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Medium

Missing authorization check on save-job event handler in oban_web

Type: advisorySources: OSV

Missing Authorization vulnerability in oban-bg oban_web ('Elixir.Oban.Web.Jobs.DetailComponent' modules) allows unauthorized job worker substitution. The handle_event("save-job", ...) handler in 'Elixir.Oban.Web.Jobs.DetailComponent' does not perform an authorization check, unlike the sibling cancel, delete, and retry handlers which all verify the caller's privileges via can?/2. An authenticated user with :read_only access can push a forged save-job LiveView WebSocket event to overwrite a job's worker field with any other existing Oban.Worker module in the application. On the job's next execution attempt, Oban will invoke perform/1 on the attacker-chosen module instead of the intended one. This issue affects oban_web: from 2.12.0 before 2.12.5.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-48592
Confirmed fixed CVEs
Not specified
Updated in this feed
2 Nov 2026, 21:11 UTC · Revision 1

Source evidence

Missing authorization check on save-job event handler in oban_web

core-osv · Original source

Published 26 May 2026, 19:46 UTC

Missing Authorization vulnerability in oban-bg oban_web ('Elixir.Oban.Web.Jobs.DetailComponent' modules) allows unauthorized job worker substitution. The handle_event("save-job", ...) handler in 'Elixir.Oban.Web.Jobs.DetailComponent' does not perform an authorization check, unlike the sibling cancel, delete, and retry handlers which all verify the caller's privileges via can?/2. An authenticated user with :read_only access can push a forged save-job LiveView WebSocket event to overwrite a job's worker field with any other existing Oban.Worker module in the application. On the job's next execution attempt, Oban will invoke perform/1 on the attacker-chosen module instead of the intended one. This issue affects oban_web: from 2.12.0 before 2.12.5.

osv:CVE-2026-48592
Complete source record
{
  "id": "9cd8948c69925517cafd0711b6fe9ea188c492b2d98eefe3629b8db618f3b482",
  "url": "https://osv.dev/vulnerability/CVE-2026-48592",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Missing authorization check on save-job event handler in oban_web",
    "summary": "Missing Authorization vulnerability in oban-bg oban_web ('Elixir.Oban.Web.Jobs.DetailComponent' modules) allows unauthorized job worker substitution. The handle_event(\"save-job\", ...) handler in 'Elixir.Oban.Web.Jobs.DetailComponent' does not perform an authorization check, unlike the sibling cancel, delete, and retry handlers which all verify the caller's privileges via can?/2. An authenticated user with :read_only access can push a forged save-job LiveView WebSocket event to overwrite a job's worker field with any other existing Oban.Worker module in the application. On the job's next execution attempt, Oban will invoke perform/1 on the attacker-chosen module instead of the intended one. This issue affects oban_web: from 2.12.0 before 2.12.5.",
    "evidence": "osv:CVE-2026-48592",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-48592",
      "aliases": [
        "CVE-2026-48592",
        "EEF-CVE-2026-48592",
        "GHSA-389x-rgxr-8m33"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/oban-bg/oban_web",
              "type": "GIT",
              "events": [
                {
                  "introduced": "f23d19f035a36430f898c35fcd2168784c427a59"
                },
                {
                  "fixed": "a01100b9405fa62009bc1674d5b2bd2acc27e07e"
                },
                {
                  "fixed": "ab3c5d1d3eba06c62045f16f2cd7781c7752e248"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "2.12.0"
                      },
                      {
                        "fixed": "2.12.5"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "fixed": "ab3c5d1d3eba06c62045f16f2cd7781c7752e248"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            },
            {
              "repo": "https://github.com/oban-bg/oban_web.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "a17bc8c31286c9d516e2892cf5483d1c95e65d6c"
                },
                {
                  "fixed": "ab3c5d1d3eba06c62045f16f2cd7781c7752e248"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "a17bc8c31286c9d516e2892cf5483d1c95e65d6c"
                      },
                      {
                        "fixed": "ab3c5d1d3eba06c62045f16f2cd7781c7752e248"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.12.4",
            "v2.12.3",
            "v2.12.2",
            "v2.12.1",
            "v2.12.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-48592.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:23.571870790Z",
      "provider": "osv",
      "references": [
        "https://cna.erlef.org/cves/CVE-2026-48592.html",
        "https://github.com",
        "https://osv.dev/vulnerability/EEF-CVE-2026-48592",
        "https://repo.hex.pm",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48592.json",
        "https://github.com/oban-bg/oban_web/security/advisories/GHSA-389x-rgxr-8m33",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-48592",
        "https://github.com/oban-bg/oban_web/commit/ab3c5d1d3eba06c62045f16f2cd7781c7752e248",
        "https://github.com/oban-bg/oban_web.git"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-862"
        ],
        "cna_assigner": "EEF",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48592.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-48592",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 490091,
  "published_at": "2026-05-26T19:46:48.611+00:00"
}