Vulnerability-Lookup

CVE-2026-10813 (GCVE-0-2026-10813)

Vulnerability from cvelistv5 – Published: 2026-06-04 14:45 – Updated: 2026-06-04 17:28

Title

LMCache KV Cache utils.py hex_hash_to_int16 weak hash

Summary

A flaw has been found in LMCache up to 0.4.6. 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. The pull request to fix this issue awaits acceptance.

Severity

2 (Low)


                        
                          CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

3.6 (Low)


                        
                          CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L/E:P/RL:X/RC:R

3.6 (Low)


                        
                          CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L/E:P/RL:X/RC:R

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-04 17:28 UTC

CWE

CWE-328 - Use of Weak Hash
CWE-327 - Risky Cryptographic Algorithm

Assigner

VulDB

References

7 references

URL	Tags
https://vuldb.com/vuln/368261	vdb-entrytechnical-description
https://vuldb.com/vuln/368261/cti	signaturepermissions-required
https://vuldb.com/cve/CVE-2026-10813	third-party-advisory
https://vuldb.com/submit/831641	third-party-advisory
https://github.com/LMCache/LMCache/issues/3301	exploitissue-tracking
https://github.com/LMCache/LMCache/pull/2932	issue-trackingpatch
https://github.com/LMCache/LMCache/	product

Impacted products

1 product

Vendor	Product	Version
n/a	LMCache	Affected: 0.4.0 Affected: 0.4.1 Affected: 0.4.2 Affected: 0.4.3 Affected: 0.4.4 Affected: 0.4.5 Affected: 0.4.6 cpe:2.3:a:lmcache:lmcache::::::::

Credits

Dem00 (VulDB User) VulDB CNA Team

Show details on NVD website

JSON

To clipboard

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                "id": "CVE-2026-10813",
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FKIE_CVE-2026-10813

Vulnerability from fkie_nvd - Published: 2026-06-04 16:16 - Updated: 2026-07-22 20:10

Severity

3.6 (Low) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L

Summary

References

	URL	Tags
	cna@vuldb.com	https://github.com/LMCache/LMCache/
	cna@vuldb.com	https://github.com/LMCache/LMCache/issues/3301
	cna@vuldb.com	https://github.com/LMCache/LMCache/pull/2932
	cna@vuldb.com	https://vuldb.com/cve/CVE-2026-10813
	cna@vuldb.com	https://vuldb.com/submit/831641
	cna@vuldb.com	https://vuldb.com/vuln/368261
	cna@vuldb.com	https://vuldb.com/vuln/368261/cti

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:lmcache:lmcache:*:*:*:*:*:*:*:*"
          ],
          "modules": [
            "KV Cache Handler"
          ],
          "product": "LMCache",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "0.4.0"
            },
            {
              "status": "affected",
              "version": "0.4.1"
            },
            {
              "status": "affected",
              "version": "0.4.2"
            },
            {
              "status": "affected",
              "version": "0.4.3"
            },
            {
              "status": "affected",
              "version": "0.4.4"
            },
            {
              "status": "affected",
              "version": "0.4.5"
            },
            {
              "status": "affected",
              "version": "0.4.6"
            }
          ]
        }
      ],
      "source": "cna@vuldb.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw has been found in LMCache up to 0.4.6. 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. The pull request to fix this issue awaits acceptance."
    },
    {
      "lang": "es",
      "value": "Se ha encontrado una vulnerabilidad en LMCache hasta 0.4.6. Esto afecta a la funci\u00f3n hex_hash_to_int16 del archivo lmcache/integration/vllm/utils.py del componente KV Cache Gestor. La ejecuci\u00f3n de una manipulaci\u00f3n puede llevar al uso de un hash d\u00e9bil. El ataque debe lanzarse localmente. El ataque requiere un alto nivel de complejidad. Se indica que la explotabilidad es dif\u00edcil. El exploit ha sido publicado y puede ser utilizado. La pull request para solucionar este problema espera ser aceptada."
    }
  ],
  "id": "CVE-2026-10813",
  "lastModified": "2026-07-22T20:10:00.127",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "LOW",
        "cvssData": {
          "accessComplexity": "HIGH",
          "accessVector": "LOCAL",
          "authentication": "SINGLE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 2.4,
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:L/AC:H/Au:S/C:N/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 1.5,
        "impactScore": 4.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "cna@vuldb.com",
        "type": "Secondary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "LOW",
          "baseScore": 3.6,
          "baseSeverity": "LOW",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 1.0,
        "impactScore": 2.5,
        "source": "cna@vuldb.com",
        "type": "Secondary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "HIGH",
          "attackRequirements": "NONE",
          "attackVector": "LOCAL",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 1.1,
          "baseSeverity": "LOW",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "PROOF_OF_CONCEPT",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "LOW",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "LOW",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "LOW",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "cna@vuldb.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-10813",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-06-04T17:28:03.511680Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-06-04T16:16:32.883",
  "references": [
    {
      "source": "cna@vuldb.com",
      "url": "https://github.com/LMCache/LMCache/"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://github.com/LMCache/LMCache/issues/3301"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://github.com/LMCache/LMCache/pull/2932"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/cve/CVE-2026-10813"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/submit/831641"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/vuln/368261"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/vuln/368261/cti"
    }
  ],
  "sourceIdentifier": "cna@vuldb.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-327"
        },
        {
          "lang": "en",
          "value": "CWE-328"
        }
      ],
      "source": "cna@vuldb.com",
      "type": "Secondary"
    }
  ]
}

