Vulnerability-Lookup

CVE-2026-91142 (GCVE-0-2026-91142)

Vulnerability from cvelistv5 – Published: 2026-09-18 16:44 – Updated: 2026-10-16 17:43

Title

Cockpit: cockpit: unauthorized modification of login records via integer overflow

Summary

A flaw was found in Cockpit. An authenticated local user with a large user identifier (UID) can cause unauthorized modification and disclosure of login records. On 32-bit systems, an integer overflow during session accounting allows the user's login process to read or overwrite the legacy log entries of other accounts.

Severity

3.6 (Low)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-18 17:09 UTC

CWE

CWE-190 - Integer Overflow or Wraparound

Assigner

redhat CNA under the redhat root

CNA scorecard B 82/100 over 1069 records in the last 180 days details

References

2 references

URL	Tags
https://access.redhat.com/security/cve/CVE-2026-91142	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2479459	issue-trackingx_refsource_REDHAT

Impacted products

5 products

Vendor	Product	Version
Red Hat	Red Hat Enterprise Linux 10	cpe:/o:redhat:enterprise_linux:10
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
Red Hat	Red Hat OpenShift Dev Spaces	cpe:/a:redhat:openshift_devspaces:3

Date Public

2026-09-18 16:27

Credits

This issue was discovered by Found by AISLE in partnership with Red Hat.

