{"id":"DEBIAN-CVE-2026-8503","details":"Apache::Session::Generate::SHA256 versions before 1.3.19 for Perl create insecure session ids.  Apache::Session::Generate::SHA256 generated session ids insecurely. The default session id generator returns a SHA-256 hash of the built-in rand() function, the epoch time, and the PID, that is hashed again. These are predictable, low-entropy sources. Predicable session ids could allow an attacker to gain access to systems.  Note that version 1.3.19 has a fallback without warning to use insecure session generation method if the call to Crypt::URandom::urandom fails. However, this is unlikely as Crypt::URandom is a hardcoded requirement of the module.  This issue is similar to CVE-2025-40931 for Apache::Session::Generate::MD5.","modified":"2026-10-01T03:03:44.511732725Z","published":"2026-05-15T12:17:09.557Z","upstream":["CVE-2026-8503"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-8503"}],"affected":[{"package":{"name":"libapache-session-browseable-perl","ecosystem":"Debian:12","purl":"pkg:deb/debian/libapache-session-browseable-perl?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.11-3+deb12u1"}]}],"versions":["1.3.11-3"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-8503.json"}},{"package":{"name":"libapache-session-browseable-perl","ecosystem":"Debian:13","purl":"pkg:deb/debian/libapache-session-browseable-perl?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.16-1+deb13u1"}]}],"versions":["1.3.16-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-8503.json"}},{"package":{"name":"libapache-session-browseable-perl","ecosystem":"Debian:14","purl":"pkg:deb/debian/libapache-session-browseable-perl?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.19-1"}]}],"versions":["1.3.16-1","1.3.17-1","1.3.18-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-8503.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N"}]}