CVE-2026-44944 (GCVE-0-2026-44944)

Vulnerability from cvelistv5 – Published: 2026-07-29 13:04 – Updated: 2026-07-29 14:00
VLAI
Title
iscsiuio control-socket authentication bypass in open-iscsi
Summary
An Incorrect Authorization vulnerability in open-iscsi allows unprivilidged local users to use the isscsiuio control socket. This issue affects open-iscsi: from ? through 668ca1df9c9a1e9bdd5c999ae1d67c9c8909237e.
Severity
8.5 (High)
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-29 14:00 UTC
CWE
  • CWE-863 - — Incorrect Authorization
Assigner
suse CNA under the mitre root
CNA scorecard B 78/100 over 101 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
open-iscsi open-iscsi Affected: ? , ≤ 668ca1df9c9a1e9bdd5c999ae1d67c9c8909237e (git)
guessed Create a notification for this product.
Date Public
2026-07-14 11:45
Credits
Keith at Linneman Labs
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-44944",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-29T14:00:44.787848Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-29T14:00:52.512Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageName": "open-iscsi",
          "product": "open-iscsi",
          "vendor": "open-iscsi",
          "versions": [
            {
              "lessThanOrEqual": "668ca1df9c9a1e9bdd5c999ae1d67c9c8909237e",
              "status": "affected",
              "version": "?",
              "versionType": "git"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Keith at Linneman Labs"
        }
      ],
      "datePublic": "2026-07-14T11:45:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cdiv\u003eAn Incorrect Authorization vulnerability in open-iscsi allows\u0026nbsp;\u003cspan\u003eunprivilidged local users to use the isscsiuio control socket.\u003c/span\u003e\u003c/div\u003e\u003cdiv\u003e\u003cspan\u003e\u003cbr\u003e\u003c/span\u003e\u003c/div\u003e\u003cp\u003eThis issue affects open-iscsi: from ? through 668ca1df9c9a1e9bdd5c999ae1d67c9c8909237e.\u003c/p\u003e"
            }
          ],
          "value": "An Incorrect Authorization vulnerability in open-iscsi allows\u00a0unprivilidged local users to use the isscsiuio control socket.\n\n\n\n\n\n\nThis issue affects open-iscsi: from ? through 668ca1df9c9a1e9bdd5c999ae1d67c9c8909237e."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "LOCAL",
            "baseScore": 8.5,
            "baseSeverity": "HIGH",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "LOW",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-863",
              "description": "CWE-863 \u2014 Incorrect Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-29T13:43:51.482Z",
        "orgId": "404e59f5-483d-4b8a-8e7a-e67604dd8afb",
        "shortName": "suse"
      },
      "references": [
        {
          "url": "https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-44944"
        },
        {
          "url": "https://github.com/open-iscsi/open-iscsi/commit/668ca1df9c9a1e9bdd5c999ae1d67c9c8909237e"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "iscsiuio control-socket authentication bypass in open-iscsi",
      "x_generator": {
        "engine": "Vulnogram 1.0.4"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "404e59f5-483d-4b8a-8e7a-e67604dd8afb",
    "assignerShortName": "suse",
    "cveId": "CVE-2026-44944",
    "datePublished": "2026-07-29T13:04:50.575Z",
    "dateReserved": "2026-05-08T12:29:48.968Z",
    "dateUpdated": "2026-07-29T14:00:52.512Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-44944",
      "date": "2026-10-23",
      "epss": "0.00093",
      "percentile": "0.00507"
    },
    "microsoft_vex": {
      "current_release_date": "2026-08-08T01:41:29.000Z",
      "cve": "CVE-2026-44944",
      "id": "msrc_CVE-2026-44944",
      "initial_release_date": "2026-08-07T01:14:38.000Z",
      "product_status:fixed": "1",
      "product_status:known_affected": "1",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "iscsiuio control-socket authentication bypass in open-iscsi",
      "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-44944.json",
      "version": "2"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "packageName": "open-iscsi",
                "product": "open-iscsi",
                "vendor": "open-iscsi",
                "versions": [
                  {
                    "lessThanOrEqual": "668ca1df9c9a1e9bdd5c999ae1d67c9c8909237e",
                    "status": "affected",
                    "version": "?",
                    "versionType": "git"
                  }
                ]
              }
            ],
            "source": "meissner@suse.de"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "An Incorrect Authorization vulnerability in open-iscsi allows\u00a0unprivilidged local users to use the isscsiuio control socket.\n\n\n\n\n\n\nThis issue affects open-iscsi: from ? through 668ca1df9c9a1e9bdd5c999ae1d67c9c8909237e."
          }
        ],
        "id": "CVE-2026-44944",
        "lastModified": "2026-07-30T16:43:03.817",
        "metrics": {
          "cvssMetricV40": [
            {
              "cvssData": {
                "Automatable": "NOT_DEFINED",
                "Recovery": "NOT_DEFINED",
                "Safety": "NOT_DEFINED",
                "attackComplexity": "LOW",
                "attackRequirements": "NONE",
                "attackVector": "LOCAL",
                "availabilityRequirement": "NOT_DEFINED",
                "baseScore": 8.5,
                "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": "LOW",
                "providerUrgency": "NOT_DEFINED",
                "subAvailabilityImpact": "NONE",
                "subConfidentialityImpact": "NONE",
                "subIntegrityImpact": "NONE",
                "userInteraction": "NONE",
                "valueDensity": "NOT_DEFINED",
                "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/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": "HIGH",
                "vulnIntegrityImpact": "HIGH",
                "vulnerabilityResponseEffort": "NOT_DEFINED"
