LMCache KV Cache utils.py hex_hash_to_int16 weak hash
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."
CVE-2026-10813
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-10813
LMCache
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"cpes": [
"cpe:2.3:a:lmcache:lmcache:*:*:*:*:*:*:*:*"
],
"vendor": "n/a",
"modules": [
"KV Cache Handler"
],
"product": "LMCache",
"versions": [
{
"status": "affected",
"version": "0.5.0"
},
{
"status": "affected",
"version": "0.5.1"
},
{
"status": "affected",
"version": "0.5.2"
},
{
"status": "affected",
"version": "0.5.3"
},
{
"status": "affected",
"version": "0.5.4"
},
{
"status": "unaffected",
"version": "0.5.5"
}
]
}
]- Related CVEs
- CVE-2026-10813
Source reference:
/cveMetadata/cveId
Publisher severity
low
Source reference: /containers/cna/metrics
- Event
- #34541 · Revision 1
- Added to Heist Feed
- Publisher date