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.
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
| Date | Event | Detail |
| June 4, 2026 | Reserved | Reserved by VulDB |
| June 4, 2026 | Published | Published (CNA: VulDB) |
| October 16, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-10813 (LMCache). Public exploit reference added. |
| October 16, 2026 | PATCH SHIPPED | PATCH SHIPPED — CVE-2026-10813 (LMCache). Fixed in LMCache 0.5.5. |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| n/a | LMCache | — | 0.5.0 | 0.5.5 |
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.