              },
              "source": "meissner@suse.de",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2026-44944",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-29T14:00:44.787848Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2026-07-29T13:18:46.113",
        "references": [
          {
            "source": "meissner@suse.de",
            "url": "https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-44944"
          },
          {
            "source": "meissner@suse.de",
            "url": "https://github.com/open-iscsi/open-iscsi/commit/668ca1df9c9a1e9bdd5c999ae1d67c9c8909237e"
          }
        ],
        "sourceIdentifier": "meissner@suse.de",
        "vulnStatus": "Awaiting Analysis",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-863"
              }
            ],
            "source": "meissner@suse.de",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2026-09-01T14:00:11+00:00",
      "cve": "CVE-2026-44944",
      "id": "CVE-2026-44944",
      "initial_release_date": "2026-07-29T13:04:50.575000+00:00",
      "product_status:fixed": "245",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "open-iscsi: open-iscsi: Authentication bypass in iscsiuio control socket",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44944.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-09-18T00:55:11Z",
      "cve": "CVE-2026-44944",
      "id": "CVE-2026-44944",
      "initial_release_date": "2026-08-13T01:32:23Z",
      "product_status:known_affected": "166",
      "product_status:recommended": "37",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-44944",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-44944.json",
      "version": "10"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-44944",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-07-29T14:00:44.787848Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-07-29T14:00:48.131Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "packageName": "open-iscsi",
              "product": "open-iscsi",
              "vendor": "open-iscsi",
              "versions": [
                {
                  "lessThanOrEqual": "668ca1df9c9a1e9bdd5c999ae1d67c9c8909237e",
                  "status": "affected",
                  "version": "?",
                  "versionType": "git"
                }
              ]
            }
          ],
          "credits": [
            {
              "lang": "en",
              "type": "finder",
              "value": "Keith at Linneman Labs"
            }
          ],
          "datePublic": "2026-07-14T11:45:00.000Z",
          "descriptions": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "\u003cdiv\u003eAn Incorrect Authorization vulnerability in open-iscsi allows\u0026nbsp;\u003cspan\u003eunprivilidged local users to use the isscsiuio control socket.\u003c/span\u003e\u003c/div\u003e\u003cdiv\u003e\u003cspan\u003e\u003cbr\u003e\u003c/span\u003e\u003c/div\u003e\u003cp\u003eThis issue affects open-iscsi: from ? through 668ca1df9c9a1e9bdd5c999ae1d67c9c8909237e.\u003c/p\u003e"
                }
              ],
              "value": "An Incorrect Authorization vulnerability in open-iscsi allows\u00a0unprivilidged local users to use the isscsiuio control socket.\n\n\n\n\n\n\nThis issue affects open-iscsi: from ? through 668ca1df9c9a1e9bdd5c999ae1d67c9c8909237e."
            }
          ],
          "metrics": [
            {
              "cvssV4_0": {
                "Automatable": "NOT_DEFINED",
                "Recovery": "NOT_DEFINED",
                "Safety": "NOT_DEFINED",
                "attackComplexity": "LOW",
                "attackRequirements": "NONE",
                "attackVector": "LOCAL",
                "baseScore": 8.5,
                "baseSeverity": "HIGH",
                "exploitMaturity": "NOT_DEFINED",
                "privilegesRequired": "LOW",
                "providerUrgency": "NOT_DEFINED",
                "subAvailabilityImpact": "NONE",
                "subConfidentialityImpact": "NONE",
                "subIntegrityImpact": "NONE",
                "userInteraction": "NONE",
                "valueDensity": "NOT_DEFINED",
                "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                "version": "4.0",
                "vulnAvailabilityImpact": "HIGH",
                "vulnConfidentialityImpact": "HIGH",
                "vulnIntegrityImpact": "HIGH",
                "vulnerabilityResponseEffort": "NOT_DEFINED"
              },
              "format": "CVSS",
              "scenarios": [
                {
                  "lang": "en",
                  "value": "GENERAL"
                }
              ]
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-863",
                  "description": "CWE-863 \u2014 Incorrect Authorization",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-07-29T13:43:51.482Z",
            "orgId": "404e59f5-483d-4b8a-8e7a-e67604dd8afb",
            "shortName": "suse"
          },
          "references": [
            {
              "url": "https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-44944"
            },
            {
              "url": "https://github.com/open-iscsi/open-iscsi/commit/668ca1df9c9a1e9bdd5c999ae1d67c9c8909237e"
            }
          ],
          "source": {
            "discovery": "UNKNOWN"
          },
          "title": "iscsiuio control-socket authentication bypass in open-iscsi",
          "x_generator": {
            "engine": "Vulnogram 1.0.4"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "404e59f5-483d-4b8a-8e7a-e67604dd8afb",
        "assignerShortName": "suse",
        "cveId": "CVE-2026-44944",
        "datePublished": "2026-07-29T13:04:50.575Z",
        "dateReserved": "2026-05-08T12:29:48.968Z",
        "dateUpdated": "2026-07-29T14:00:52.512Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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

JSON

Loading timeline…




    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.