CVE-2026-103241CWE-404

CVE-2026-103241

Medium · published September 30, 2026

CVSS v3.1
5.3
EPSS
1%
Percentile
53.1
In the wild
Unconfirmed
What it is

A flaw has been found in vllm-project vLLM up to 0.26.0. This vulnerability affects unknown code of the file rust/src/parser/src/unified/gemma4.rs of the component Gemma4UnifiedParser. Executing a manipulation can lead to denial of service. The attack may be launched remotely. The exploit has been published and may be used. Upgrading to version 0.29.1rc0 is able to resolve this issue. This patch is called 3439bad37e68ba9755a46f4f6b44a4aeaf1f60a9. Upgrading the affected component is advised.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS v4.0
6.9 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
EPSS
0.00714 · 53.1th percentile
Weakness
CWE-404 · Improper Resource Shutdown or Release
Published
2026-09-30T21:16Z
Affected products (1)
ProductVersionsFixed in
vllm/vllm≤ 0.26.0—
References (10)
https://gist.github.com/Yunzez/8e98d656aa667095b513161eb056d28e · [email protected]https://github.com/vllm-project/vllm/ · [email protected]https://github.com/vllm-project/vllm/commit/3439bad37e68ba9755a46f4f6b44a4aeaf1f60a9 · [email protected]https://github.com/vllm-project/vllm/issues/50927 · [email protected]https://github.com/vllm-project/vllm/pull/54303 · [email protected]https://github.com/vllm-project/vllm/releases/tag/v0.29.1rc0 · [email protected]https://vuldb.com/cve/CVE-2026-103241 · [email protected]https://vuldb.com/submit/956250 · [email protected]https://vuldb.com/vuln/411965 · [email protected]https://vuldb.com/vuln/411965/cti · [email protected]
EPSS history
Timeline
  • 02 OCT 03:41Z
    EPSS moved — → 1%
    epss
  • 30 SEP 16:45Z
    vllm-project vLLM Gemma4UnifiedParser gemma4.rs denial of service
    cvelistv5