Vulnerability-Lookup

CVE-2026-87795 (GCVE-0-2026-87795)

Vulnerability from cvelistv5 – Published: 2026-09-09 10:07 – Updated: 2026-09-09 10:07

Title

zstd-jni 1.2.0 through 1.5.7-13 Out-of-Bounds Read via ZstdDictCompress

Summary

zstd-jni versions before 1.5.7-14 fail to validate offset and length parameters in the ZstdDictCompress constructor, allowing out-of-bounds memory reads. Attackers can supply untrusted offset or length values to read native heap memory into the compression dictionary, typically causing JVM crashes.

Severity

8.8 (High)


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

8.2 (High)


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

CWE

CWE-125 - Out-of-bounds Read

Assigner

VulnCheck mitre root

References

8 references

URL	Tags
https://github.com/luben/zstd-jni/security/adviso…	vendor-advisory
https://github.com/luben/zstd-jni/commit/0d64de4d…	patch
https://github.com/luben/zstd-jni/blob/v1.5.7-13/…	technical-description
https://github.com/luben/zstd-jni/blob/v1.5.7-13/…	technical-description
https://github.com/luben/zstd-jni/commit/1c4e5a6c…	technical-descriptionpatch
https://github.com/luben/zstd-jni/releases/tag/v1…	release-notes
https://github.com/luben/zstd-jni	product
https://www.vulncheck.com/advisories/zstd-jni-1.2…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version	CPE status
luben	zstd-jni	Affected: 1.2.0 , < 1.5.7-14 (custom)	guessed

