{"id":"PYSEC-2026-4346","details":"vLLM is an inference and serving engine for large language models. Prior to 0.32.0, ImageMediaIO passes attacker-controlled image bytes to Pillow through Image.open(BytesIO(data)) without restricting decoder selection, and the MIME label does not constrain the selected format. Image-capable request paths through parse_image() and fetch_image() can therefore dispatch an EPS payload to host components. A host with Ghostscript affected by CVE-2024-29510 can execute commands with the vLLM process's privileges, while environments using Pillow 12.0.0 through 12.2.0 can trigger CVE-2026-59203 and exhaust media-loading workers. Deployments without the applicable vulnerable dependency are not affected by that corresponding impact. This issue is fixed in version 0.32.0.","aliases":["CVE-2026-115915","GHSA-h3rc-j82p-2c3h"],"modified":"2026-10-29T11:00:02.783659453Z","published":"2026-10-26T18:17:38.883Z","references":[{"type":"ADVISORY","url":"https://github.com/vllm-project/vllm/releases/tag/v0.32.0"},{"type":"FIX","url":"https://github.com/vllm-project/vllm/commit/710ac56e691d4713feca50a43e6c440f07d373fd"},{"type":"FIX","url":"https://github.com/vllm-project/vllm/pull/60022"},{"type":"FIX","url":"https://github.com/vllm-project/vllm/security/advisories/GHSA-h3rc-j82p-2c3h"}],"affected":[{"package":{"name":"vllm","ecosystem":"PyPI","purl":"pkg:pypi/vllm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.30.0"},{"fixed":"0.32.0"}]}],"versions":["0.30.0","0.31.0"],"ecosystem_specific":{},"database_specific":{"source":"https://github.com/pypa/advisory-database/blob/main/vulns/vllm/PYSEC-2026-4346.yaml"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}