CVE-2026-48593 (GCVE-0-2026-48593)

Vulnerability from cvelistv5 – Published: 2026-05-26 19:46 – Updated: 2026-05-27 04:44
VLAI
Title
Unbounded range expansion in cron describe causes memory exhaustion in oban_web
Summary
Uncontrolled Resource Consumption vulnerability in oban-bg oban_web ('Elixir.Oban.Web.CronExpr' modules) allows memory exhaustion via unbounded cron range expansion. An attacker with access to schedule cron jobs can submit a malicious cron expression such as "0 0 1-100000000 * *". When a user with dashboard access views the cron job list, 'Elixir.Oban.Web.CronExpr':describe/1 is called to render the expression. parse_range/1 parses both range endpoints via Integer.parse/1 with no bounds check, and the downstream helpers expand_dom_parts/1 and expand_dow_parts/1 materialise the range eagerly via Enum.to_list/1, causing allocation of ~2.4 GB and stalling or crashing the BEAM node. A sibling helper extract_dom_values already validates range bounds, but the expansion helpers do not. This issue affects oban_web: from 2.12.0 before 2.12.5.
CWE
  • CWE-400 - Uncontrolled Resource Consumption
Assigner
EEF
Impacted products
Vendor Product Version
oban-bg oban_web Affected: 2.12.0 , < 2.12.5 (semver)
    cpe:2.3:a:oban_web_project:oban_web:*:*:*:*:*:*:*:*
Create a notification for this product.
oban-bg oban_web Affected: a97c7960bb389b05aaab4cf8042985f02ceddc24 , < 9998b7e284e02fdd4645dd6231760038e63b584d (git)
    cpe:2.3:a:oban_web_project:oban_web:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
Peter Ullrich Shannon Selbert Jonatan Männchen
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-48593",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-26T20:46:18.908875Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-26T20:46:24.889Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://repo.hex.pm",
          "cpes": [
            "cpe:2.3:a:oban_web_project:oban_web:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "modules": [
            "\u0027Elixir.Oban.Web.CronExpr\u0027"
          ],
          "packageName": "oban_web",
          "packageURL": "pkg:hex/oban_web",
          "product": "oban_web",
          "programFiles": [
            "lib/oban/web/cron_expr.ex"
          ],
          "programRoutines": [
            {
              "name": "\u0027Elixir.Oban.Web.CronExpr\u0027:describe/1"
            },
            {
              "name": "\u0027Elixir.Oban.Web.CronExpr\u0027:parse_range/1"
            },
            {
              "name": "\u0027Elixir.Oban.Web.CronExpr\u0027:expand_dom_parts/1"
            },
            {
              "name": "\u0027Elixir.Oban.Web.CronExpr\u0027:expand_dow_parts/1"
            }
          ],
          "vendor": "oban-bg",
          "versions": [
            {
              "lessThan": "2.12.5",
              "status": "affected",
              "version": "2.12.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "collectionURL": "https://github.com",
          "cpes": [
            "cpe:2.3:a:oban_web_project:oban_web:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "modules": [
            "\u0027Elixir.Oban.Web.CronExpr\u0027"
          ],
          "packageName": "oban-bg/oban_web",
          "packageURL": "pkg:github/oban-bg/oban_web",
          "product": "oban_web",
          "programFiles": [
            "lib/oban/web/cron_expr.ex"
          ],
          "programRoutines": [
            {
              "name": "\u0027Elixir.Oban.Web.CronExpr\u0027:describe/1"
            },
            {
              "name": "\u0027Elixir.Oban.Web.CronExpr\u0027:parse_range/1"
            },
            {
              "name": "\u0027Elixir.Oban.Web.CronExpr\u0027:expand_dom_parts/1"
            },
            {
              "name": "\u0027Elixir.Oban.Web.CronExpr\u0027:expand_dow_parts/1"
            }
          ],
          "repo": "https://github.com/oban-bg/oban_web.git",
          "vendor": "oban-bg",
          "versions": [
            {
              "lessThan": "9998b7e284e02fdd4645dd6231760038e63b584d",
              "status": "affected",
              "version": "a97c7960bb389b05aaab4cf8042985f02ceddc24",
              "versionType": "git"
            }
          ]
        }
      ],
      "configurations": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eThe vulnerability is exploitable when an attacker with access to schedule cron jobs submits a malicious cron expression. The crash is triggered when a user with dashboard access views the cron job list, which calls \u003ctt\u003e\u0027Elixir.Oban.Web.CronExpr\u0027:describe/1\u003c/tt\u003e to render the expression.\u003c/p\u003e"
            }
          ],
          "value": "The vulnerability is exploitable when an attacker with access to schedule cron jobs submits a malicious cron expression. The crash is triggered when a user with dashboard access views the cron job list, which calls \u0027Elixir.Oban.Web.CronExpr\u0027:describe/1 to render the expression."
