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No exploitation reportedFix available

CVE-2026-27893

No exploitation reported by the sources we read.

  • Published2026-03-27
  • Fixed in0.18.0
  • WeaknessCWE-501 · CWE-693

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

vLLM is an inference and serving engine for large language models (LLMs). Starting in version 0.10.1 and prior to version 0.18.0, two model implementation files hardcode `trust_remote_code=True` when loading sub-components, bypassing the user's explicit `--trust-remote-code=False` security opt-out. This enables remote code execution via malicious model repositories even when the user has explicitly disabled remote code trust. Version 0.18.0 patches the issue.

Timeline

dates in UTC
  1. 2026-03-2700:16CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2026-27893?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2026-27893?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV
Vllm
BranchAffectedFixed in
0.x≥ 0.10.1, < 0.18.00.18.0

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

  • RHSA-2026:37275 Red Hat Product Security2 products fixed

    Red Hat Security Advisory: RHOAI 3.3.5 - Red Hat OpenShift AI

  • RHSA-2026:24977 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: RHOAI 2.25.7 - Red Hat OpenShift AI

  • RHSA-2026:19712 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: RHOAI 3.3.3 - Red Hat OpenShift AI

  • RHSA-2026:10141 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: Red Hat Enterprise Linux AI 3.3.1

  • RHSA-2026:10140 Red Hat Product Security7 products fixed

    Red Hat Security Advisory: Red Hat Enterprise Linux AI 3.3.1

Full record on NVD

Fix

  1. Update Vllm to 0.18.0
  2. Vendor fix Red Hat Product Security RHSA-2026:37275 · 2 productsFor Red Hat OpenShift AI 3.3.5 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this errata update: https://docs.redhat.com/en/documentation/red_hat_openshift_ai/
  3. Vendor fix Red Hat Product Security RHSA-2026:24977 · 1 productFor Red Hat OpenShift AI 2.25.7 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this errata update: https://docs.redhat.com/en/documentation/red_hat_openshift_ai/
  4. Vendor fix Red Hat Product Security RHSA-2026:19712 · 1 productFor Red Hat OpenShift AI 3.3.3 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this errata update: https://docs.redhat.com/en/documentation/red_hat_openshift_ai/
  5. Vendor fix Red Hat Product Security RHSA-2026:10141 · 1 productBefore applying this update, ensure all previously released errata relevant to your system have been applied.
  6. Workaround from the vendor Red Hat Product Security RHSA-2026:37275 · 235 productsMitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

  • NVDCVE recordread 2026-10-23
  • CISA-ADPSSVC decisionnone2026-03-27
  • OpenCVESSVC decisionnone—
  • CNACVSS 3.18.8read 2026-10-23
  • CNAweakness (CWE)CWE-501, CWE-693read 2026-10-23
  • FIRST EPSSEPSS score1.9 %2026-10-22
  • OSVaffected packages—

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
2026-03-27
Last Modified
2026-07-21
NVD status
Modified

Frequently asked questions

What is CVE-2026-27893?

vLLM is an inference and serving engine for large language models (LLMs). Starting in version 0.10.1 and prior to version 0.18.0, two model implementation files hardcode `trust_remote_code=True` when loading sub-components, bypassing the user's explicit `--trust-remote-code=False` security opt-out. This enables remote code execution via malicious model repositories even when the user has explicitly disabled remote code trust. Version 0.18.0 patches the issue.

Is CVE-2026-27893 actively exploited?

Active exploitation of CVE-2026-27893 has not been confirmed. Its EPSS score was 1.9% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-27893?

CVE-2026-27893 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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