JeecgBoot through 3.9.5 contains a missing authorization vulnerability in SysAnnouncementSendController that allows authenticated users to modify… (CVE-2026-108642)
Description
JeecgBoot versions through 3.9.5 have a missing authorization vulnerability in the SysAnnouncementSendController. This flaw allows authenticated users to modify other users' message delivery records by exploiting insufficient access controls. Attackers can retrieve delivery IDs via a GET request and then submit edits to alter read flags, recipient IDs, or linked announcements, potentially hiding messages from intended recipients. The vulnerability has a medium severity with a CVSS score of 4.3.
CVSS v3.1
Score 4.3medium
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-108642 describes a missing authorization vulnerability in JeecgBoot through version 3.9.5 within the SysAnnouncementSendController component. Authenticated users can access the endpoint GET /sys/sysAnnouncementSend/list to obtain delivery IDs and then perform unauthorized modifications on message delivery records. These modifications include overwriting read flags, recipient identifiers, or linked announcements, which can be used to conceal messages from their intended recipients. The vulnerability is classified under CWE-639 (Authorization Bypass Through User-Controlled Key) and has a CVSS 3.1 base score of 4.3, indicating a medium impact primarily on integrity.
Potential Impact
The vulnerability allows authenticated users to modify message delivery records of other users, potentially hiding messages by altering read flags, recipient IDs, or linked announcements. This impacts the integrity of message delivery data but does not affect confidentiality or availability. There is no evidence of known exploits in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided in the available data. Until a patch is available, restrict access to the affected controller endpoints to trusted users only and monitor for suspicious modification attempts.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-mf94-5mc9-gxww
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-108642"]
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
Threat ID: 6acc00dd2cdf04f656feebac
Added to database: 10/11/2026, 21:34:21 UTC
Last enriched: 10/11/2026, 21:59:16 UTC
Last updated: 10/11/2026, 22:28:18 UTC
Views: 8
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