CVE-2026-10813LMCache KV Cache utils.py hex_hash_to_int16 weak hash
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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."
- CVSS
- 3.6 LOW (v3.1, CNA)CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L/E:P/RL:O/RC:C
- Weakness (CWE)
- CWE-328, CWE-327
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulDB
- NVD analysis
- Deferred
- Record last updated
- Oct 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
n/a LMCache lmcache:lmcache | 0.5.0; 0.5.1; 0.5.2; 0.5.3; 0.5.4; 0.5.5 not affected | CNA record |
References
- https://vuldb.com/vuln/368261vdb-entry, technical-description
- https://vuldb.com/vuln/368261/ctisignature, permissions-required
- https://vuldb.com/cve/CVE-2026-10813third-party-advisory
- https://vuldb.com/submit/831641third-party-advisory
- https://github.com/LMCache/LMCache/issues/3301exploit, issue-tracking
- https://github.com/LMCache/LMCache/pull/4783issue-tracking, patch
- https://github.com/LMCache/LMCache/commit/ce08eea76ce5898200efee55f4932fd07a7cabebpatch
- https://pypi.org/project/lmcache/0.5.5/patch
- https://github.com/LMCache/LMCache/product
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.