libapache-session-browseable-perl — security advisory

{
  "id": "4e7ebffa9e51913e0a88e8d9fc6b4fbb7cf928ea34bd40c14a4598acb4fb7d1c",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-8503",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2026-8503",
    "summary": "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.",
    "evidence": "osv:DEBIAN-CVE-2026-8503",
    "products": [
      {
        "name": {
          "value": "libapache-session-browseable-perl",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.3.11-3+deb12u1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "1.3.11-3",
            "evidence": "/affected/0/versions"
          }
        ]
      },
      {
        "name": {
          "value": "libapache-session-browseable-perl",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.3.16-1+deb13u1",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "1.3.16-1",
            "evidence": "/affected/1/versions"
          }
        ]
      },
      {
        "name": {
          "value": "libapache-session-browseable-perl",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.3.19-1",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "1.3.16-1",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "1.3.17-1",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "1.3.18-1",
            "evidence": "/affected/2/versions"
          }
        ]
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "DEBIAN-CVE-2026-8503",
      "aliases": [
        "DEBIAN-CVE-2026-8503"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.3.11-3+deb12u1"
                }
              ]
            }
          ],
          "package": {
            "name": "libapache-session-browseable-perl",
            "purl": "pkg:deb/debian/libapache-session-browseable-perl?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "versions": [
            "1.3.11-3"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-8503.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.3.16-1+deb13u1"
                }
              ]
            }
          ],
          "package": {
            "name": "libapache-session-browseable-perl",
            "purl": "pkg:deb/debian/libapache-session-browseable-perl?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "versions": [
            "1.3.16-1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-8503.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.3.19-1"
                }
              ]
            }
          ],
          "package": {
            "name": "libapache-session-browseable-perl",
            "purl": "pkg:deb/debian/libapache-session-browseable-perl?arch=source&distro=forky",
            "ecosystem": "Debian:14"
          },
          "versions": [
            "1.3.16-1",
            "1.3.17-1",
            "1.3.18-1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-8503.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-27T09:47:28.811851709Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-8503"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2026-8503"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-8503",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 460962,
  "published_at": "2026-05-15T12:17:09.557+00:00"
}