Date Public

2026-08-15 00:00

Credits

Yu Bao, PayPal Cyber Security Team

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "collectionURL": "https://repo1.maven.org/maven2/com/github/luben/zstd-jni/",
          "defaultStatus": "unaffected",
          "packageURL": "pkg:maven/com.github.luben/zstd-jni",
          "product": "zstd-jni",
          "repo": "https://github.com/luben/zstd-jni",
          "vendor": "luben",
          "versions": [
            {
              "lessThan": "1.5.7-14",
              "status": "affected",
              "version": "1.2.0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Yu Bao, PayPal Cyber Security Team"
        }
      ],
      "datePublic": "2026-08-15T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "zstd-jni versions before 1.5.7-14 fail to validate offset and length parameters in the ZstdDictCompress constructor, allowing out-of-bounds memory reads. Attackers can supply untrusted offset or length values to read native heap memory into the compression dictionary, typically causing JVM crashes."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "NONE"
          },
          "format": "CVSS"
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
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            "baseScore": 8.2,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-125",
              "description": "Out-of-bounds Read",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-09T10:07:28.656Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "GitHub Security Advisory (GHSA-ff36-7w3w-g8rm)",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://github.com/luben/zstd-jni/security/advisories/GHSA-ff36-7w3w-g8rm"
        },
        {
          "name": "Fix commit",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/luben/zstd-jni/commit/0d64de4dee6606ff506be36c7f2e714ad0c80fdb"
        },
        {
          "name": "Broken bounds check at v1.5.7-13",
          "tags": [
            "technical-description"
          ],
          "url": "https://github.com/luben/zstd-jni/blob/v1.5.7-13/src/main/java/com/github/luben/zstd/ZstdDictCompress.java"
        },
        {
          "name": "Native init that trusts the offset and length",
          "tags": [
            "technical-description"
          ],
          "url": "https://github.com/luben/zstd-jni/blob/v1.5.7-13/src/main/native/jni_fast_zstd.c"
        },
        {
          "name": "Commit that introduced the unchecked native path",
          "tags": [
            "technical-description",
            "patch"
          ],
          "url": "https://github.com/luben/zstd-jni/commit/1c4e5a6c3ce8458095225d987d669e6a0937734a"
        },
        {
          "name": "zstd-jni v1.5.7-14 Release Notes",
          "tags": [
            "release-notes"
          ],
          "url": "https://github.com/luben/zstd-jni/releases/tag/v1.5.7-14"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://github.com/luben/zstd-jni"
        },
        {
          "name": "VulnCheck Advisory: zstd-jni 1.2.0 through 1.5.7-13 Out-of-Bounds Read via ZstdDictCompress",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/zstd-jni-1.2.0-through-1.5.7-13-out-of-bounds-read-via-zstddictcompress"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "zstd-jni 1.2.0 through 1.5.7-13 Out-of-Bounds Read via ZstdDictCompress",
      "x_generator": {
        "engine": "vulncheck-endgame"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-87795",
    "datePublished": "2026-09-09T10:07:28.656Z",
    "dateReserved": "2026-09-09T09:37:58.558Z",
    "dateUpdated": "2026-09-09T10:07:28.656Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-87795",
      "date": "2026-09-10",
      "epss": "0.00344",
      "percentile": "0.27483"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-87795\",\"sourceIdentifier\":\"disclosure@vulncheck.com\",\"published\":\"2026-09-09T10:22:34.557\",\"lastModified\":\"2026-09-09T10:22:34.557\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"zstd-jni versions before 1.5.7-14 fail to validate offset and length parameters in the ZstdDictCompress constructor, allowing out-of-bounds memory reads. Attackers can supply untrusted offset or length values to read native heap memory into the compression dictionary, typically causing JVM crashes.\"}],\"affected\":[{\"source\":\"disclosure@vulncheck.com\",\"affectedData\":[{\"vendor\":\"luben\",\"product\":\"zstd-jni\",\"defaultStatus\":\"unaffected\",\"collectionURL\":\"https://repo1.maven.org/maven2/com/github/luben/zstd-jni/\",\"repo\":\"https://github.com/luben/zstd-jni\",\"packageURL\":\"pkg:maven/com.github.luben/zstd-jni\",\"versions\":[{\"version\":\"1.2.0\",\"lessThan\":\"1.5.7-14\",\"versionType\":\"custom\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"disclosure@vulncheck.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/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\",\"baseScore\":8.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"NONE\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"vulnConfidentialityImpact\":\"LOW\",\"vulnIntegrityImpact\":\"NONE\",\"vulnAvailabilityImpact\":\"HIGH\",\"subConfidentialityImpact\":\"NONE\",\"subIntegrityImpact\":\"NONE\",\"subAvailabilityImpact\":\"NONE\",\"exploitMaturity\":\"NOT_DEFINED\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}],\"cvssMetricV31\":[{\"source\":\"disclosure@vulncheck.com\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H\",\"baseScore\":8.2,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":4.2}]},\"weaknesses\":[{\"source\":\"disclosure@vulncheck.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-125\"}]}],\"references\":[{\"url\":\"https://github.com/luben/zstd-jni\",\"source\":\"disclosure@vulncheck.com\"},{\"url\":\"https://github.com/luben/zstd-jni/blob/v1.5.7-13/src/main/java/com/github/luben/zstd/ZstdDictCompress.java\",\"source\":\"disclosure@vulncheck.com\"},{\"url\":\"https://github.com/luben/zstd-jni/blob/v1.5.7-13/src/main/native/jni_fast_zstd.c\",\"source\":\"disclosure@vulncheck.com\"},{\"url\":\"https://github.com/luben/zstd-jni/commit/0d64de4dee6606ff506be36c7f2e714ad0c80fdb\",\"source\":\"disclosure@vulncheck.com\"},{\"url\":\"https://github.com/luben/zstd-jni/commit/1c4e5a6c3ce8458095225d987d669e6a0937734a\",\"source\":\"disclosure@vulncheck.com\"},{\"url\":\"https://github.com/luben/zstd-jni/releases/tag/v1.5.7-14\",\"source\":\"disclosure@vulncheck.com\"},{\"url\":\"https://github.com/luben/zstd-jni/security/advisories/GHSA-ff36-7w3w-g8rm\",\"source\":\"disclosure@vulncheck.com\"},{\"url\":\"https://www.vulncheck.com/advisories/zstd-jni-1.2.0-through-1.5.7-13-out-of-bounds-read-via-zstddictcompress\",\"source\":\"disclosure@vulncheck.com\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2026-09-10T10:13:29+00:00",
      "cve": "CVE-2026-87795",
      "id": "CVE-2026-87795",
      "initial_release_date": "2026-09-09T10:07:28.656000+00:00",
      "product_status:known_affected": "29",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "com.github.luben/zstd-jni: zstd-jni: Out-of-bounds read in ZstdDictCompress constructor leads to denial of service",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-87795.json",
      "version": "3"
    }
  }
}

