Vulnerability-Lookup

CVE-2026-78323 (GCVE-0-2026-78323)

Vulnerability from cvelistv5 – Published: 2026-08-24 11:11 – Updated: 2026-08-24 11:50

Title

Jss: jss: jsstrustmanager does not verify nss trust flags on ca certificates

Summary

A flaw was found in JSS (Java Security Services). The JSSTrustManager class does not verify NSS trust flags when validating CA certificates, allowing certificates present in the NSS database without TRUSTED_CA flags to be accepted as trust anchors for TLS connections. In non-default configurations where certificate revocation checking is disabled, this could allow a man-in-the-middle attacker to forge certificates accepted by PKI client connections.

Severity

6.5 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-24 11:50 UTC

CWE

CWE-295 - Improper Certificate Validation

Assigner

redhat CNA under the redhat root

CNA scorecard B 82/100 over 1035 records in the last 180 days details

References

2 references

URL	Tags
https://access.redhat.com/security/cve/CVE-2026-78323	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2521775	issue-trackingx_refsource_REDHAT

Impacted products

7 products

Vendor	Product	Version
Red Hat	Red Hat Certificate System 10	cpe:/a:redhat:certificate_system:10
Red Hat	Red Hat Certificate System 11	cpe:/a:redhat:certificate_system:11
Red Hat	Red Hat Enterprise Linux 10	cpe:/o:redhat:enterprise_linux:10
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9

Date Public

2026-08-24 09:07

Credits

This issue was discovered by Marco Fargetta (Red Hat).

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-78323

Vulnerability from fkie_nvd - Published: 2026-08-24 12:16 - Updated: 2026-10-14 13:10

Severity

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

Summary

References

	URL	Tags
	secalert@redhat.com	https://access.redhat.com/security/cve/CVE-2026-78323
	secalert@redhat.com	https://bugzilla.redhat.com/show_bug.cgi?id=2521775

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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      "affectedData": [
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          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:certificate_system:10"
          ],
          "defaultStatus": "affected",
          "packageName": "redhat-pki:10/jss",
          "product": "Red Hat Certificate System 10",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:certificate_system:11"
          ],
          "defaultStatus": "affected",
          "packageName": "jss",
          "product": "Red Hat Certificate System 11",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:10"
          ],
          "defaultStatus": "affected",
          "packageName": "jss",
          "product": "Red Hat Enterprise Linux 10",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:6"
          ],
          "defaultStatus": "unknown",
          "packageName": "jss",
          "product": "Red Hat Enterprise Linux 6",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:7"
          ],
          "defaultStatus": "unaffected",
          "packageName": "jss",
          "product": "Red Hat Enterprise Linux 7",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:8"
          ],
          "defaultStatus": "unaffected",
          "packageName": "pki-core:10.6/jss",
          "product": "Red Hat Enterprise Linux 8",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:9"
          ],
          "defaultStatus": "affected",
          "packageName": "jss",
          "product": "Red Hat Enterprise Linux 9",
          "vendor": "Red Hat"
        }
      ],
      "source": "secalert@redhat.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was found in JSS (Java Security Services). The JSSTrustManager class does not verify NSS trust flags when validating CA certificates, allowing certificates present in the NSS database without TRUSTED_CA flags to be accepted as trust anchors for TLS connections. In non-default configurations where certificate revocation checking is disabled, this could allow a man-in-the-middle attacker to forge certificates accepted by PKI client connections."
    },
    {
      "lang": "es",
      "value": "Se encontr\u00f3 una vulnerabilidad en JSS (Java Security Services). La clase JSSTrustManager no verifica los indicadores de confianza de NSS al validar certificados de CA, permitiendo que los certificados presentes en la base de datos de NSS sin indicadores TRUSTED_CA sean aceptados como anclas de confianza para conexiones TLS. En configuraciones no predeterminadas donde la verificaci\u00f3n de revocaci\u00f3n de certificados est\u00e1 deshabilitada, esto podr\u00eda permitir a un atacante man-in-the-middle falsificar certificados aceptados por las conexiones de cliente PKI."
    }
  ],
  "id": "CVE-2026-78323",
  "lastModified": "2026-10-14T13:10:00.187",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 4.2,
        "source": "secalert@redhat.com",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-78323",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-24T11:50:20.295602Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-24T12:16:56.250",
  "references": [
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/security/cve/CVE-2026-78323"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2521775"
    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-295"
        }
      ],
      "source": "secalert@redhat.com",
      "type": "Primary"
    }
  ]
}

