vLLM is an inference and serving engine for large language models (LLMs). Prior to 0.23.1rc0, ll temperature validation gates use comparison operators (<, >), which silently evaluate to False for NaN and for positive Infinity in Python's IEEE 754 float semantics. Both values pass every guard and propagate to GPU sampling kernels, where they produce undefined behavior or CUDA errors that can crash the inference worker. This vulnerability is fixed in 0.23.1rc0.
CVE-2026-54235
“—” beside the score: it is equal to NVD's CVSS score.
This medium-severity CVE scores 6.5 under NVD CVSS v3. EPSS exploit probability: 0.4% (39th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.
Also known asEUVD-2026-38402 (ENISA EUVD) · GHSA-7h4p-rffg-7823 (GitHub Security Advisories)Source: ENISA EUVD
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v3
- 6.5
- EG Score
- 6.5MEDIUMmedium confidence
- EG Risk
- 44EG Risk 44/100
EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.
How it’s computed (value × EchelonGraph’s weight)Severity65% × 45%Impact severity (EG Severity): CVSS 6.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.Exploitation0.4% × 40%FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.Automatability100% × 15%CISA's SSVC Automatable value: yes (Vulnrichment).SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high. - EPSS PROB
- 0.4%
- EPSS %ILE
- 39th
- KEV
- Not listed
What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)
The EG score (6.5): severity, escalated by confirmed exploitation. This CVE's 6.5 is its impact severity (EG Severity), not escalated.
- EG Severity
- 6.5 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.NVD CVSS v3 · CVSS v3.0 or v3.1
- EG Likelihood
- 0.4% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-28). FIRST's exploitation probability, not an EchelonGraph model.
- Confirmed exploitation
- None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
- EG Priority
- SSVC Track at medium mission impactTrack at low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.
SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).
A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table
BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; 60 days if it is not.
The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it
Published
June 17, 2026
Last Modified
October 25, 2026
Advisory Details (3)
Auto-updated Jun 23, 2026temperature=NaN and temperature=Infinity bypass validation and propagate to GPU kernels · Advisory · vllm-project/vllm · GitHub
https://github.com/vllm-project/vllm/security/advisories/GHSA-7h4p-rffg-7823[Security] Reject non-finite temperature and repetition_penalty values
Fix merged in vllm-project/vllm PR #45116 on 2026-06-11 — awaiting tagged release
https://github.com/vllm-project/vllm/pull/45116commit d598d239737c (vllm-project/vllm)
Fix landed in vllm-project/vllm commit d598d239737c — awaiting tagged release
https://github.com/vllm-project/vllm/commit/d598d239737cfa37bcfcb98886ec3f3557fc7198Vendor Advisories for CVE-2026-54235(5)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHSA-2026:61629Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat AI Inference Server 3.2.2 (ROCm)
- RHSA-2026:61627Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat AI Inference Server 3.2.2 (CUDA)
- RHSA-2026:36006Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat AI Inference Server 3.2.2 (ROCm)
- RHSA-2026:36005Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat AI Inference Server 3.2.2 (CUDA)
- GHSA-7h4p-rffg-7823GitHub Security AdvisoriesMedium
vLLM: temperature=NaN and temperature=Infinity bypass validation and propagate to GPU kernels
Patch Availability(5)
| Vendor / Ecosystem | Fix (by version range) / Patch | Released | Source |
|---|---|---|---|
| redhat | rhaiis/vllm-cuda-rhel9:1787860580 | 2026-08-31 | redhat |
| redhat | rhaiis/vllm-rocm-rhel9:1787884873 | 2026-08-31 | redhat |
| redhat | rhaiis/vllm-rocm-rhel9:1782951244 | 2026-07-06 | redhat |
| redhat | rhaiis/vllm-cuda-rhel9:1782951012 | 2026-07-06 | redhat |
| pip | vllm | — | ghsa |
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 | Fix by version range | Dependents |
|---|---|---|---|
| vllm | 0.0.1 ... 0.9.2 (89 versions) |
| — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 9× in last 7d / 41× in last 30d)
Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.