FKIE_CVE-2026-87795

Vulnerability from fkie_nvd - Published: 2026-09-09 10:22 - Updated: 2026-09-09 10:22

Severity

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

Summary

References

	URL	Tags
	disclosure@vulncheck.com	https://github.com/luben/zstd-jni
	disclosure@vulncheck.com	https://github.com/luben/zstd-jni/blob/v1.5.7-13/src/main/java/com/github/luben/zstd/ZstdDictCompress.java
	disclosure@vulncheck.com	https://github.com/luben/zstd-jni/blob/v1.5.7-13/src/main/native/jni_fast_zstd.c
	disclosure@vulncheck.com	https://github.com/luben/zstd-jni/commit/0d64de4dee6606ff506be36c7f2e714ad0c80fdb
	disclosure@vulncheck.com	https://github.com/luben/zstd-jni/commit/1c4e5a6c3ce8458095225d987d669e6a0937734a
	disclosure@vulncheck.com	https://github.com/luben/zstd-jni/releases/tag/v1.5.7-14
	disclosure@vulncheck.com	https://github.com/luben/zstd-jni/security/advisories/GHSA-ff36-7w3w-g8rm
	disclosure@vulncheck.com	https://www.vulncheck.com/advisories/zstd-jni-1.2.0-through-1.5.7-13-out-of-bounds-read-via-zstddictcompress

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://repo1.maven.org/maven2/com/github/luben/zstd-jni/",
          "defaultStatus": "unaffected",
          "packageURL": "pkg:maven/com.github.luben/zstd-jni",
          "product": "zstd-jni",
          "repo": "https://github.com/luben/zstd-jni",
          "vendor": "luben",
          "versions": [
            {
              "lessThan": "1.5.7-14",
              "status": "affected",
              "version": "1.2.0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "disclosure@vulncheck.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "zstd-jni versions before 1.5.7-14 fail to validate offset and length parameters in the ZstdDictCompress constructor, allowing out-of-bounds memory reads. Attackers can supply untrusted offset or length values to read native heap memory into the compression dictionary, typically causing JVM crashes."
    }
  ],
  "id": "CVE-2026-87795",
  "lastModified": "2026-09-09T10:22:34.557",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.2,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 4.2,
        "source": "disclosure@vulncheck.com",
        "type": "Primary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "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": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/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": "HIGH",
          "vulnConfidentialityImpact": "LOW",
          "vulnIntegrityImpact": "NONE",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "disclosure@vulncheck.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-09-09T10:22:34.557",
  "references": [
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/luben/zstd-jni"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/luben/zstd-jni/blob/v1.5.7-13/src/main/java/com/github/luben/zstd/ZstdDictCompress.java"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/luben/zstd-jni/blob/v1.5.7-13/src/main/native/jni_fast_zstd.c"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/luben/zstd-jni/commit/0d64de4dee6606ff506be36c7f2e714ad0c80fdb"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/luben/zstd-jni/commit/1c4e5a6c3ce8458095225d987d669e6a0937734a"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/luben/zstd-jni/releases/tag/v1.5.7-14"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/luben/zstd-jni/security/advisories/GHSA-ff36-7w3w-g8rm"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://www.vulncheck.com/advisories/zstd-jni-1.2.0-through-1.5.7-13-out-of-bounds-read-via-zstddictcompress"
    }
  ],
  "sourceIdentifier": "disclosure@vulncheck.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ],
      "source": "disclosure@vulncheck.com",
      "type": "Primary"
    }
  ]
}