GHSA-VC6R-2F9F-W5J6

Vulnerability from github – Published: 2026-08-24 12:31 – Updated: 2026-08-24 12:31

Details

Severity

6.5 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-78323"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-295"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-24T12:16:56Z",
    "severity": "MODERATE"
  },
  "details": "A flaw was found in JSS (Java Security Services). The JSSTrustManager class does not verify NSS trust flags when validating CA certificates, allowing certificates present in the NSS database without TRUSTED_CA flags to be accepted as trust anchors for TLS connections. In non-default configurations where certificate revocation checking is disabled, this could allow a man-in-the-middle attacker to forge certificates accepted by PKI client connections.",
  "id": "GHSA-vc6r-2f9f-w5j6",
  "modified": "2026-08-24T12:31:40Z",
  "published": "2026-08-24T12:31:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-78323"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2026-78323"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2521775"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

OESA-2026-4134 (CVE-2026-78323)

Vulnerability from osv_openeuler – Published: 2026-09-30 13:46 – Updated: 2026-09-30 13:46 – Source website

Summary

jss security update

Details

Java Security Services (JSS) is a java native interface which provides a bridge for java-based applications to use native Network Security Services (NSS). This only works with gcj. Other JREs require that JCE providers be signed.

Security Fix(es):

Severity

6.5 (Medium)


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

References

URL

Type

	https://www.openeuler.org/zh/security/security-bu…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-78323	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "jss-5.4.2-3.oe2403sp4.aarch64.rpm",
          "jss-debuginfo-5.4.2-3.oe2403sp4.aarch64.rpm",
          "jss-debugsource-5.4.2-3.oe2403sp4.aarch64.rpm",
          "jss-help-5.4.2-3.oe2403sp4.aarch64.rpm"
        ],
        "src": [
          "jss-5.4.2-3.oe2403sp4.src.rpm"
        ],
        "x86_64": [
          "jss-5.4.2-3.oe2403sp4.x86_64.rpm",
          "jss-debuginfo-5.4.2-3.oe2403sp4.x86_64.rpm",
          "jss-debugsource-5.4.2-3.oe2403sp4.x86_64.rpm",
          "jss-help-5.4.2-3.oe2403sp4.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:24.03-LTS-SP4",
        "name": "jss",
        "purl": "pkg:rpm/openEuler/jss\u0026distro=openEuler-24.03-LTS-SP4"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.4.2-3.oe2403sp4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "Medium"
  },
  "details": "Java Security Services (JSS) is a java native interface which provides a bridge for java-based applications to use native Network Security Services (NSS). This only works with gcj. Other JREs require that JCE providers be signed.\r\n\r\nSecurity Fix(es):\n\nA flaw was found in JSS (Java Security Services). The JSSTrustManager class does not verify NSS trust flags when validating CA certificates, allowing certificates present in the NSS database without TRUSTED_CA flags to be accepted as trust anchors for TLS connections. In non-default configurations where certificate revocation checking is disabled, this could allow a man-in-the-middle attacker to forge certificates accepted by PKI client connections.(CVE-2026-78323)",
  "id": "OESA-2026-4134",
  "modified": "2026-09-30T13:46:55Z",
  "published": "2026-09-30T13:46:55Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4134"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-78323"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "jss security update",
  "upstream": [
    "CVE-2026-78323"
  ]
}

OESA-2026-4135 (CVE-2026-78323)

Vulnerability from osv_openeuler – Published: 2026-09-30 13:46 – Updated: 2026-09-30 13:46 – Source website

Summary

jss security update

Details

Security Fix(es):

Severity

6.5 (Medium)


