vLLM is an inference and serving engine for large language models (LLMs). From 0.1.0 to before 0.10.1.1, a Denial of Service (DoS) vulnerability can be triggered by sending a single HTTP GET request with an extremely large header to an HTTP endpoint. This results in server memory exhaustion, potentially leading to a crash or unresponsiveness. The attack does not require authentication, making it exploitable by any remote user. This vulnerability is fixed in 0.10.1.1.
CVE-2025-48956
This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 0.6%, top 57% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EG Risk
- 49(Track)EG Risk 49/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity75% × 45%Exploitation1% × 40%Automatability100% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 1%
- EPSS %ILE
- 45%
- KEV
- Not listed
Published
August 21, 2025
Last Modified
October 9, 2025
References (3)
- security-advisories@githubhttps://github.com/vllm-project/vllm/commit/d8b736f913a59117803d6701521d2e4861701944
- security-advisories@githubhttps://github.com/vllm-project/vllm/pull/23267
- security-advisories@githubhttps://github.com/vllm-project/vllm/security/advisories/GHSA-rxc4-3w6r-4v47
Vendor Advisories for CVE-2025-48956(13)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHSA-2026:24977Red Hat Product SecurityHigh
Red Hat Security Advisory: RHOAI 2.25.7 - Red Hat OpenShift AI
- RHSA-2026:3713Red Hat Product SecurityCritical
Red Hat Security Advisory: RHOAI 3.3 - Red Hat OpenShift AI
- RHSA-2025:19430Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat Enterprise Linux AI 1.5 (NVIDIA)
- RHSA-2025:19429Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat Enterprise Linux AI 1.5 (NVIDIA)
- RHSA-2025:19428Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat Enterprise Linux AI 1.5 (NVIDIA)
- RHSA-2025:19427Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat Enterprise Linux AI 1.5 (AMD)
- RHSA-2025:19426Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat Enterprise Linux AI 1.5 (NVIDIA)
- RHSA-2025:19425Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat Enterprise Linux AI 1.5 (AMD)
- +5 more
Patch Availability(11)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| redhat | rhoai/odh-vllm-gaudi-rhel9:1770956034 | 2026-03-04 | redhat |
| redhat | rhelai1/bootc-azure-amd-rhel9:1.5.4-1761073793 | 2025-11-03 | redhat |
| redhat | rhelai1/bootc-gcp-nvidia-rhel9:1.5.4-1761236079 | 2025-11-03 | redhat |
| redhat | rhelai1/bootc-aws-nvidia-rhel9:1.5.4-1761236150 | 2025-11-03 | redhat |
| redhat | rhelai1/instructlab-intel-rhel9:1.5.4-1761050413 | 2025-11-03 | redhat |
| redhat | rhelai1/bootc-intel-rhel9:1.5.4-1761060689 | 2025-11-03 | redhat |
| redhat | rhelai1/instructlab-amd-rhel9:1.5.4-1761043227 | 2025-11-03 | redhat |
| redhat | rhelai1/bootc-amd-rhel9:1.5.4-1761064179 | 2025-11-03 | redhat |
| redhat | rhelai1/bootc-nvidia-rhel9:1.5.4-1761228838 | 2025-11-03 | redhat |
| redhat | rhelai1/bootc-azure-nvidia-rhel9:1.5.4-1761238736 | 2025-11-03 | redhat |
| redhat | rhelai1/instructlab-nvidia-rhel9:1.5.4-1761220254 | 2025-11-03 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(1 across 1 ecosystem)
PyPI(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| vllm | 0.1.0 ... 0.9.2 (63 versions) | 0.10.1.1 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 6× in last 7d / 30× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 142 total refreshes for this CVE.