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-91142",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-18T17:09:31.218316Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-18T17:09:57.106Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:10"
          ],
          "defaultStatus": "affected",
          "packageName": "cockpit",
          "product": "Red Hat Enterprise Linux 10",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:7"
          ],
          "defaultStatus": "affected",
          "packageName": "cockpit",
          "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": "affected",
          "packageName": "cockpit",
          "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": "cockpit",
          "product": "Red Hat Enterprise Linux 9",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:openshift_devspaces:3"
          ],
          "defaultStatus": "affected",
          "packageName": "devspaces/udi-base-rhel10",
          "product": "Red Hat OpenShift Dev Spaces",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:openshift_devspaces:3"
          ],
          "defaultStatus": "affected",
          "packageName": "devspaces/udi-base-rhel9",
          "product": "Red Hat OpenShift Dev Spaces",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:openshift_devspaces:3"
          ],
          "defaultStatus": "affected",
          "packageName": "devspaces/udi-rhel9",
          "product": "Red Hat OpenShift Dev Spaces",
          "vendor": "Red Hat"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "This issue was discovered by Found by AISLE in partnership with Red Hat."
        }
      ],
      "datePublic": "2026-09-18T16:27:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "A flaw was found in Cockpit. An authenticated local user with a large user identifier (UID) can cause unauthorized modification and disclosure of login records. On 32-bit systems, an integer overflow during session accounting allows the user\u0027s login process to read or overwrite the legacy log entries of other accounts."
        }
      ],
      "metrics": [
        {
          "other": {
            "content": {
              "namespace": "https://access.redhat.com/security/updates/classification/",
              "value": "Low"
            },
            "type": "Red Hat severity rating"
          }
        },
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 3.6,
            "baseSeverity": "LOW",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-190",
              "description": "Integer Overflow or Wraparound",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-16T17:43:50.182Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "tags": [
            "vdb-entry",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/security/cve/CVE-2026-91142"
        },
        {
          "name": "RHBZ#2479459",
          "tags": [
            "issue-tracking",
            "x_refsource_REDHAT"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2479459"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-05-18T03:32:25.000Z",
          "value": "Reported to Red Hat."
        },
        {
          "lang": "en",
          "time": "2026-09-18T16:27:00.000Z",
          "value": "Made public."
        }
      ],
      "title": "Cockpit: cockpit: unauthorized modification of login records via integer overflow",
      "x_generator": {
        "engine": "cvelib 1.8.0"
      },
      "x_redhatCweChain": "CWE-190: Integer Overflow or Wraparound"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2026-91142",
    "datePublished": "2026-09-18T16:44:09.465Z",
    "dateReserved": "2026-09-14T20:35:27.812Z",
    "dateUpdated": "2026-10-16T17:43:50.182Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-91142",
      "date": "2026-10-29",
      "epss": "0.00119",
      "percentile": "0.01774"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/o:redhat:enterprise_linux:10"
                ],
                "defaultStatus": "affected",
                "packageName": "cockpit",
                "product": "Red Hat Enterprise Linux 10",
                "vendor": "Red Hat"
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/o:redhat:enterprise_linux:7"
                ],
                "defaultStatus": "affected",
                "packageName": "cockpit",
                "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": "affected",
                "packageName": "cockpit",
                "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": "cockpit",
                "product": "Red Hat Enterprise Linux 9",
                "vendor": "Red Hat"
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:openshift_devspaces:3"
                ],
                "defaultStatus": "affected",
                "packageName": "devspaces/udi-base-rhel10",
                "product": "Red Hat OpenShift Dev Spaces",
                "vendor": "Red Hat"
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:openshift_devspaces:3"
                ],
                "defaultStatus": "affected",
                "packageName": "devspaces/udi-base-rhel9",
                "product": "Red Hat OpenShift Dev Spaces",
                "vendor": "Red Hat"
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:openshift_devspaces:3"
                ],
                "defaultStatus": "affected",
                "packageName": "devspaces/udi-rhel9",
                "product": "Red Hat OpenShift Dev Spaces",
                "vendor": "Red Hat"
              }
            ],
            "source": "secalert@redhat.com"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "A flaw was found in Cockpit. An authenticated local user with a large user identifier (UID) can cause unauthorized modification and disclosure of login records. On 32-bit systems, an integer overflow during session accounting allows the user\u0027s login process to read or overwrite the legacy log entries of other accounts."
          }
        ],
        "id": "CVE-2026-91142",
        "lastModified": "2026-10-16T18:19:43.197",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "HIGH",
                "attackVector": "LOCAL",
                "availabilityImpact": "NONE",
                "baseScore": 3.6,
                "baseSeverity": "LOW",
                "confidentialityImpact": "LOW",
