gcdRadar
archive/Patch now/AIR-2026-1070
closedclosed 8 May 2026Patch now2 Disclosed vulnerabilityAI

CVE-2026-42456: Insecure direct object reference in AnythingLLM tts endpoint

AnythingLLM

AnythingLLM prior to version 1.12.1 contains an insecure direct object reference vulnerability in the text-to-speech chat response route. Authenticated users can access private assistant responses belonging to other users if the chat ID is known.

disclosed CVENo confirmed exploitation, so this record is tracked as a disclosed vulnerability and not counted as an incident. It moves into the counts if CISA or the vendor confirms exploitation. Why

CVSS
4.3
EPSS
<0.01 · top 77% · 2026-11-13
EPSS scores by FIRST
fix status
Fix status unknown
first report
8 May 2026
last update
8 May 2026
CVE ids
CVE-2026-42456other records

Timeline · 1

  1. 8 May 2026CVE-2026-42456: AnythingLLM is an application that turns pieces of content into context that any LLM can use as references during chatting.

Sources · 1

Advisories and databases

  1. 2026-05-08
    CVE-2026-42456: AnythingLLM is an application that turns pieces of content into context that any LLM can use as references during chatting.
    NVD · nvd.nist.gov/vuln/detail/CVE-2026-42456

Titles and links belong to their publishers. The summary above is written by gcdRadar in its own words; data is CC BY-SA 4.0.

Classification

lane
Patch now
AI role
Attack on AI
categories
Infrastructure vulnerabilityData leak
severity
2 · Disclosed vulnerability
fix status
Fix status unknown
targets
Framework / tooling
owasp llm top 10
LLM02:2025 Sensitive Information DisclosureLLM03:2025 Supply Chain
mitre atlas
no technique for these categories
tags
idordata-leak
dates
happened 8 May 2026 · first reported 8 May 2026
origin
NVD
Vulnerability record from NVD / the GitHub Advisory Database. This product uses the NVD API but is not endorsed or certified by the NVD.
record
confidence 0.95 · created 2026-10-18 10:04Z · updated 2026-10-18 10:04Z

Lane, AI role, categories and severity come from the classifier; the OWASP and ATLAS rows are derived from the categories. How these are assigned

Copy a brief

This record as a short Markdown brief, for a ticket, a chat or a coding agent.

the brief as text
# CVE-2026-42456: Insecure direct object reference in AnythingLLM tts endpoint

https://gcdradar.vercel.app/incidents/cve-2026-42456-insecure-direct-object-reference-in-anythingl · AIR-2026-1070 · closed 2026-05-08

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability)
- Fix status: Fix status unknown
- First reported: 2026-05-08
- AI role: Attack on AI
- Products: AnythingLLM
- CVE ids: CVE-2026-42456
- CVSS: 4.3

## Summary

AnythingLLM prior to version 1.12.1 contains an insecure direct object reference vulnerability in the text-to-speech chat response route. Authenticated users can access private assistant responses belonging to other users if the chat ID is known.

## What to do

No action recorded; read the sources below and the vendor's advisory.

## Latest updates

- 2026-05-08: CVE-2026-42456: AnythingLLM is an application that turns pieces of content into context that any LLM can use as references during chatting. (https://nvd.nist.gov/vuln/detail/CVE-2026-42456)

## Sources

- 2026-05-08 NVD: CVE-2026-42456: AnythingLLM is an application that turns pieces of content into context that any LLM can use as references during chatting. https://nvd.nist.gov/vuln/detail/CVE-2026-42456

Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.

Related

  1. closed4.3
    AnythingLLM AnythingLLM Authentication Flaw Permits Unauthorized Workspace Access

    Patch now · Disclosed · since 28 May 2026 · CVE-2026-47713

    AI
  2. closed8.7
    AnythingLLM CVE-2026-24477: AnythingLLM API Key Exposure Vulnerability

    Patch now · Disclosed · since 27 Jan 2026 · CVE-2026-24477

    AI
  3. closed9.6
    LibreChat CVE-2026-32625: LibreChat MCP Server Environment Variable Exfiltration Vulnerability

    Patch now · Disclosed · since 2 Jun 2026 · CVE-2026-32625

    AI
  4. closed8.2
    CodexBar CodexBar Session Cookie Leakage via Insecure Redirects

    Patch now · Disclosed · since 1 Jun 2026 · CVE-2026-43625

    AI
  5. closed7.7
    Flowise CVE-2026-56268: Flowise cross-workspace chatflow information disclosure

    Patch now · Disclosed · since 20 May 2026 · updated 22 Jun 2026 · CVE-2026-56268

    AI
  6. closed9.1
    Dify Dify Authorization Bypass Leads to Tenant Trace Configuration Exposure

    Patch now · Disclosed · since 18 May 2026 · CVE-2026-41947

    AI