- 2026-09-04 05:06 UTCEPSS rescore
- 2026-09-02 14:11 UTCEPSS rescore
- 2026-09-01 13:53 UTCEPSS rescore
- 2026-09-01 04:38 UTCEPSS rescore
- 2026-08-30 19:16 UTCEPSS rescore
- 2026-08-30 01:21 UTCEPSS rescore
- 2026-08-28 21:40 UTCEPSS rescore
- 2026-08-27 14:24 UTCEPSS rescore
- 2026-08-26 14:45 UTCEPSS rescore
- 2026-08-25 13:48 UTCEPSS rescore
- 2026-08-25 05:56 UTCOSV refresh
- 2026-08-24 14:16 UTCEPSS rescore
- 2026-08-24 09:22 UTCEPSS rescore
- 2026-08-23 00:18 UTCEPSS rescore
- 2026-08-21 23:48 UTCEPSS rescore
- 2026-08-20 22:54 UTCEPSS rescore
- 2026-08-19 17:03 UTCEPSS rescore
- 2026-08-18 13:47 UTCEPSS rescore
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- 2026-08-16 14:55 UTCEPSS rescore
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- 2026-08-15 01:29 UTCEPSS rescore
- 2026-08-13 21:59 UTCEPSS rescore
- 2026-08-12 13:50 UTCEPSS rescore
- 2026-08-11 13:41 UTCEPSS rescore
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- 2026-08-10 23:59 UTCEPSS rescore
- 2026-08-09 13:46 UTCEPSS rescore
- 2026-08-08 23:19 UTCOSV refresh
- 2026-08-08 16:36 UTCEPSS rescore
- 2026-08-06 13:46 UTCEPSS rescore
- 2026-08-05 19:16 UTCEPSS rescore
- 2026-08-04 15:09 UTCEPSS rescore
- 2026-08-04 10:37 UTCEPSS rescore
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- 2026-08-02 02:26 UTCEPSS rescore
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- 2026-07-30 16:27 UTCEPSS rescore
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- 2026-07-28 15:35 UTCEPSS rescore
- 2026-07-26 14:54 UTCEPSS rescore
- 2026-07-25 14:17 UTCEPSS rescore
- 2026-07-25 14:17 UTCEPSS rescore
- 2026-07-24 14:17 UTCEPSS rescore
- 2026-07-23 22:11 UTCOSV refresh
- 2026-07-23 14:18 UTCEPSS rescore
- 2026-07-23 02:57 UTCEG score recompute
- 2026-07-22 14:07 UTCEPSS rescore
- 2026-07-22 14:07 UTCEPSS rescore
- 2026-07-21 15:24 UTCEPSS rescore
- 2026-07-20 17:07 UTCEPSS rescore
- 2026-07-19 14:30 UTCEPSS rescore
- 2026-07-19 14:30 UTCEPSS rescore
- 2026-07-19 02:28 UTCEPSS rescore
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- 2026-07-18 10:04 UTCEPSS rescore
- 2026-07-16 17:02 UTCEPSS rescore
- 2026-07-16 17:02 UTCEPSS rescore
- 2026-07-15 16:57 UTCEPSS rescore
- 2026-07-15 16:57 UTCEPSS rescore
- 2026-07-15 01:59 UTCEPSS rescore
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- 2026-07-13 22:29 UTCEPSS rescore
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- 2026-07-13 06:12 UTCEPSS rescore
- 2026-07-12 05:46 UTCEPSS rescore
- 2026-07-11 08:27 UTCEPSS rescore
- 2026-07-11 08:27 UTCEPSS rescore
- 2026-07-09 19:09 UTCEPSS rescore
- 2026-07-09 19:09 UTCEPSS rescore
- 2026-07-08 15:15 UTCEPSS rescore
- 2026-07-07 13:45 UTCEPSS rescore
- 2026-07-06 16:27 UTCEPSS rescore
- 2026-07-06 16:27 UTCEPSS rescore
- 2026-07-06 16:21 UTCOSV refresh
- 2026-07-06 02:23 UTCEPSS rescore
- 2026-07-06 02:23 UTCEPSS rescore
- 2026-07-05 02:30 UTCEPSS rescore
- 2026-07-04 06:30 UTCEPSS rescore
- 2026-07-02 17:01 UTCEPSS rescore
- 2026-07-01 15:06 UTCEPSS rescore
- 2026-06-30 23:22 UTCEPSS rescore
- 2026-06-30 23:22 UTCEPSS rescore
- 2026-06-29 14:06 UTCEPSS rescore
- 2026-06-29 14:06 UTCEPSS rescore
- 2026-06-28 14:07 UTCEPSS rescore
- 2026-06-28 14:07 UTCEPSS rescore
- 2026-06-28 04:55 UTCEPSS rescore
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- 2026-06-24 14:04 UTCEPSS rescore
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- 2026-06-23 21:32 UTCEPSS rescore
- 2026-06-23 21:32 UTCEPSS rescore
- 2026-06-22 14:25 UTCEPSS rescore
- 2026-06-22 14:25 UTCEPSS rescore
- 2026-06-21 14:56 UTCEPSS rescore
- 2026-06-21 14:56 UTCEPSS rescore
Frequently asked(5)
What is CVE-2025-48956?
When was CVE-2025-48956 disclosed?
Is CVE-2025-48956 actively exploited?
What is the CVSS score of CVE-2025-48956?
How do I remediate CVE-2025-48956?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2025-48956
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