MEDIUMPyPI →
Potential Timing Side-Channel Vulnerability in vLLM’s Chunk-Based Prefix Caching
Potential Timing Side-Channel Vulnerability in vLLM’s Chunk-Based Prefix Caching
Affected packages
- vllm— before 0.9.0
Exploit signal
- Known exploited (CISA KEV)
- No
- EPSS score
- —
- EPSS percentile
- —
EPSS is the probability a CVE is exploited in the wild; percentile is its rank among all CVEs.
Sources
- https://github.com/vllm-project/vllm/security/advisories/GHSA-4qjh-9fv9-r85r
- https://nvd.nist.gov/vuln/detail/CVE-2025-46570
- https://github.com/vllm-project/vllm/pull/17045
- https://github.com/vllm-project/vllm/commit/77073c77bc2006eb80ea6d5128f076f5e6c6f54f
- https://github.com/pypa/advisory-database/tree/main/vulns/vllm/PYSEC-2025-53.yaml
- https://github.com/vllm-project/vllm
Structured record: https://osv.dev/vulnerability/GHSA-4qjh-9fv9-r85r
Recommended response stack
Snyk — Scan your dependencies in CI and fix this vulnerability.→Socket — Detect malicious and compromised packages before they ship.→
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