GHSA-VC57-7FRC-7VQX

Vulnerability from github – Published: 2026-09-09 12:32 – Updated: 2026-09-09 12:32

Details

Severity

8.2 (High)


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

8.8 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-87795"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-125"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-09T10:22:34Z",
    "severity": "HIGH"
  },
  "details": "zstd-jni versions before 1.5.7-14 fail to validate offset and length parameters in the ZstdDictCompress constructor, allowing out-of-bounds memory reads. Attackers can supply untrusted offset or length values to read native heap memory into the compression dictionary, typically causing JVM crashes.",
  "id": "GHSA-vc57-7frc-7vqx",
  "modified": "2026-09-09T12:32:12Z",
  "published": "2026-09-09T12:32:11Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/luben/zstd-jni/security/advisories/GHSA-ff36-7w3w-g8rm"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-87795"
    },
    {
      "type": "WEB",
      "url": "https://github.com/luben/zstd-jni/commit/0d64de4dee6606ff506be36c7f2e714ad0c80fdb"
    },
    {
      "type": "WEB",
      "url": "https://github.com/luben/zstd-jni/commit/1c4e5a6c3ce8458095225d987d669e6a0937734a"
    },
    {
      "type": "WEB",
      "url": "https://github.com/luben/zstd-jni"
    },
    {
      "type": "WEB",
      "url": "https://github.com/luben/zstd-jni/blob/v1.5.7-13/src/main/java/com/github/luben/zstd/ZstdDictCompress.java"
    },
    {
      "type": "WEB",
      "url": "https://github.com/luben/zstd-jni/blob/v1.5.7-13/src/main/native/jni_fast_zstd.c"
    },
    {
      "type": "WEB",
      "url": "https://github.com/luben/zstd-jni/releases/tag/v1.5.7-14"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/zstd-jni-1.2.0-through-1.5.7-13-out-of-bounds-read-via-zstddictcompress"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/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",
      "type": "CVSS_V4"
    }
  ]
}

ubuntu-cve-2026-87795

Vulnerability from osv_ubuntu

Published

2026-09-10 00:00

Modified

2026-09-10 00:00

Summary

Details

(zstd-jni versions before 1.5.7-14 fail to validate offset and length p ...)

Severity

8.2 (High)


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

8.8 (High)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-87795	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-87795	REPORT
	https://github.com/luben/zstd-jni/security/adviso…	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libzstd-jni-java",
            "binary_version": "1.5.2-5+ds-3build1"
          },
          {
            "binary_name": "libzstd-jni1",
            "binary_version": "1.5.2-5+ds-3build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "zstd-jni-java",
        "purl": "pkg:deb/ubuntu/zstd-jni-java@1.5.2-5+ds-3build1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.5.2-5+ds-3",
        "1.5.2-5+ds-3build1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libzstd-jni-java",
            "binary_version": "1.5.2-5+ds-8"
          },
          {
            "binary_name": "libzstd-jni1",
            "binary_version": "1.5.2-5+ds-8"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "zstd-jni-java",
        "purl": "pkg:deb/ubuntu/zstd-jni-java@1.5.2-5+ds-8?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.5.2-5+ds-7",
        "1.5.2-5+ds-7build1",
        "1.5.2-5+ds-7ubuntu1",
        "1.5.2-5+ds-8"
      ]
    }
  ],
  "aliases": [],
  "details": "(zstd-jni versions before 1.5.7-14 fail to validate offset and length p ...)",
  "id": "UBUNTU-CVE-2026-87795",
  "modified": "2026-09-10T00:00:00Z",
  "published": "2026-09-10T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-87795"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-87795"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/luben/zstd-jni/security/advisories/GHSA-ff36-7w3w-g8rm"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-87795"
  ]
}

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-2026-87795 (GCVE-0-2026-87795)

FKIE_CVE-2026-87795

GHSA-VC57-7FRC-7VQX

ubuntu-cve-2026-87795

Vulnerability from osv_ubuntu

Tags

Sightings

Nomenclature