Vulnerability-Lookup

CVE-2026-1260 (GCVE-0-2026-1260)

Vulnerability from cvelistv5 – Published: 2026-01-22 17:06 – Updated: 2026-07-15 01:22

Title

Invalid Memory Access in Sentencepiece,

Summary

Invalid memory access in Sentencepiece versions less than 0.2.1 when using a vulnerable model file, which is not created in the normal training procedure.

Severity

8.5 (High)


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

7.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-01-22 18:22 UTC

CWE

CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

Assigner

Google CNA under the Google root

CNA scorecard B 77/100 over 40 records in the last 180 days details

References

6 references

URL	Tags
https://github.com/google/sentencepiece/releases/…
https://access.redhat.com/security/cve/CVE-2026-1260	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2432079	issue-trackingx_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/v…	x_sadp-csaf-vex
https://access.redhat.com/errata/RHSA-2026:3782	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3713	vendor-advisoryx_refsource_REDHAT

Impacted products

10 products

Vendor	Product	Version	CPE status
Google	Sentencepiece	Affected: All versions prior to 0.2.1	guessed
Red Hat	Red Hat OpenShift AI 2.25	Unaffected: 1772093351 , < * (rpm) cpe:/a:redhat:openshift_ai:2.25::el9
Red Hat	Red Hat OpenShift AI 2.25	Unaffected: 1772093252 , < * (rpm) cpe:/a:redhat:openshift_ai:2.25::el9
Red Hat	Red Hat OpenShift AI 2.25	Unaffected: 1772093260 , < * (rpm) cpe:/a:redhat:openshift_ai:2.25::el9
Red Hat	Red Hat OpenShift AI 2.25	Unaffected: 1772093338 , < * (rpm) cpe:/a:redhat:openshift_ai:2.25::el9
Red Hat	Red Hat OpenShift AI 2.25	Unaffected: 1772093324 , < * (rpm) cpe:/a:redhat:openshift_ai:2.25::el9
Red Hat	Red Hat OpenShift AI 3.3	Unaffected: 1771608633 , < * (rpm) cpe:/a:redhat:openshift_ai:3.3::el9
Red Hat	Red Hat AI Inference Server	cpe:/a:redhat:ai_inference_server:3
Red Hat	Red Hat Enterprise Linux AI (RHEL AI) 3	cpe:/a:redhat:enterprise_linux_ai:3
Red Hat	Red Hat OpenShift AI (RHOAI)	cpe:/a:redhat:openshift_ai

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              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "Sentencepiece",
              "vendor": "Google",
              "versions": [
                {
                  "status": "affected",
                  "version": "All versions prior to 0.2.1"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
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                  "value": "\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003eInvalid memory access in Sentencepiece versions less than 0.2.1 when using a vulnerable model file, which is not created in the normal training procedure.\u003c/span\u003e\u003cbr\u003e"
                }
              ],
              "value": "Invalid memory access in Sentencepiece versions less than 0.2.1 when using a vulnerable model file, which is not created in the normal training procedure."
            }
          ],
          "impacts": [
            {
              "capecId": "CAPEC-253",
              "descriptions": [
                {
                  "lang": "en",
                  "value": "CAPEC-253: Remote Code Execution through Mitigation Bypass"
                }
              ]
            }
          ],
          "metrics": [
            {
              "cvssV4_0": {
                "Automatable": "NOT_DEFINED",
                "Recovery": "NOT_DEFINED",
                "Safety": "NOT_DEFINED",
                "attackComplexity": "LOW",
                "attackRequirements": "NONE",
                "attackVector": "LOCAL",
                "baseScore": 8.5,
                "baseSeverity": "HIGH",
                "exploitMaturity": "NOT_DEFINED",
                "privilegesRequired": "NONE",
                "providerUrgency": "NOT_DEFINED",
                "subAvailabilityImpact": "NONE",
                "subConfidentialityImpact": "NONE",
                "subIntegrityImpact": "NONE",
                "userInteraction": "PASSIVE",
                "valueDensity": "NOT_DEFINED",
                "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                "version": "4.0",
                "vulnAvailabilityImpact": "HIGH",
                "vulnConfidentialityImpact": "HIGH",
                "vulnIntegrityImpact": "HIGH",
                "vulnerabilityResponseEffort": "NOT_DEFINED"
              },
              "format": "CVSS",
              "scenarios": [
                {
                  "lang": "en",
                  "value": "GENERAL"
                }
              ]
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-119",
                  "description": "CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-01-22T17:06:17.340Z",
            "orgId": "14ed7db2-1595-443d-9d34-6215bf890778",
            "shortName": "Google"
          },
          "references": [
            {
              "url": "https://github.com/google/sentencepiece/releases/tag/v0.2.1"
            }
          ],
          "source": {
            "discovery": "UNKNOWN"
          },
          "title": "Invalid Memory Access in Sentencepiece,",
          "x_generator": {
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        }
      },
      "cveMetadata": {
        "assignerOrgId": "14ed7db2-1595-443d-9d34-6215bf890778",
        "assignerShortName": "Google",
        "cveId": "CVE-2026-1260",
        "datePublished": "2026-01-22T17:06:17.340Z",
        "dateReserved": "2026-01-20T20:25:05.556Z",
        "dateUpdated": "2026-06-30T02:45:54.060Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