                "integrityImpact": "LOW",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N",
                "version": "3.1"
              },
              "exploitabilityScore": 1.0,
              "impactScore": 2.5,
              "source": "secalert@redhat.com",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2026-91142",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-18T17:09:31.218316Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2026-09-18T17:17:05.283",
        "references": [
          {
            "source": "secalert@redhat.com",
            "url": "https://access.redhat.com/security/cve/CVE-2026-91142"
          },
          {
            "source": "secalert@redhat.com",
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2479459"
          }
        ],
        "sourceIdentifier": "secalert@redhat.com",
        "vulnStatus": "Awaiting Analysis",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-190"
              }
            ],
            "source": "secalert@redhat.com",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-10-16T17:43:47+00:00",
      "cve": "CVE-2026-91142",
      "id": "CVE-2026-91142",
      "initial_release_date": "2026-09-18T16:27:00+00:00",
      "product_status:known_affected": "35",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "cockpit: Cockpit: Unauthorized modification of login records via integer overflow",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-91142.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-91142",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-09-18T17:09:31.218316Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-09-18T17:09:51.291Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/o:redhat:enterprise_linux:10"
              ],
              "defaultStatus": "affected",
              "packageName": "cockpit",
              "product": "Red Hat Enterprise Linux 10",
              "vendor": "Red Hat"
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/o:redhat:enterprise_linux:7"
              ],
              "defaultStatus": "affected",
              "packageName": "cockpit",
              "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": "affected",
              "packageName": "cockpit",
              "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": "cockpit",
              "product": "Red Hat Enterprise Linux 9",
              "vendor": "Red Hat"
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:openshift_devspaces:3"
              ],
              "defaultStatus": "affected",
              "packageName": "devspaces/udi-base-rhel10",
              "product": "Red Hat OpenShift Dev Spaces",
              "vendor": "Red Hat"
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:openshift_devspaces:3"
              ],
              "defaultStatus": "affected",
              "packageName": "devspaces/udi-base-rhel9",
              "product": "Red Hat OpenShift Dev Spaces",
              "vendor": "Red Hat"
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:openshift_devspaces:3"
              ],
              "defaultStatus": "affected",
              "packageName": "devspaces/udi-rhel9",
              "product": "Red Hat OpenShift Dev Spaces",
              "vendor": "Red Hat"
            }
          ],
          "credits": [
            {
              "lang": "en",
              "value": "This issue was discovered by Found by AISLE in partnership with Red Hat."
            }
          ],
          "datePublic": "2026-09-18T16:27:00.000Z",
          "descriptions": [
            {
              "lang": "en",
              "value": "A flaw was found in Cockpit. An authenticated local user with a large user identifier (UID) can cause unauthorized modification and disclosure of login records. On 32-bit systems, an integer overflow during session accounting allows the user\u0027s login process to read or overwrite the legacy log entries of other accounts."
            }
          ],
          "metrics": [
            {
              "other": {
                "content": {
                  "namespace": "https://access.redhat.com/security/updates/classification/",
                  "value": "Low"
                },
                "type": "Red Hat severity rating"
              }
            },
            {
              "cvssV3_1": {
                "attackComplexity": "HIGH",
                "attackVector": "LOCAL",
                "availabilityImpact": "NONE",
                "baseScore": 3.6,
                "baseSeverity": "LOW",
                "confidentialityImpact": "LOW",
                "integrityImpact": "LOW",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N",
                "version": "3.1"
              },
              "format": "CVSS"
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-190",
                  "description": "Integer Overflow or Wraparound",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-10-16T17:43:50.182Z",
            "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
            "shortName": "redhat"
          },
          "references": [
            {
              "tags": [
                "vdb-entry",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/security/cve/CVE-2026-91142"
            },
            {
              "name": "RHBZ#2479459",
              "tags": [
                "issue-tracking",
                "x_refsource_REDHAT"
              ],
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2479459"
            }
          ],
          "timeline": [
            {
              "lang": "en",
              "time": "2026-05-18T03:32:25.000Z",
              "value": "Reported to Red Hat."
            },
            {
              "lang": "en",
              "time": "2026-09-18T16:27:00.000Z",
              "value": "Made public."
            }
          ],
          "title": "Cockpit: cockpit: unauthorized modification of login records via integer overflow",
          "x_generator": {
            "engine": "cvelib 1.8.0"
          },
          "x_redhatCweChain": "CWE-190: Integer Overflow or Wraparound"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "assignerShortName": "redhat",
        "cveId": "CVE-2026-91142",
        "datePublished": "2026-09-18T16:44:09.465Z",
        "dateReserved": "2026-09-14T20:35:27.812Z",
        "dateUpdated": "2026-10-16T17:43:50.182Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

