CVE-2025-71379: vLLM regular expression denial of service vulnerabilities
vLLM
vLLM versions between 0.6.3 and 0.9.0 contain ReDoS vulnerabilities in regex patterns used in utility functions and chat endpoints. Crafted inputs can trigger high CPU consumption and service degradation.
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
- 7.5
- EPSS
- <0.01 · top 58% · 2026-11-13
- fix status
- Fix status unknown
- first report
- 20 Jun 2026
- last update
- 20 Jun 2026
- CVE ids
Timeline · 1
Sources · 1
Advisories and databases
- 2026-06-20CVE-2025-71379: vLLM versions >= 0.6.3 and < 0.9.0 contain multiple regular expression denial of service (ReDoS) vulnerabilities.NVD · nvd.nist.gov/vuln/detail/CVE-2025-71379
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 vulnerability
- severity
- 2 · Disclosed vulnerability
- fix status
- Fix status unknown
- targets
- Framework / tooling
- owasp llm top 10
- LLM03:2025 Supply Chain
- mitre atlas
- no technique for these categories
- dates
- happened 20 Jun 2026 · first reported 20 Jun 2026
- origin
- NVDVulnerability 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 06:33Z · updated 2026-10-18 06:33Z
Lane, AI role, categories and severity come from the classifier; the OWASP and ATLAS rows are derived from the categories. How these are assigned
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the brief as text
# CVE-2025-71379: vLLM regular expression denial of service vulnerabilities https://gcdradar.vercel.app/incidents/cve-2025-71379-vllm-regular-expression-denial-of-service-vul · AIR-2026-0023 · closed 2026-06-20 - Lane: Patch now - Severity: 2 (Disclosed vulnerability) - Fix status: Fix status unknown - First reported: 2026-06-20 - AI role: Attack on AI - Products: vLLM - CVE ids: CVE-2025-71379 - CVSS: 7.5 ## Summary vLLM versions between 0.6.3 and 0.9.0 contain ReDoS vulnerabilities in regex patterns used in utility functions and chat endpoints. Crafted inputs can trigger high CPU consumption and service degradation. ## What to do No action recorded; read the sources below and the vendor's advisory. ## Latest updates - 2026-06-20: CVE-2025-71379: vLLM versions >= 0.6.3 and < 0.9.0 contain multiple regular expression denial of service (ReDoS) vulnerabilities. (https://nvd.nist.gov/vuln/detail/CVE-2025-71379) ## Sources - 2026-06-20 NVD: CVE-2025-71379: vLLM versions >= 0.6.3 and < 0.9.0 contain multiple regular expression denial of service (ReDoS) vulnerabilities. https://nvd.nist.gov/vuln/detail/CVE-2025-71379 Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.
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AI