Showing the most recent 100 of 233 refreshes on record for this CVE.
A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 133 oldest rows on record are not shown and were not checked, so the counts can still include repeats.
- 2026-11-01 16:34 UTCEPSS rescoreEPSS 0.4% · 39th percentile
- 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.4% · 39th percentile
- 2026-10-30 16:34 UTCEPSS rescoreEPSS 0.4% · 39th percentile
- 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.4% · 39th percentile
- 2026-10-29 16:24 UTCEG score recompute
- 2026-10-29 16:24 UTCVendor advisory
- 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.4% · 39th percentile
- 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.4% · 38th percentile
- 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.4% · 38th percentile
- 2026-10-25 23:36 UTCEG score recompute
- 2026-10-25 23:36 UTCVendor advisory
- 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.4% · 38th percentile
- 2026-10-25 14:19 UTCEG score recompute
- 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.4% · 38th percentile
- 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.4% · 38th percentile
- 2026-10-22 21:23 UTCEG score recompute
- 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.4% · 38th percentile
- 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.4% · 38th percentile
- 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.4% · 37th percentile
- 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.4% · 37th percentile
- 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.4% · 37th percentile
- 2026-10-18 03:31 UTCEG score recompute
- 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.4% · 37th percentile
- 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.4% · 37th percentile
- 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.4% · 37th percentile
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- 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.4% · 37th percentile
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- 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.4% · 37th percentile
- 2026-10-12 15:56 UTCEG score recompute
- 2026-10-11 19:39 UTCEG score recompute
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- 2026-10-11 14:18 UTCEG score recompute
- 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.4% · 37th percentile
- 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 37th percentile
- 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 37th percentile
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- 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 37th percentile
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- 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.4% · 36th percentile
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- 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.4% · 36th percentile
- 2026-10-03 06:09 UTCOSV refresh
- 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.4% · 36th percentile
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- 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.4% · 36th percentile
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- 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.4% · 36th percentile
- 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 36th percentile
- 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.4% · 36th percentile
- 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.4% · 36th percentile
- 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.4% · 38th percentile
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- 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.4% · 38th percentile
- 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.4% · 38th percentile
- 2026-09-14 03:08 UTCEG score recompute
- 2026-09-14 03:08 UTCVendor advisory
- 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.4% · 37th percentile
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- 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.4% · 37th percentile
- 2026-08-30 22:26 UTCEG score recompute
- 2026-08-30 22:26 UTCVendor advisory
- 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.4% · 37th percentile
- 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.4% · 37th percentile
- 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.4% · 37th percentile
- 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.4% · 37th percentile
- 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.4% · 37th percentile
- 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.4% · 37th percentile
- 2026-08-24 06:59 UTCVendor advisory
- 2026-08-23 04:29 UTCEG score recompute
- 2026-08-23 04:29 UTCVendor advisory
- 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.3% · 19th percentile
- 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.3% · 19th percentile
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- 2026-08-21 12:22 UTCVendor advisory
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- 2026-08-20 10:17 UTCVendor advisory
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- 2026-08-19 08:12 UTCVendor advisory
- 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.3% · 19th percentile
- 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.3% · 19th percentile
- 2026-08-16 15:27 UTCEG score recompute
- 2026-08-16 15:27 UTCVendor advisory
- 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.3% · 19th percentile
- 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.3% · 19th percentile
- 2026-08-15 13:23 UTCEG score recompute
- 2026-08-15 13:23 UTCVendor advisory
- 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.3% · 19th percentile
- 2026-08-14 11:19 UTCEG score recompute
- 2026-08-14 11:19 UTCVendor advisory
Related CVEs(same product + same vendor + same CWE)
Same product
10 shownPyPI:vllm
Same vendor
10 shownredhat:RHSA-2026:36005 · redhat:RHSA-2026:61627
Frequently asked(5)
What is CVE-2026-54235?
When was the CVE record for CVE-2026-54235 published?
Is CVE-2026-54235 actively exploited?
What is the CVSS score of CVE-2026-54235?
How do I remediate CVE-2026-54235?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-54235
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