Dashboard / CVE-2026-114049

CVE-2026-114049

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 63/100
Published: 2026-10-21 Modified: 2026-10-28 First seen: 2026-10-29 Status: active

Attack Surface

Network No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: High
PR: None
UI: None
AT: Present
VC: None
VI: Low
VA: None

Description

vLLM before 0.31.0 contains a cross-request mask leak in InputBatch.condense() that allows remote attackers to constrain other clients' outputs by leaving stale allowed_token_ids rows. Attackers can submit concurrent constrained generate requests, including via unauthenticated /invocations, so recycled batch slots apply their token allowlist to victims' unrestricted requests.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
vllm-project vllm 0 < 0.31.0

References & Advisories (2)

Bug Bounty Relevance

63 / 100
✓ Network accessible
✓ No authentication
✓ No user interaction

CVSS Score

6.3 / 10.0 v4.0
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

EPSS — Exploitation Probability

0.27%
Raw Score 0.002650
Percentile 18.4%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00265
2026-10-28
0.00265

Intelligence Sources

mitre ref →
nvd ref →

External Links