CVE-2026-12491
Vllm: vllm: image exif rotation & png trns transparency not normalized, causing mismatch between model input and expectations
- State
- Published
- Severity
- 4.8 Medium
- Published
- Jun 17, 2026
- Updated
- Jul 7, 2026
- Reserved
- Jun 17, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 4.8 Medium | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L | redhat |
Weaknesses
- CWE-115 Misinterpretation of Input
Affected Products
| Product | Versions |
|---|---|
vLLMvllm-project |
|
Red Hat AI Inference ServerRed Hat | |
Red Hat AI Inference ServerRed Hat | |
Red Hat AI Inference ServerRed Hat | |
Red Hat AI Inference ServerRed Hat | |
Red Hat AI Inference ServerRed Hat | |
Red Hat AI Inference ServerRed Hat | |
Red Hat AI Inference ServerRed Hat | |
Red Hat AI Inference ServerRed Hat | |
Red Hat AI Inference ServerRed Hat | |
Red Hat AI Inference ServerRed Hat | |
Red Hat AI Inference ServerRed Hat | |
Red Hat AI Inference ServerRed Hat | |
Red Hat AI Inference ServerRed Hat | |
Red Hat Enterprise Linux AI (RHEL AI) 3Red Hat | |
Red Hat Enterprise Linux AI (RHEL AI) 3Red Hat | |
Red Hat Enterprise Linux AI (RHEL AI) 3Red Hat | |
Red Hat Enterprise Linux AI (RHEL AI) 3Red Hat | |
Red Hat Enterprise Linux AI (RHEL AI) 3Red Hat | |
Red Hat Enterprise Linux AI (RHEL AI) 3Red Hat | |
Red Hat Enterprise Linux AI (RHEL AI) 3Red Hat | |
Red Hat OpenShift AI (RHOAI)Red Hat | |
Red Hat OpenShift AI (RHOAI)Red Hat | |
Red Hat OpenShift AI (RHOAI)Red Hat | |
Red Hat OpenShift AI (RHOAI)Red Hat | |
Red Hat OpenShift AI (RHOAI)Red Hat | |
Red Hat OpenShift AI (RHOAI)Red Hat | |
Red Hat OpenShift AI (RHOAI)Red Hat | |
Red Hat OpenShift AI (RHOAI)Red Hat |
References
- https://access.redhat.com/security/cve/CVE-2026-12491vdb-entry
- RHBZ#2489786issue-tracking
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