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TI-2025-00141 Aliases CVE-2025-0182GHSA-vrw3-r7jw-4785

Denial of Service in danswer-ai/danswer

Priority HIGH 72CWE-770Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · CNA. Fix status from CNA. Impact type from CWE-770.

Summary

A vulnerability in danswer-ai/danswer version 0.9.0 allows for denial of service through memory exhaustion. The issue arises from the use of a vulnerable version of the starlette package (<=0.49) via fastapi, which was patched in fastapi version 0.115.3. The vulnerability can be exploited by sending multiple requests to the /auth/saml/callback endpoint, leading to uncontrolled memory consumption and eventual denial of service.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00719 54th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
danswer-aidanswer-ai/danswerup to latest—No fix listedCNA
  • danswer-ai/danswer Vendordanswer-ai Affected up to latest Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-0182
  2. 2026-10-03 Alias added: GHSA-vrw3-r7jw-4785

References

Other 1

  • TI-2024-21753 Unauthorized access to GET/SET of Slack Bot Tokens in Danswer CVSS 3.1CRITICAL 9.8
  • TI-2024-07378 Arbitrary File Overwrite in danswer-ai/danswer CVSS 3.0CRITICAL 9.1
  • TI-2024-07442 Denial of Service in danswer-ai/danswer CVSS 3.0HIGH 7.5
  • TI-2024-07212 ReDoS (Regular Expression Denial of Service) in danswer-ai/danswer CVSS 3.0HIGH 7.5
  • TI-2024-07477 CSRF in danswer-ai/danswer CVSS 3.0HIGH 8.1
  • TI-2024-07246 CORS Misconfiguration in danswer-ai/danswer CVSS 3.0HIGH 7.4
See all 8 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences