CVE-2026-121938: langchain4j-aideepin before 3.31.0 IDOR via GET /character/{uuid}
moyangzhan · langchain4j-aideepin
Fixed in 3.31.0 · Affected: moyangzhan langchain4j-aideepin before 3.31.0 · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 33% of scored CVEs
DescriptionCVE.org
langchain4j-aideepin before 3.31.0 contains an insecure direct object reference vulnerability that allows authenticated users to read other users' character-chat conversations by supplying their character uuid. Attackers can request GET /character/{uuid}, which CharacterService.detail resolves without an ownership check, to obtain victims' questions, AI answers, and attachment and audio URLs.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- moyangzhan · langchain4j-aideepinbefore 3.31.0
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Weakness
- Insecure Direct Object Reference
- Published
- November 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-121938 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.