GHSA-3HH9-752G-5G22

Vulnerability from github – Published: 2026-06-04 18:30 – Updated: 2026-07-15 22:10

Summary

LMCache: 16-bit multimodal hash collision can poison KV cache entries

Details

Severity

3.6 (Low)


                  
                    CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L

1.1 (Low)


                  
                    CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "lmcache"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "0.4.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-10813"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-327"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-07-15T22:10:24Z",
    "nvd_published_at": "2026-06-04T16:16:32Z",
    "severity": "LOW"
  },
  "details": "A flaw has been found in LMCache up to 0.4.6. 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. The pull request to fix this issue awaits acceptance.",
  "id": "GHSA-3hh9-752g-5g22",
  "modified": "2026-07-15T22:10:24Z",
  "published": "2026-06-04T18:30:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-10813"
    },
    {
      "type": "WEB",
      "url": "https://github.com/LMCache/LMCache/issues/3301"
    },
    {
      "type": "WEB",
      "url": "https://github.com/LMCache/LMCache/pull/2932"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/LMCache/LMCache"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/cve/CVE-2026-10813"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/submit/831641"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/368261"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/368261/cti"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P",
      "type": "CVSS_V4"
    }
  ],
  "summary": "LMCache: 16-bit multimodal hash collision can poison KV cache entries"
}

PYSEC-2026-3480

Vulnerability from pysec - Published: 2026-07-23 11:41 - Updated: 2026-07-23 14:31

Details

Severity

3.6 (Low)


                  
                    CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L

1.1 (Low)


                  
                    CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

Impacted products

Name	purl
lmcache	pkg:pypi/lmcache

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "lmcache",
        "purl": "pkg:pypi/lmcache"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "0.4.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.3.0",
        "0.3.1",
        "0.3.1.post1",
        "0.3.10",
        "0.3.10.post1",
        "0.3.10.post2",
        "0.3.11",
        "0.3.12",
        "0.3.13",
        "0.3.14",
        "0.3.15",
        "0.3.2",
        "0.3.3",
        "0.3.4",
        "0.3.5",
        "0.3.6",
        "0.3.7",
        "0.3.9",
        "0.3.9.post1",
        "0.3.9.post2",
        "0.4.1",
        "0.4.2",
        "0.4.3",
        "0.4.4",
        "0.4.5",
        "0.4.6"
      ]
    }
  ],
  "aliases": [
    "CVE-2026-10813",
    "GHSA-3hh9-752g-5g22"
  ],
  "details": "A flaw has been found in LMCache up to 0.4.6. 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. The pull request to fix this issue awaits acceptance.",
  "id": "PYSEC-2026-3480",
  "modified": "2026-07-23T14:31:37.178408Z",
  "published": "2026-07-23T11:41:38.726472Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-10813"
    },
    {
      "type": "WEB",
      "url": "https://github.com/LMCache/LMCache/issues/3301"
    },
    {
      "type": "WEB",
      "url": "https://github.com/LMCache/LMCache/pull/2932"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/LMCache/LMCache"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/cve/CVE-2026-10813"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/submit/831641"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/368261"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/368261/cti"
    },
    {
      "type": "PACKAGE",
      "url": "https://pypi.org/project/lmcache"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-3hh9-752g-5g22"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P",
      "type": "CVSS_V4"
    }
  ],
  "summary": "LMCache: 16-bit multimodal hash collision can poison KV cache entries"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

CVE-2026-10813 (GCVE-0-2026-10813)

FKIE_CVE-2026-10813

GHSA-3HH9-752G-5G22

PYSEC-2026-3480

Tags

Sightings

Nomenclature