CVE-2026-108880: JeecgBoot authorization bypass in dictionary editor

CVE-2026-108880 · Severity: medium · CVSS 4.3 · Published 2026-10-11

JeecgBoot is a low-code development framework used to build business applications. The framework contains an authorization flaw in its dictionary management endpoint that allows any logged-in user to modify dictionaries belonging to other applications. An attacker with basic user access can rename dictionaries and change their entries, potentially disrupting application logic or corrupting data.

Technologies: JeecgBoot. Vendors: JeecgBoot.

Quick answers

Is CVE-2026-108880 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-108880 being exploited in the wild.
How severe is CVE-2026-108880?
Medium severity, with a CVSS score of 4.3, published 11 October 2026.
Which products and versions are affected?
JeecgBoot through 3.9.5.
Is there a fix for CVE-2026-108880?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-108880 attacked?
It is attacked over the network.
Am I affected by CVE-2026-108880?
Check whether you run JeecgBoot at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

Missing authorization check in the PUT /sys/dict/editDictByLowAppId endpoint allows authenticated users to modify dictionaries of any low-code application by supplying a lowAppId parameter (obtainable from a public GET endpoint) or X-Low-App-ID header. The vulnerability requires prior authentication but performs no additional access control to verify the user owns or has permission to modify the targeted dictionary.

Affected products

  • JeecgBoot JeecgBoot through 3.9.5

Timeline

  • 2026-10-11: disclosed

References

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