PYSEC-2026-1909

Vulnerability from pysec - Published: 2026-07-07 16:03 - Updated: 2026-07-07 17:25

Details

Invalid memory access in Sentencepiece versions less than 0.2.1 when using a vulnerable model file, which is not created in the normal training procedure.

Severity

8.5 (High)


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

Impacted products

Name	purl
sentencepiece	pkg:pypi/sentencepiece

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "sentencepiece",
        "purl": "pkg:pypi/sentencepiece"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.2.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.0.0",
        "0.0.2",
        "0.0.3",
        "0.0.4",
        "0.0.5",
        "0.0.6",
        "0.0.7",
        "0.0.9",
        "0.1.0",
        "0.1.1",
        "0.1.2",
        "0.1.3",
        "0.1.4",
        "0.1.5",
        "0.1.6",
        "0.1.7",
        "0.1.8",
        "0.1.81",
        "0.1.82",
        "0.1.83",
        "0.1.85",
        "0.1.86",
        "0.1.90",
        "0.1.91",
        "0.1.92",
        "0.1.94",
        "0.1.95",
        "0.1.96",
        "0.1.97",
        "0.1.98",
        "0.1.99",
        "0.2.0"
      ]
    }
  ],
  "aliases": [
    "CVE-2026-1260",
    "GHSA-38vq-g6vr-w8wf"
  ],
  "details": "Invalid memory access in Sentencepiece versions less than 0.2.1 when using a vulnerable model file, which is not created in the normal training procedure.",
  "id": "PYSEC-2026-1909",
  "modified": "2026-07-07T17:25:22.385776Z",
  "published": "2026-07-07T16:03:20.003357Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-1260"
    },
    {
      "type": "WEB",
      "url": "https://github.com/google/sentencepiece/commit/d856b67fdb3492e035489abf9b3aaf486144b2c0"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/google/sentencepiece"
    },
    {
      "type": "WEB",
      "url": "https://github.com/google/sentencepiece/releases/tag/v0.2.1"
    },
    {
      "type": "PACKAGE",
      "url": "https://pypi.org/project/sentencepiece"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-38vq-g6vr-w8wf"
    }
  ],
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Sentencepiece has a a heap overflow issue"
}

RHSA-2026:3713

Vulnerability from csaf_redhat - Published: 2026-03-04 07:18 - Updated: 2026-10-30 15:47

Summary

Red Hat Security Advisory: RHOAI 3.3 - Red Hat OpenShift AI

Severity

Critical

Scope

46 vulnerabilities in this advisory, including CVE-2026-1260.

CVE-2026-1260

A flaw was found in Sentencepiece. This flaw involves invalid memory access when the software processes a specially crafted, vulnerable model file. A local attacker could exploit this by tricking a user into loading such a file. Successful exploitation could lead to a denial of service, information disclosure, or potentially arbitrary code execution.

7.8 (High)


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

Fixed: 1 product Known not affected: 232 products

https://access.redhat.com/errata/RHSA-2026:3713

Open the full advisory

RHSA-2026:3782

Vulnerability from csaf_redhat - Published: 2026-03-04 18:23 - Updated: 2026-10-30 15:47

Summary

Red Hat Security Advisory: RHOAI 2.25.3 - Red Hat OpenShift AI

Severity

Critical

Scope

33 vulnerabilities in this advisory, including CVE-2026-1260.

CVE-2026-1260

7.8 (High)


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

Fixed: 5 products Known not affected: 201 products

https://access.redhat.com/errata/RHSA-2026:3782

Open the full advisory

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.

Vulnerability timeline

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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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-1260 (GCVE-0-2026-1260)

PYSEC-2026-1909

RHSA-2026:3713

RHSA-2026:3782

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Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour