127},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":129,"@id":130},"WebPage","https:\u002F\u002Fprecursorintelligence.com\u002Fwhat-is\u002Fcve-2026-7507","Cybersecurity","CVE-2026-7507, CVE-2026-7507 vulnerability, CVE-2026-7507 security, high severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[134],{"Operator":26,"Negate":26,"Nodes":135},[136],{"Operator":137,"Negate":106,"CPEMatch":138},"OR",[139],{"Vulnerable":4,"Criteria":43,"MatchCriteriaID":140,"VersionStartExcluding":26,"VersionStartIncluding":141,"VersionEndExcluding":142,"VersionEndIncluding":26},"E71FD53F-2C05-4B84-9BEE-BB287017B322","26.4","26.4.12",[],[145],{"id":146,"eventType":147,"eventTime":148,"details":149,"label":150,"color":151},"0631e5cb-6e2d-408c-b1c8-e4c00ea9a501","NEW_NVD","2026-05-22T08:55:12.623873+00:00","New CVE added to NVD","Published to NVD","blue",{"lastModified":11,"cacheTime":153,"version":154},1792260989989,"2.0",{"score":156,"band":157,"action":158,"scoredAt":159},46,"Medium","Plan remediation","2026-10-16T07:13:36.159438+00:00"]