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:oban_web_project:oban_web:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "2.12.5",
                  "versionStartIncluding": "2.12.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ],
          "operator": "AND"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Peter Ullrich"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Shannon Selbert"
        },
        {
          "lang": "en",
          "type": "analyst",
          "value": "Jonatan M\u00e4nnchen"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eUncontrolled Resource Consumption vulnerability in oban-bg oban_web (\u003ctt\u003e\u0027Elixir.Oban.Web.CronExpr\u0027\u003c/tt\u003e modules) allows memory exhaustion via unbounded cron range expansion.\u003c/p\u003e\u003cp\u003eAn attacker with access to schedule cron jobs can submit a malicious cron expression such as \u003ctt\u003e\"0 0 1-100000000 * *\"\u003c/tt\u003e. When a user with dashboard access views the cron job list, \u003ctt\u003e\u0027Elixir.Oban.Web.CronExpr\u0027:describe/1\u003c/tt\u003e is called to render the expression. \u003ctt\u003eparse_range/1\u003c/tt\u003e parses both range endpoints via \u003ctt\u003eInteger.parse/1\u003c/tt\u003e with no bounds check, and the downstream helpers \u003ctt\u003eexpand_dom_parts/1\u003c/tt\u003e and \u003ctt\u003eexpand_dow_parts/1\u003c/tt\u003e materialise the range eagerly via \u003ctt\u003eEnum.to_list/1\u003c/tt\u003e, causing allocation of ~2.4 GB and stalling or crashing the BEAM node. A sibling helper \u003ctt\u003eextract_dom_values\u003c/tt\u003e already validates range bounds, but the expansion helpers do not.\u003c/p\u003e\u003cp\u003eThis issue affects oban_web: from 2.12.0 before 2.12.5.\u003c/p\u003e"
            }
          ],
          "value": "Uncontrolled Resource Consumption vulnerability in oban-bg oban_web (\u0027Elixir.Oban.Web.CronExpr\u0027 modules) allows memory exhaustion via unbounded cron range expansion.\n\nAn attacker with access to schedule cron jobs can submit a malicious cron expression such as \"0 0 1-100000000 * *\". When a user with dashboard access views the cron job list, \u0027Elixir.Oban.Web.CronExpr\u0027:describe/1 is called to render the expression. parse_range/1 parses both range endpoints via Integer.parse/1 with no bounds check, and the downstream helpers expand_dom_parts/1 and expand_dow_parts/1 materialise the range eagerly via Enum.to_list/1, causing allocation of ~2.4 GB and stalling or crashing the BEAM node. A sibling helper extract_dom_values already validates range bounds, but the expansion helpers do not.\n\nThis issue affects oban_web: from 2.12.0 before 2.12.5."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-130",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-130 Excessive Allocation"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "PASSIVE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-400",
              "description": "CWE-400 Uncontrolled Resource Consumption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-27T04:44:37.981Z",
        "orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
        "shortName": "EEF"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory",
            "related"
          ],
          "url": "https://github.com/oban-bg/oban_web/security/advisories/GHSA-6xh2-93p9-vqh4"
        },
        {
          "tags": [
            "related"
          ],
          "url": "https://cna.erlef.org/cves/CVE-2026-48593.html"