FKIE_CVE-2026-91142

Vulnerability from fkie_nvd - Published: 2026-09-18 17:17 - Updated: 2026-10-16 18:19

Severity

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

Summary

References

	URL	Tags
	secalert@redhat.com	https://access.redhat.com/security/cve/CVE-2026-91142
	secalert@redhat.com	https://bugzilla.redhat.com/show_bug.cgi?id=2479459

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:10"
          ],
          "defaultStatus": "affected",
          "packageName": "cockpit",
          "product": "Red Hat Enterprise Linux 10",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:7"
          ],
          "defaultStatus": "affected",
          "packageName": "cockpit",
          "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": "affected",
          "packageName": "cockpit",
          "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": "cockpit",
          "product": "Red Hat Enterprise Linux 9",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:openshift_devspaces:3"
          ],
          "defaultStatus": "affected",
          "packageName": "devspaces/udi-base-rhel10",
          "product": "Red Hat OpenShift Dev Spaces",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:openshift_devspaces:3"
          ],
          "defaultStatus": "affected",
          "packageName": "devspaces/udi-base-rhel9",
          "product": "Red Hat OpenShift Dev Spaces",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:openshift_devspaces:3"
          ],
          "defaultStatus": "affected",
          "packageName": "devspaces/udi-rhel9",
          "product": "Red Hat OpenShift Dev Spaces",
          "vendor": "Red Hat"
        }
      ],
      "source": "secalert@redhat.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was found in Cockpit. An authenticated local user with a large user identifier (UID) can cause unauthorized modification and disclosure of login records. On 32-bit systems, an integer overflow during session accounting allows the user\u0027s login process to read or overwrite the legacy log entries of other accounts."
    }
  ],
  "id": "CVE-2026-91142",
  "lastModified": "2026-10-16T18:19:43.197",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "NONE",
          "baseScore": 3.6,
          "baseSeverity": "LOW",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.0,
        "impactScore": 2.5,
        "source": "secalert@redhat.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-91142",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-09-18T17:09:31.218316Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-09-18T17:17:05.283",
  "references": [
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/security/cve/CVE-2026-91142"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2479459"
    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-190"
        }
      ],
      "source": "secalert@redhat.com",
      "type": "Primary"
    }
  ]
}

GHSA-2F43-VJP7-V3QJ

Vulnerability from github – Published: 2026-09-18 18:31 – Updated: 2026-09-18 18:31

Details

A flaw was found in Cockpit. An integer overflow vulnerability in the do_lastlog() function, specifically in the offset calculation for lastlog entries on ILP32 (Integer, Long, Pointer 32-bit) builds, can be exploited. A low-privileged authenticated user with a specially provisioned large User ID (UID) can cause the computed offset to wrap around. This allows the user to perform unauthorized reads and writes to other users' lastlog records, potentially disclosing or altering sensitive login accounting information.