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

References

URL

Type

	https://www.openeuler.org/zh/security/security-bu…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-78323	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "jss-5.1.0-4.oe2203sp4.aarch64.rpm",
          "jss-debuginfo-5.1.0-4.oe2203sp4.aarch64.rpm",
          "jss-debugsource-5.1.0-4.oe2203sp4.aarch64.rpm",
          "jss-help-5.1.0-4.oe2203sp4.aarch64.rpm"
        ],
        "src": [
          "jss-5.1.0-4.oe2203sp4.src.rpm"
        ],
        "x86_64": [
          "jss-5.1.0-4.oe2203sp4.x86_64.rpm",
          "jss-debuginfo-5.1.0-4.oe2203sp4.x86_64.rpm",
          "jss-debugsource-5.1.0-4.oe2203sp4.x86_64.rpm",
          "jss-help-5.1.0-4.oe2203sp4.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:22.03-LTS-SP4",
        "name": "jss",
        "purl": "pkg:rpm/openEuler/jss\u0026distro=openEuler-22.03-LTS-SP4"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.1.0-4.oe2203sp4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "Medium"
  },
  "details": "Java Security Services (JSS) is a java native interface which provides a bridge for java-based applications to use native Network Security Services (NSS). This only works with gcj. Other JREs require that JCE providers be signed.\r\n\r\nSecurity Fix(es):\n\nA flaw was found in JSS (Java Security Services). The JSSTrustManager class does not verify NSS trust flags when validating CA certificates, allowing certificates present in the NSS database without TRUSTED_CA flags to be accepted as trust anchors for TLS connections. In non-default configurations where certificate revocation checking is disabled, this could allow a man-in-the-middle attacker to forge certificates accepted by PKI client connections.(CVE-2026-78323)",
  "id": "OESA-2026-4135",
  "modified": "2026-09-30T13:46:56Z",
  "published": "2026-09-30T13:46:56Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4135"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-78323"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "jss security update",
  "upstream": [
    "CVE-2026-78323"
  ]
}

OESA-2026-4136 (CVE-2026-78323)

Vulnerability from osv_openeuler – Published: 2026-09-30 13:46 – Updated: 2026-09-30 13:46 – Source website

Summary

jss security update

Details

Security Fix(es):

Severity

6.5 (Medium)


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

References

URL

Type

	https://www.openeuler.org/zh/security/security-bu…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-78323	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "jss-5.4.2-3.oe2403sp1.aarch64.rpm",
          "jss-debuginfo-5.4.2-3.oe2403sp1.aarch64.rpm",
          "jss-debugsource-5.4.2-3.oe2403sp1.aarch64.rpm",
          "jss-help-5.4.2-3.oe2403sp1.aarch64.rpm"
        ],
        "src": [
          "jss-5.4.2-3.oe2403sp1.src.rpm"
        ],
        "x86_64": [
          "jss-5.4.2-3.oe2403sp1.x86_64.rpm",
          "jss-debuginfo-5.4.2-3.oe2403sp1.x86_64.rpm",
          "jss-debugsource-5.4.2-3.oe2403sp1.x86_64.rpm",
          "jss-help-5.4.2-3.oe2403sp1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:24.03-LTS-SP1",
        "name": "jss",
        "purl": "pkg:rpm/openEuler/jss\u0026distro=openEuler-24.03-LTS-SP1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.4.2-3.oe2403sp1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "Medium"
  },
  "details": "Java Security Services (JSS) is a java native interface which provides a bridge for java-based applications to use native Network Security Services (NSS). This only works with gcj. Other JREs require that JCE providers be signed.\r\n\r\nSecurity Fix(es):\n\nA flaw was found in JSS (Java Security Services). The JSSTrustManager class does not verify NSS trust flags when validating CA certificates, allowing certificates present in the NSS database without TRUSTED_CA flags to be accepted as trust anchors for TLS connections. In non-default configurations where certificate revocation checking is disabled, this could allow a man-in-the-middle attacker to forge certificates accepted by PKI client connections.(CVE-2026-78323)",
  "id": "OESA-2026-4136",
  "modified": "2026-09-30T13:46:57Z",
  "published": "2026-09-30T13:46:57Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4136"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-78323"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "jss security update",
  "upstream": [
    "CVE-2026-78323"
  ]
}

OESA-2026-4137 (CVE-2026-78323)

Vulnerability from osv_openeuler – Published: 2026-09-30 13:46 – Updated: 2026-09-30 13:46 – Source website

Summary

jss security update

Details

Security Fix(es):

Severity

6.5 (Medium)