        },
        {
          "tags": [
            "related"
          ],
          "url": "https://osv.dev/vulnerability/EEF-CVE-2026-48593"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/oban-bg/oban_web/commit/9998b7e284e02fdd4645dd6231760038e63b584d"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Unbounded range expansion in cron describe causes memory exhaustion in oban_web",
      "x_generator": {
        "engine": "cvelib 1.8.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
    "assignerShortName": "EEF",
    "cveId": "CVE-2026-48593",
    "datePublished": "2026-05-26T19:46:43.980Z",
    "dateReserved": "2026-05-22T09:36:56.834Z",
    "dateUpdated": "2026-05-27T04:44:37.981Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-48593\",\"sourceIdentifier\":\"6b3ad84c-e1a6-4bf7-a703-f496b71e49db\",\"published\":\"2026-05-26T21:16:41.857\",\"lastModified\":\"2026-05-26T21:16:41.857\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Uncontrolled Resource Consumption vulnerability in oban-bg oban_web (\u0027Elixir.Oban.Web.CronExpr\u0027 modules) allows memory exhaustion via unbounded cron range expansion.\\n\\nAn attacker with access to schedule cron jobs can submit a malicious cron expression such as \\\"0 0 1-100000000 * *\\\". When a user with dashboard access views the cron job list, \u0027Elixir.Oban.Web.CronExpr\u0027:describe/1 is called to render the expression. parse_range/1 parses both range endpoints via Integer.parse/1 with no bounds check, and the downstream helpers expand_dom_parts/1 and expand_dow_parts/1 materialise the range eagerly via Enum.to_list/1, causing allocation of ~2.4 GB and stalling or crashing the BEAM node. A sibling helper extract_dom_values already validates range bounds, but the expansion helpers do not.\\n\\nThis issue affects oban_web: from 2.12.0 before 2.12.5.\"}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"6b3ad84c-e1a6-4bf7-a703-f496b71e49db\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X\",\"baseScore\":5.9,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"PRESENT\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"PASSIVE\",\"vulnConfidentialityImpact\":\"NONE\",\"vulnIntegrityImpact\":\"NONE\",\"vulnAvailabilityImpact\":\"HIGH\",\"subConfidentialityImpact\":\"NONE\",\"subIntegrityImpact\":\"NONE\",\"subAvailabilityImpact\":\"NONE\",\"exploitMaturity\":\"NOT_DEFINED\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}]},\"weaknesses\":[{\"source\":\"6b3ad84c-e1a6-4bf7-a703-f496b71e49db\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-400\"}]}],\"references\":[{\"url\":\"https://cna.erlef.org/cves/CVE-2026-48593.html\",\"source\":\"6b3ad84c-e1a6-4bf7-a703-f496b71e49db\"},{\"url\":\"https://github.com/oban-bg/oban_web/commit/9998b7e284e02fdd4645dd6231760038e63b584d\",\"source\":\"6b3ad84c-e1a6-4bf7-a703-f496b71e49db\"},{\"url\":\"https://github.com/oban-bg/oban_web/security/advisories/GHSA-6xh2-93p9-vqh4\",\"source\":\"6b3ad84c-e1a6-4bf7-a703-f496b71e49db\"},{\"url\":\"https://osv.dev/vulnerability/EEF-CVE-2026-48593\",\"source\":\"6b3ad84c-e1a6-4bf7-a703-f496b71e49db\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-48593\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-05-26T20:46:18.908875Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-05-26T20:46:21.859Z\"}}], \"cna\": {\"title\": \"Unbounded range expansion in cron describe causes memory exhaustion in oban_web\", \"source\": {\"discovery\": \"EXTERNAL\"}, \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Peter