Severity

3.6 (Low)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-91142"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190",
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-18T17:17:05Z",
    "severity": "LOW"
  },
  "details": "A flaw was found in Cockpit. An integer overflow vulnerability in the `do_lastlog()` function, specifically in the offset calculation for `lastlog` entries on ILP32 (Integer, Long, Pointer 32-bit) builds, can be exploited. A low-privileged authenticated user with a specially provisioned large User ID (UID) can cause the computed offset to wrap around. This allows the user to perform unauthorized reads and writes to other users\u0027 `lastlog` records, potentially disclosing or altering sensitive login accounting information.",
  "id": "GHSA-2f43-vjp7-v3qj",
  "modified": "2026-09-18T18:31:43Z",
  "published": "2026-09-18T18:31:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-91142"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2026-91142"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2479459"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

UBUNTU-CVE-2026-91142 (CVE-2026-91142)

Vulnerability from osv_ubuntu – Published: 2026-09-18 17:17 – Updated: 2026-10-28 17:45 – Source website

Details

Severity

3.6 (Low)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-91142	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-91142	REPORT
	https://bugzilla.redhat.com/show_bug.cgi?id=2479459	REPORT
	https://access.redhat.com/security/cve/CVE-2026-91142	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "cockpit",
            "binary_version": "164-1"
          },
          {
            "binary_name": "cockpit-bridge",
            "binary_version": "164-1"
          },
          {
            "binary_name": "cockpit-dashboard",
            "binary_version": "164-1"
          },
          {
            "binary_name": "cockpit-docker",
            "binary_version": "164-1"
          },
          {
            "binary_name": "cockpit-machines",
            "binary_version": "164-1"
          },
          {
            "binary_name": "cockpit-networkmanager",
            "binary_version": "164-1"
          },
          {
            "binary_name": "cockpit-packagekit",
            "binary_version": "164-1"
          },
          {
            "binary_name": "cockpit-storaged",
            "binary_version": "164-1"
          },
          {
            "binary_name": "cockpit-system",
            "binary_version": "164-1"
          },
          {
            "binary_name": "cockpit-tests",
            "binary_version": "164-1"
          },
          {
            "binary_name": "cockpit-ws",
            "binary_version": "164-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "cockpit",
        "purl": "pkg:deb/ubuntu/cockpit@164-1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "151-1",
        "156-1",
        "157-1",
        "158-1",
        "160-1",
        "161-1",
        "162-1",
        "163-1",
        "164-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "cockpit",
            "binary_version": "215-1"
          },
          {
            "binary_name": "cockpit-bridge",
            "binary_version": "215-1"
          },
          {
            "binary_name": "cockpit-dashboard",
            "binary_version": "215-1"
          },
          {
            "binary_name": "cockpit-machines",
            "binary_version": "215-1"
          },
          {
            "binary_name": "cockpit-networkmanager",
            "binary_version": "215-1"
          },
          {
            "binary_name": "cockpit-packagekit",
            "binary_version": "215-1"
          },
          {
            "binary_name": "cockpit-pcp",
            "binary_version": "215-1"
          },
          {
            "binary_name": "cockpit-storaged",
            "binary_version": "215-1"
          },
          {
            "binary_name": "cockpit-system",
            "binary_version": "215-1"
          },
          {
            "binary_name": "cockpit-tests",
            "binary_version": "215-1"
          },
          {
            "binary_name": "cockpit-ws",
            "binary_version": "215-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "cockpit",
        "purl": "pkg:deb/ubuntu/cockpit@215-1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "202.1-1",
        "204-1",
        "206-1",
        "207-1",
        "208-1",
        "210-1",
        "211-1",
        "212-1",
        "213-1",
        "214.1-1",
        "215-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "cockpit",
            "binary_version": "264-1ubuntu0.22.04.1"
          },
          {
            "binary_name": "cockpit-bridge",
            "binary_version": "264-1ubuntu0.22.04.1"
          },
          {
            "binary_name": "cockpit-networkmanager",
            "binary_version": "264-1ubuntu0.22.04.1"
          },
          {
            "binary_name": "cockpit-packagekit",
            "binary_version": "264-1ubuntu0.22.04.1"
          },
          {
            "binary_name": "cockpit-pcp",
            "binary_version": "264-1ubuntu0.22.04.1"
          },
          {
            "binary_name": "cockpit-sosreport",
            "binary_version": "264-1ubuntu0.22.04.1"
          },
          {
            "binary_name": "cockpit-storaged",
            "binary_version": "264-1ubuntu0.22.04.1"
          },
          {
            "binary_name": "cockpit-system",
            "binary_version": "264-1ubuntu0.22.04.1"
          },
          {
            "binary_name": "cockpit-tests",
            "binary_version": "264-1ubuntu0.22.04.1"
          },
          {
            "binary_name": "cockpit-ws",
            "binary_version": "264-1ubuntu0.22.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "cockpit",
        "purl": "pkg:deb/ubuntu/cockpit@264-1ubuntu0.22.04.1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "252-1",
        "256-1",
        "257-1",
        "258-1",
        "259-1",
        "260-1",
        "261-1",
        "262-1",
        "263-1",
        "264-1",
        "264-1ubuntu0.22.04.1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "cockpit",
            "binary_version": "314-1"
          },
          {
            "binary_name": "cockpit-bridge",
            "binary_version": "314-1"
          },
          {
            "binary_name": "cockpit-networkmanager",
            "binary_version": "314-1"
          },
          {
            "binary_name": "cockpit-packagekit",
            "binary_version": "314-1"
          },
          {
            "binary_name": "cockpit-pcp",
            "binary_version": "314-1"
          },
          {
            "binary_name": "cockpit-sosreport",
            "binary_version": "314-1"
          },
          {
            "binary_name": "cockpit-storaged",
            "binary_version": "314-1"
          },
          {
            "binary_name": "cockpit-system",
            "binary_version": "314-1"
          },
          {
            "binary_name": "cockpit-tests",
            "binary_version": "314-1"
          },
          {
            "binary_name": "cockpit-ws",
            "binary_version": "314-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "cockpit",
        "purl": "pkg:deb/ubuntu/cockpit@314-1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "300.1-1",
        "303-1",
        "304-1",
        "305-1",
        "306-1",
        "307-1",
        "308-1",
        "309-1",
        "310.1-1",
        "311-1",
        "312-1build2",
        "314-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "cockpit",
            "binary_version": "367-1"
          },
          {
            "binary_name": "cockpit-bridge",
            "binary_version": "367-1"
          },
          {
            "binary_name": "cockpit-networkmanager",
            "binary_version": "367-1"
          },
          {
            "binary_name": "cockpit-packagekit",
            "binary_version": "367-1"
          },
          {
            "binary_name": "cockpit-sosreport",
            "binary_version": "367-1"
          },
          {
            "binary_name": "cockpit-storaged",
            "binary_version": "367-1"
          },
          {
            "binary_name": "cockpit-system",
            "binary_version": "367-1"
          },
          {
            "binary_name": "cockpit-ws",
            "binary_version": "367-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.10",
        "name": "cockpit",
        "purl": "pkg:deb/ubuntu/cockpit@367-1?arch=source\u0026distro=stonking"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "360-1",
        "362-1",
        "365-1",
        "367-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "cockpit",
            "binary_version": "360-1"
          },
          {
            "binary_name": "cockpit-bridge",
            "binary_version": "360-1"
          },
          {
            "binary_name": "cockpit-networkmanager",
            "binary_version": "360-1"
          },
          {
            "binary_name": "cockpit-packagekit",
            "binary_version": "360-1"
          },
          {
            "binary_name": "cockpit-sosreport",
            "binary_version": "360-1"
          },
          {
            "binary_name": "cockpit-storaged",
            "binary_version": "360-1"
          },
          {
            "binary_name": "cockpit-system",
            "binary_version": "360-1"
          },
          {
            "binary_name": "cockpit-ws",
            "binary_version": "360-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "cockpit",
        "purl": "pkg:deb/ubuntu/cockpit@360-1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "346-1",
        "348-1",
        "350-1",
        "352-1",
        "353.1-1",
        "354-1",
        "355-1",
        "356-1",
        "360-1"
      ]
    }
  ],
  "aliases": [],
  "details": "A flaw was found in Cockpit. An authenticated local user with a large user identifier (UID) can cause unauthorized modification and disclosure of login records. On 32-bit systems, an integer overflow during session accounting allows the user\u0027s login process to read or overwrite the legacy log entries of other accounts.",
  "id": "UBUNTU-CVE-2026-91142",
  "modified": "2026-10-28T17:45:55Z",
  "published": "2026-09-18T17:17:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-91142"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-91142"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2479459"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-91142"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-91142"
  ]
}

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

Order JSON

Publication & reservation Sightings KEV catalogs Other timestamps

Loading timeline…

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-2026-91142 (GCVE-0-2026-91142)

FKIE_CVE-2026-91142

GHSA-2F43-VJP7-V3QJ

UBUNTU-CVE-2026-91142 (CVE-2026-91142)

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour