What is CVE-2026-108880?

CVE-2026-108880 is a medium-severity vulnerability in Jeecgboot, classified under Missing Authorization. CVSS score: 4.3/10. Published 2026-10-11.

How severe is CVE-2026-108880?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Jeecgboot

CVE-2026-108880

JeecgBoot through 3.9.5 contains a missing authorization vulnerability in the PUT /sys/dict/editDictByLowAppId endpoint that allows any authenticated user to modify low-code application dictionaries. Attackers can supply a dictionary's low_app_id, obtained from GET /sys/dict/list, via the lowAppId parameter or X-Low-App-ID header to rename dictionaries and replace their items.

Vulnerability class: Broken Access Control

Published 2026-10-11.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Jeecgboot

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

github.com/AnkesKasty/cve-request-poc/blob/a7b6d1423555812d8efa26c91c5d0683164b… (exploit)
github.com/jeecgboot/JeecgBoot/blob/e3b9dc0aefe1943d9772b026f64ed671a7c82802/je… (technical-description)
www.vulncheck.com/advisories/jeecgboot-through-3.9.5-missing-authorization-via-… (third-party-advisory)

Frequently asked questions

What is CVE-2026-108880?: CVE-2026-108880 is a medium-severity vulnerability in Jeecgboot, classified under Missing Authorization. CVSS score: 4.3/10. Published 2026-10-11.
How severe is CVE-2026-108880?: Medium severity. CVSS v3 base score is 4.3 out of 10.