{"id":77262,"date":"2026-02-17T01:52:41","date_gmt":"2026-02-16T22:22:41","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2026-2439-conciergesessions-versions-from-0-8-1-before-0-8-5-for-perl-generate-insecure-session-ids\/"},"modified":"2026-02-17T01:52:41","modified_gmt":"2026-02-16T22:22:41","slug":"cve-2026-2439-conciergesessions-versions-from-0-8-1-before-0-8-5-for-perl-generate-insecure-session-ids","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2026-2439-conciergesessions-versions-from-0-8-1-before-0-8-5-for-perl-generate-insecure-session-ids\/","title":{"rendered":"CVE-2026-2439 &#8211; Concierge::Sessions versions from 0.8.1 before 0.8.5 for Perl generate insecure session ids"},"content":{"rendered":"<p>CVE ID : CVE-2026-2439<\/p>\n<p>Published :  Feb. 16, 2026, 10:22 p.m. | 13\u00a0minutes ago<\/p>\n<p>Description : Concierge::Sessions versions from 0.8.1 before 0.8.5 for Perl generate insecure session ids. The generate_session_id function in Concierge::Sessions::Base defaults to using the uuidgen command to generate a UUID, with a fallback to using Perl&#8217;s built-in rand function. Neither of these methods are secure, and attackers are able to guess session_ids that can grant them access to systems. Specifically,<\/p>\n<p>  *  There is no warning when uuidgen fails. The software can be quietly using the fallback rand() function with no warnings if the command fails for any reason.<br \/>\n  *  The uuidgen command will generate a time-based UUID if the system does not have a high-quality random number source, because the call does not explicitly specify the &#8211;random option. Note that the system time is shared in HTTP responses.<br \/>\n  *  UUIDs are identifiers whose mere possession grants access, as per RFC 9562.<br \/>\n  *  The output of the built-in rand() function is predictable and unsuitable for security applications.<\/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-2026-2439 Published : Feb. 16, 2026, 10:22 p.m. | 13\u00a0minutes ago Description : Concierge::Sessions versions from 0.8.1 before 0.8.5 for Perl generate insecure session ids. The generate_session_id function in Concierge::Sessions::Base defaults to using the uuidgen command to generate a UUID, with a fallback to using Perl&#8217;s built-in rand function. Neither of these &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-77262","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/77262","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=77262"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/77262\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=77262"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=77262"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=77262"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}