CVE-2026-48593: CWE-400 Uncontrolled Resource Consumption in oban-bg oban_web
CVE-2026-48593 is a medium severity uncontrolled resource consumption vulnerability in the oban_web component of oban-bg version 2.12.0. It occurs due to unbounded expansion of cron expression ranges in the Elixir.Oban.Web.CronExpr modules. An attacker with permission to schedule cron jobs can submit a maliciously large range, which causes excessive memory allocation when a user with dashboard access views the cron job list.
AI Analysis
Technical Summary
This vulnerability in oban_web (oban-bg) version 2.12.0 involves uncontrolled resource consumption (CWE-400) caused by unbounded expansion of cron expression ranges in the Elixir.Oban.Web.CronExpr modules. An attacker with scheduling permissions can submit a cron job with a large range expression. When a dashboard user views the cron job list, the system eagerly expands this range, leading to excessive memory allocation and potential denial of service due to resource exhaustion.
Potential Impact
The impact is excessive memory consumption on systems running oban_web version 2.12.0 when viewing the cron job list on the dashboard. This can degrade performance or cause denial of service conditions. The vulnerability requires an attacker to have permission to schedule cron jobs and a user to view the dashboard, limiting the attack vector to authorized users with these privileges.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch is currently documented. Until a patch is available, restrict permissions to schedule cron jobs to trusted users only and limit dashboard access to minimize exposure.
CVE-2026-48593: CWE-400 Uncontrolled Resource Consumption in oban-bg oban_web
Description
CVE-2026-48593 is a medium severity uncontrolled resource consumption vulnerability in the oban_web component of oban-bg version 2.12.0. It occurs due to unbounded expansion of cron expression ranges in the Elixir.Oban.Web.CronExpr modules. An attacker with permission to schedule cron jobs can submit a maliciously large range, which causes excessive memory allocation when a user with dashboard access views the cron job list.
CVSS v4.0
Score 5.9medium
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in oban_web (oban-bg) version 2.12.0 involves uncontrolled resource consumption (CWE-400) caused by unbounded expansion of cron expression ranges in the Elixir.Oban.Web.CronExpr modules. An attacker with scheduling permissions can submit a cron job with a large range expression. When a dashboard user views the cron job list, the system eagerly expands this range, leading to excessive memory allocation and potential denial of service due to resource exhaustion.
Potential Impact
The impact is excessive memory consumption on systems running oban_web version 2.12.0 when viewing the cron job list on the dashboard. This can degrade performance or cause denial of service conditions. The vulnerability requires an attacker to have permission to schedule cron jobs and a user to view the dashboard, limiting the attack vector to authorized users with these privileges.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch is currently documented. Until a patch is available, restrict permissions to schedule cron jobs to trusted users only and limit dashboard access to minimize exposure.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- EEF
- Date Reserved
- 2026-05-22T09:36:56.834Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a16041de29bf47b505ea07f
Added to database: 05/26/2026, 20:35:41 UTC
Last enriched: 06/30/2026, 23:48:14 UTC
Last updated: 07/31/2026, 19:22:59 UTC
Views: 60
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