NVD

CVE-2026-12491 Detail

Awaiting Enrichment

This CVE record has been marked for NVD enrichment efforts.

Description

A flaw was found in vLLM, an open-source library for large language model inference. This vulnerability arises from improper handling of image metadata, specifically EXIF orientation and PNG transparency (tRNS) data, during image processing. When images are converted to RGB, transparency information may be implicitly discarded or remapped, leading to unexpected rendering of transparent pixels and distortion of input content. This can result in the model misinterpreting image content, potentially affecting the integrity of processed data.

Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.

CVSS 4.0 Severity and Vector Strings:

NIST: NVD

N/A

NVD assessment not yet provided.

CVSS 3.x Severity and Vector Strings:

Nist CVSS score does not match with CNA score

CNA: Red Hat, Inc.

Base Score: 4.8 MEDIUM

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L

CVSS 2.0 Severity and Vector Strings:

National Institute of Standards and Technology

NIST: NVD

Base Score: N/A

NVD assessment not yet provided.

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URL	Source(s)	Tag(s)
https://access.redhat.com/security/cve/CVE-2026-12491	Red Hat, Inc.
https://bugzilla.redhat.com/show_bug.cgi?id=2489786	Red Hat, Inc.

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-115	Misinterpretation of Input	Red Hat, Inc.

Change History

2 change records found show changes

New CVE Received from Red Hat, Inc. 6/17/2026 9:20:04 AM

Action	Type	New Value
Added	Description	A flaw was found in vLLM, an open-source library for large language model inference. This vulnerability arises from improper handling of image metadata, specifically EXIF orientation and PNG transparency (tRNS) data, during image processing. When images are converted to RGB, transparency information may be implicitly discarded or remapped, leading to unexpected rendering of transparent pixels and distortion of input content. This can result in the model misinterpreting image content, potentially affecting the integrity of processed data.
Added	CVSS V3.1	AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
Added	CWE	CWE-115
Added	Reference	https://access.redhat.com/security/cve/CVE-2026-12491
Added	Reference	https://bugzilla.redhat.com/show_bug.cgi?id=2489786
Added	Affected	Record truncated, showing 2048 of 7198 characters. View Entire Change Record [{"vendor":"Red Hat","product":"Red Hat AI Inference Server","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"rhaiis/vllm-cpu-rhel9","cpes":["cpe:/a:redhat:ai_inference_server:3"]},{"vendor":"Red Hat","product":"Red Hat AI Inference Server","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"rhaiis/vllm-cuda-rhel9","cpes":["cpe:/a:redhat:ai_inference_server:3"]},{"vendor":"Red Hat","product":"Red Hat AI Inference Server","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"rhaiis/vllm-neuron-rhel9","cpes":["cpe:/a:redhat:ai_inference_server:3"]},{"vendor":"Red Hat","product":"Red Hat AI Inference Server","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"rhaiis/vllm-rocm-rhel9","cpes":["cpe:/a:redhat:ai_inference_server:3"]},{"vendor":"Red Hat","product":"Red Hat AI Inference Server","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"rhaiis/vllm-spyre-rhel9","cpes":["cpe:/a:redhat:ai_inference_server:3"]},{"vendor":"Red Hat","product":"Red Hat AI Inference Server","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"rhaiis/vllm-tpu-rhel9","cpes":["cpe:/a:redhat:ai_inference_server:3"]},{"vendor":"Red Hat","product":"Red Hat AI Inference Server","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"rhaii/vllm-cpu-rhel9","cpes":["cpe:/a:redhat:ai_inference_server:3"]},{"vendor":"Red Hat","product":"Red Hat AI Inference Server","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"rhaii/vllm-cuda-rhel9","cpes":["cpe:/a:redhat:ai_inference_server:3"]},{"vendor":"Red Hat","prod

Quick Info

CVE Dictionary Entry:
CVE-2026-12491
NVD Published Date:
06/17/2026
NVD Last Modified:
06/17/2026
Source:
Red Hat, Inc.

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Information Technology Laboratory

National Vulnerability Database