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

References

URL

Type

	https://www.openeuler.org/zh/security/security-bu…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-78323	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "jss-5.4.2-3.oe2403sp3.aarch64.rpm",
          "jss-debuginfo-5.4.2-3.oe2403sp3.aarch64.rpm",
          "jss-debugsource-5.4.2-3.oe2403sp3.aarch64.rpm",
          "jss-help-5.4.2-3.oe2403sp3.aarch64.rpm"
        ],
        "src": [
          "jss-5.4.2-3.oe2403sp3.src.rpm"
        ],
        "x86_64": [
          "jss-5.4.2-3.oe2403sp3.x86_64.rpm",
          "jss-debuginfo-5.4.2-3.oe2403sp3.x86_64.rpm",
          "jss-debugsource-5.4.2-3.oe2403sp3.x86_64.rpm",
          "jss-help-5.4.2-3.oe2403sp3.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:24.03-LTS-SP3",
        "name": "jss",
        "purl": "pkg:rpm/openEuler/jss\u0026distro=openEuler-24.03-LTS-SP3"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.4.2-3.oe2403sp3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "Medium"
  },
  "details": "Java Security Services (JSS) is a java native interface which provides a bridge for java-based applications to use native Network Security Services (NSS). This only works with gcj. Other JREs require that JCE providers be signed.\r\n\r\nSecurity Fix(es):\n\nA flaw was found in JSS (Java Security Services). The JSSTrustManager class does not verify NSS trust flags when validating CA certificates, allowing certificates present in the NSS database without TRUSTED_CA flags to be accepted as trust anchors for TLS connections. In non-default configurations where certificate revocation checking is disabled, this could allow a man-in-the-middle attacker to forge certificates accepted by PKI client connections.(CVE-2026-78323)",
  "id": "OESA-2026-4137",
  "modified": "2026-09-30T13:46:57Z",
  "published": "2026-09-30T13:46:57Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4137"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-78323"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "jss security update",
  "upstream": [
    "CVE-2026-78323"
  ]
}

UBUNTU-CVE-2026-78323 (CVE-2026-78323)

Vulnerability from osv_ubuntu – Published: 2026-08-24 12:16 – Updated: 2026-10-17 09:52 – Source website

Details

Severity

6.5 (Medium)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-78323	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-78323	REPORT
	https://bugzilla.redhat.com/show_bug.cgi?id=2521775	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libjss-java",
            "binary_version": "4.3.1-6"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "jss",
        "purl": "pkg:deb/ubuntu/jss@4.3.1-6?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.3.1-6"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libjss-java",
            "binary_version": "4.4.3-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "jss",
        "purl": "pkg:deb/ubuntu/jss@4.4.3-1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.4.2-1",
        "4.4.2-2",
        "4.4.2-3",
        "4.4.2-6",
        "4.4.3-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libjss-java",
            "binary_version": "4.6.3-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "jss",
        "purl": "pkg:deb/ubuntu/jss@4.6.3-1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.6.1-3",
        "4.6.2-1",
        "4.6.3-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libjss-java",
            "binary_version": "5.0.0-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "jss",
        "purl": "pkg:deb/ubuntu/jss@5.0.0-1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.8.0-2",
        "5.0.0-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libjss-java",
            "binary_version": "5.5.0-1build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "jss",
        "purl": "pkg:deb/ubuntu/jss@5.5.0-1build1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.4.2-1",
        "5.5.0-1",
        "5.5.0-1build1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libjss-java",
            "binary_version": "5.9.0~beta3-3ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.10",
        "name": "jss",
        "purl": "pkg:deb/ubuntu/jss@5.9.0~beta3-3ubuntu1?arch=source\u0026distro=stonking"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.9.0~beta3-3ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libjss-java",
            "binary_version": "5.9.0~beta3-3ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "jss",
        "purl": "pkg:deb/ubuntu/jss@5.9.0~beta3-3ubuntu1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.5.0-1build1",
        "5.9.0~beta3-3ubuntu1"
      ]
    }
  ],
  "aliases": [],
  "details": "A flaw was found in JSS (Java Security Services). The JSSTrustManager class does not verify NSS trust flags when validating CA certificates, allowing certificates present in the NSS database without TRUSTED_CA flags to be accepted as trust anchors for TLS connections. In non-default configurations where certificate revocation checking is disabled, this could allow a man-in-the-middle attacker to forge certificates accepted by PKI client connections.",
  "id": "UBUNTU-CVE-2026-78323",
  "modified": "2026-10-17T09:52:44Z",
  "published": "2026-08-24T12:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-78323"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-78323"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2521775"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-78323"
  ]
}

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

Sightings and recorded dates, grouped by day · UTC

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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-2026-78323 (GCVE-0-2026-78323)

FKIE_CVE-2026-78323

GHSA-VC6R-2F9F-W5J6

OESA-2026-4134 (CVE-2026-78323)

OESA-2026-4135 (CVE-2026-78323)

OESA-2026-4136 (CVE-2026-78323)

OESA-2026-4137 (CVE-2026-78323)

UBUNTU-CVE-2026-78323 (CVE-2026-78323)

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Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour