MEDIUMCVSS v3.1 5.3Vulnerability
CVE-2026-111707
99AI through 4.3.0 contains an insecure direct object reference vulnerability that allows unauthenticated attackers to read other users' chat messages because querySingleChat lacks an owner check. Attackers can send a fingerprint header to obtain a visitor JWT and iterate sequential chatId values to retrieve other users' message content and task data.
Properties
- Severity
- MEDIUM
- Nvd fetched at
- 2026-10-20T21:14:08.448323+00:00
- Epss score
- 0.0031
- Cvss score
- 5.3
- Cvss severity
- MEDIUM
- Retrieved at
- 2026-10-21T01:24:48+00:00
- Last source
- FIRST EPSS
- Score
- 5.3
- Cvss version
- 3.1
- Cve id
- CVE-2026-111707
- Cvss vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- First seen by Signal
- 2026-10-18T13:39:03+00:00
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- Published at
- 2026-10-16T18:17:54.803
- Last modified
- 2026-10-16T19:17:05.233
- Epss percentile
- 0.22428
Related Entities (1)
HAS_WEAKNESS (1)
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