boxscore/security
CVE · referencelatest edition

Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-10813

n/a LMCache — LMCache KV Cache utils.py hex_hash_to_int16 weak hash
  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   L   H   N   L   N   N   L   L    1.1   .0008    0.1     —
AFFECTED
  Product  Versions  Fixed
  LMCache  0.5.0 –   0.5.5
TIMELINE
  Jun 4   Reserved by VulDB
  Jun 4   Published (CNA: VulDB)
  Oct 16  EXPLOIT PUBLISHED — CVE-2026-10813 (LMCache). Public exploit reference added.
  Oct 16  PATCH SHIPPED — CVE-2026-10813 (LMCache). Fixed in LMCache 0.5.5.
CWE-327, CWE-328 · CNA: VulDB · CVSS v4.0 · 10 references · NVD status: Deferred

Description

A flaw has been found in LMCache up to 0.5.4. This affects the function hex_hash_to_int16 of the file lmcache/integration/vllm/utils.py of the component KV Cache Handler. Executing a manipulation can lead to use of weak hash. The attack needs to be launched locally. The attack requires a high level of complexity. It is indicated that the exploitability is difficult. The exploit has been published and may be used. Upgrading to version 0.5.5 is able to mitigate this issue. This patch is called ce08eea76ce5898200efee55f4932fd07a7cabeb. It is suggested to upgrade the affected component. A contributor of the project confirms: "hex_hash_to_int16() was introduced in 0.3.1 (PR #882, commit f5174701). It is not present in 0.3.0, and it is still present in 0.4.7 through 0.5.4."

Lifecycle

Complete event history — 4 events, chronological
DateEventDetail
June 4, 2026ReservedReserved by VulDB
June 4, 2026PublishedPublished (CNA: VulDB)
October 16, 2026EXPLOIT PUBLISHEDEXPLOIT PUBLISHED — CVE-2026-10813 (LMCache). Public exploit reference added.
October 16, 2026PATCH SHIPPEDPATCH SHIPPED — CVE-2026-10813 (LMCache). Fixed in LMCache 0.5.5.

Affected

Affected products and packages — 1 row
VendorProduct / PackageEcosystemVersion introducedFixed
n/aLMCache—0.5.00.5.5

Weaknesses

CWE-327 · CWE-328

References (10)

Related

Authoritative record: CVE-2026-10813 at cve.org

Weaknesses: CWE-327 · CWE-328

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-10813 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.