ReDoS (Regular Expression Denial of Service) in danswer-ai/danswer
Priority HIGH 72CWE-1333Published · 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-1333.
Summary
A vulnerability in danswer-ai/danswer version 1 allows an attacker to perform a Regular Expression Denial of Service (ReDoS) by manipulating regular expressions. This can significantly slow down the application's response time and potentially render it completely unusable.
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| danswer-ai | danswer-ai/danswer | up to latest | — | No fix listed | CNA |
- 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
- 2026-10-02 Threatist record created from CVE-2024-7779
- 2026-10-03 Alias added: GHSA-4f3h-89pj-w84f
References
More danswer-ai vulnerabilities
- 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-2025-00141 Denial of Service in danswer-ai/danswer CVSS 3.0HIGH 7.5
- TI-2024-07442 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
Sources
- CVE-2024-7779 · CVE Program
- CVE-2024-7779 · NVD
- FIRST EPSS
- GHSA-4f3h-89pj-w84f · GitHub Advisory Database · CC BY 4.0
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