Ullrich\"}, {\"lang\": \"en\", \"type\": \"remediation developer\", \"value\": \"Shannon Selbert\"}, {\"lang\": \"en\", \"type\": \"analyst\", \"value\": \"Jonatan M\\u00e4nnchen\"}], \"impacts\": [{\"capecId\": \"CAPEC-130\", \"descriptions\": [{\"lang\": \"en\", \"value\": \"CAPEC-130 Excessive Allocation\"}]}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV4_0\": {\"version\": \"4.0\", \"baseScore\": 5.9, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N\", \"userInteraction\": \"PASSIVE\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"PRESENT\", \"privilegesRequired\": \"LOW\", \"subIntegrityImpact\": \"NONE\", \"vulnIntegrityImpact\": \"NONE\", \"subAvailabilityImpact\": \"NONE\", \"vulnAvailabilityImpact\": \"HIGH\", \"subConfidentialityImpact\": \"NONE\", \"vulnConfidentialityImpact\": \"NONE\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"cpes\": [\"cpe:2.3:a:oban_web_project:oban_web:*:*:*:*:*:*:*:*\"], \"vendor\": \"oban-bg\", \"modules\": [\"\u0027Elixir.Oban.Web.CronExpr\u0027\"], \"product\": \"oban_web\", \"versions\": [{\"status\": \"affected\", \"version\": \"2.12.0\", \"lessThan\": \"2.12.5\", \"versionType\": \"semver\"}], \"packageURL\": \"pkg:hex/oban_web\", \"packageName\": \"oban_web\", \"programFiles\": [\"lib/oban/web/cron_expr.ex\"], \"collectionURL\": \"https://repo.hex.pm\", \"defaultStatus\": \"unaffected\", \"programRoutines\": [{\"name\": \"\u0027Elixir.Oban.Web.CronExpr\u0027:describe/1\"}, {\"name\": \"\u0027Elixir.Oban.Web.CronExpr\u0027:parse_range/1\"}, {\"name\": \"\u0027Elixir.Oban.Web.CronExpr\u0027:expand_dom_parts/1\"}, {\"name\": \"\u0027Elixir.Oban.Web.CronExpr\u0027:expand_dow_parts/1\"}]}, {\"cpes\": [\"cpe:2.3:a:oban_web_project:oban_web:*:*:*:*:*:*:*:*\"], \"repo\": \"https://github.com/oban-bg/oban_web.git\", \"vendor\": \"oban-bg\", \"modules\": [\"\u0027Elixir.Oban.Web.CronExpr\u0027\"], \"product\": \"oban_web\", \"versions\": [{\"status\": \"affected\", \"version\": \"a97c7960bb389b05aaab4cf8042985f02ceddc24\", \"lessThan\": \"9998b7e284e02fdd4645dd6231760038e63b584d\", \"versionType\": \"git\"}], \"packageURL\": \"pkg:github/oban-bg/oban_web\", \"packageName\": \"oban-bg/oban_web\", \"programFiles\": [\"lib/oban/web/cron_expr.ex\"], \"collectionURL\": \"https://github.com\", \"defaultStatus\": \"unaffected\", \"programRoutines\": [{\"name\": \"\u0027Elixir.Oban.Web.CronExpr\u0027:describe/1\"}, {\"name\": \"\u0027Elixir.Oban.Web.CronExpr\u0027:parse_range/1\"}, {\"name\": \"\u0027Elixir.Oban.Web.CronExpr\u0027:expand_dom_parts/1\"}, {\"name\": \"\u0027Elixir.Oban.Web.CronExpr\u0027:expand_dow_parts/1\"}]}], \"references\": [{\"url\": \"https://github.com/oban-bg/oban_web/security/advisories/GHSA-6xh2-93p9-vqh4\", \"tags\": [\"vendor-advisory\", \"related\"]}, {\"url\": \"https://cna.erlef.org/cves/CVE-2026-48593.html\", \"tags\": [\"related\"]}, {\"url\": \"https://osv.dev/vulnerability/EEF-CVE-2026-48593\", \"tags\": [\"related\"]}, {\"url\": \"https://github.com/oban-bg/oban_web/commit/9998b7e284e02fdd4645dd6231760038e63b584d\", \"tags\": [\"patch\"]}], \"x_generator\": {\"engine\": \"cvelib 1.8.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"Uncontrolled Resource Consumption vulnerability in oban-bg oban_web (\u0027Elixir.Oban.Web.CronExpr\u0027 modules) allows memory exhaustion via unbounded cron range expansion.\\n\\nAn attacker with access to schedule cron jobs can submit a malicious cron expression such as \\\"0 0 1-100000000 * *\\\". When a user with dashboard access views the cron job list, \u0027Elixir.Oban.Web.CronExpr\u0027:describe/1 is called to render the expression. parse_range/1 parses both range endpoints via Integer.parse/1 with no bounds check, and the downstream helpers expand_dom_parts/1 and expand_dow_parts/1 materialise the range eagerly via Enum.to_list/1, causing allocation of ~2.4 GB and stalling or crashing the BEAM node. A sibling helper extract_dom_values already validates range bounds, but the expansion helpers do not.\\n\\nThis issue affects oban_web: from 2.12.0 before 2.12.5.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cp\u003eUncontrolled Resource Consumption vulnerability in oban-bg oban_web (\u003ctt\u003e\u0027Elixir.Oban.Web.CronExpr\u0027\u003c/tt\u003e modules) allows memory exhaustion via unbounded cron range expansion.\u003c/p\u003e\u003cp\u003eAn attacker with access to schedule cron jobs can submit a malicious cron expression such as \u003ctt\u003e\\\"0 0 1-100000000 * *\\\"\u003c/tt\u003e. When a user with dashboard access views the cron job list, \u003ctt\u003e\u0027Elixir.Oban.Web.CronExpr\u0027:describe/1\u003c/tt\u003e is called to render the expression. \u003ctt\u003eparse_range/1\u003c/tt\u003e parses both range endpoints via \u003ctt\u003eInteger.parse/1\u003c/tt\u003e with no bounds check, and the downstream helpers \u003ctt\u003eexpand_dom_parts/1\u003c/tt\u003e and \u003ctt\u003eexpand_dow_parts/1\u003c/tt\u003e materialise the range eagerly via \u003ctt\u003eEnum.to_list/1\u003c/tt\u003e, causing allocation of ~2.4 GB and stalling or crashing the BEAM node. A sibling helper \u003ctt\u003eextract_dom_values\u003c/tt\u003e already validates range bounds, but the expansion helpers do not.\u003c/p\u003e\u003cp\u003eThis issue affects oban_web: from 2.12.0 before 2.12.5.\u003c/p\u003e\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-400\", \"description\": \"CWE-400 Uncontrolled Resource Consumption\"}]}], \"configurations\": [{\"lang\": \"en\", \"value\": \"The vulnerability is exploitable when an attacker with access to schedule cron jobs submits a malicious cron expression. The crash is triggered when a user with dashboard access views the cron job list, which calls \u0027Elixir.Oban.Web.CronExpr\u0027:describe/1 to render the expression.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cp\u003eThe vulnerability is exploitable when an attacker with access to schedule cron jobs submits a malicious cron expression. The crash is triggered when a user with dashboard access views the cron job list, which calls \u003ctt\u003e\u0027Elixir.Oban.Web.CronExpr\u0027:describe/1\u003c/tt\u003e to render the expression.\u003c/p\u003e\", \"base64\": false}]}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:a:oban_web_project:oban_web:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"2.12.5\", \"versionStartIncluding\": \"2.12.0\"}], \"operator\": \"OR\"}], \"operator\": \"AND\"}], \"providerMetadata\": {\"orgId\": \"6b3ad84c-e1a6-4bf7-a703-f496b71e49db\", \"shortName\": \"EEF\", \"dateUpdated\": \"2026-05-27T04:44:37.981Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-48593\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-27T04:44:37.981Z\", \"dateReserved\": \"2026-05-22T09:36:56.834Z\", \"assignerOrgId\": \"6b3ad84c-e1a6-4bf7-a703-f496b71e49db\", \"datePublished\": \"2026-05-26T19:46:43.980Z\", \"assignerShortName\": \"EEF\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Loading…

Detection rules are retrieved from Rulezet.

Loading…

Loading…