Vulnerability-Lookup

UBUNTU-CVE-2026-42046 (CVE-2026-42046)

Vulnerability from osv_ubuntu – Published: 2026-05-11 22:22 – Updated: 2026-05-27 13:58 – Source website

Details

libcaca is a colour ASCII art library. In 0.99.beta20 and earlier, an integer overflow vulnerability in libcaca's canvas import functionality allows an attacker to cause a controlled heap out-of-bounds write (heap overflow) by supplying a crafted file in the "caca" format. Depending on the build configuration and memory allocator, this may lead to memory corruption or remote code execution. This is the same vulnerability as CVE-2021-3410 but the fix at that time was not fully correct. Commit fb77acff9ba6bb01d53940da34fb10f20b156a23 fixes this vulnerability.

Severity

7.8 (High)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-42046	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-42046	REPORT
	https://github.com/cacalabs/libcaca/security/advi…	REPORT
	https://ubuntu.com/security/notices/USN-8318-1	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "caca-utils",
            "binary_version": "0.99.beta18-1ubuntu5.1+esm3"
          },
          {
            "binary_name": "libcaca0",
            "binary_version": "0.99.beta18-1ubuntu5.1+esm3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "libcaca",
        "purl": "pkg:deb/ubuntu/libcaca@0.99.beta18-1ubuntu5.1+esm3?arch=source\u0026distro=esm-infra-legacy/trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.99.beta18-1ubuntu2",
        "0.99.beta18-1ubuntu3",
        "0.99.beta18-1ubuntu4",
        "0.99.beta18-1ubuntu5",
        "0.99.beta18-1ubuntu5.1",
        "0.99.beta18-1ubuntu5.1+esm1",
        "0.99.beta18-1ubuntu5.1+esm2",
        "0.99.beta18-1ubuntu5.1+esm3"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "caca-utils",
            "binary_version": "0.99.beta19-2ubuntu0.16.04.2+esm2"
          },
          {
            "binary_name": "libcaca0",
            "binary_version": "0.99.beta19-2ubuntu0.16.04.2+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "libcaca",
        "purl": "pkg:deb/ubuntu/libcaca@0.99.beta19-2ubuntu0.16.04.2+esm2?arch=source\u0026distro=esm-infra/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.99.beta19-2build2~gcc5.1",
        "0.99.beta19-2build2~gcc5.2",
        "0.99.beta19-2ubuntu0.16.04.1",
        "0.99.beta19-2ubuntu0.16.04.2",
        "0.99.beta19-2ubuntu0.16.04.2+esm1",
        "0.99.beta19-2ubuntu0.16.04.2+esm2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "caca-utils",
            "binary_version": "0.99.beta19-2ubuntu0.18.04.3+esm1"
          },
          {
            "binary_name": "libcaca0",
            "binary_version": "0.99.beta19-2ubuntu0.18.04.3+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "libcaca",
        "purl": "pkg:deb/ubuntu/libcaca@0.99.beta19-2ubuntu0.18.04.3+esm1?arch=source\u0026distro=esm-infra/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.99.beta19-2build2~gcc5.2",
        "0.99.beta19-2build2~gcc5.3",
        "0.99.beta19-2ubuntu0.18.04.1",
        "0.99.beta19-2ubuntu0.18.04.2",
        "0.99.beta19-2ubuntu0.18.04.3",
        "0.99.beta19-2ubuntu0.18.04.3+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "caca-utils",
            "binary_version": "0.99.beta19-2.1ubuntu1.20.04.2+esm1"
          },
          {
            "binary_name": "libcaca0",
            "binary_version": "0.99.beta19-2.1ubuntu1.20.04.2+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "libcaca",
        "purl": "pkg:deb/ubuntu/libcaca@0.99.beta19-2.1ubuntu1.20.04.2+esm1?arch=source\u0026distro=esm-infra/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.99.beta19-2.1",
        "0.99.beta19-2.1ubuntu1",
        "0.99.beta19-2.1ubuntu1.20.04.1",
        "0.99.beta19-2.1ubuntu1.20.04.2",
        "0.99.beta19-2.1ubuntu1.20.04.2+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "caca-utils",
            "binary_version": "0.99.beta19-2.2ubuntu4.2"
          },
          {
            "binary_name": "libcaca0",
            "binary_version": "0.99.beta19-2.2ubuntu4.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "libcaca",
        "purl": "pkg:deb/ubuntu/libcaca@0.99.beta19-2.2ubuntu4.2?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.99.beta19-2.2ubuntu4.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.99.beta19-2.2ubuntu2",
        "0.99.beta19-2.2ubuntu3",
        "0.99.beta19-2.2ubuntu4",
        "0.99.beta19-2.2ubuntu4.1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "caca-utils",
            "binary_version": "0.99.beta20-4ubuntu0.2"
          },
          {
            "binary_name": "libcaca0",
            "binary_version": "0.99.beta20-4ubuntu0.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "libcaca",
        "purl": "pkg:deb/ubuntu/libcaca@0.99.beta20-4ubuntu0.2?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.99.beta20-4ubuntu0.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.99.beta20-3build1",
        "0.99.beta20-4",
        "0.99.beta20-4build1",
        "0.99.beta20-4build2",
        "0.99.beta20-4ubuntu0.1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "caca-utils",
            "binary_version": "0.99.beta20-5ubuntu0.25.10.2"
          },
          {
            "binary_name": "libcaca0",
            "binary_version": "0.99.beta20-5ubuntu0.25.10.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "libcaca",
        "purl": "pkg:deb/ubuntu/libcaca@0.99.beta20-5ubuntu0.25.10.2?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.99.beta20-5ubuntu0.25.10.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.99.beta20-5",
        "0.99.beta20-5ubuntu0.25.10.1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "caca-utils",
            "binary_version": "0.99.beta20-6ubuntu2.1"
          },
          {
            "binary_name": "libcaca0",
            "binary_version": "0.99.beta20-6ubuntu2.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "libcaca",
        "purl": "pkg:deb/ubuntu/libcaca@0.99.beta20-6ubuntu2.1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.99.beta20-6ubuntu2.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.99.beta20-5",
        "0.99.beta20-6",
        "0.99.beta20-6ubuntu1",
        "0.99.beta20-6ubuntu2"
      ]
    }
  ],
  "aliases": [],
  "details": "libcaca is a colour ASCII art library. In 0.99.beta20 and earlier, an integer overflow vulnerability in libcaca\u0027s canvas import functionality allows an attacker to cause a controlled heap out-of-bounds write (heap overflow) by supplying a crafted file in the \"caca\" format. Depending on the build configuration and memory allocator, this may lead to memory corruption or remote code execution. This is the same vulnerability as CVE-2021-3410 but the fix at that time was not fully correct. Commit fb77acff9ba6bb01d53940da34fb10f20b156a23 fixes this vulnerability.",
  "id": "UBUNTU-CVE-2026-42046",
  "modified": "2026-05-27T13:58:01Z",
  "published": "2026-05-11T22:22:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-42046"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-42046"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/cacalabs/libcaca/security/advisories/GHSA-4vvg-vrqv-m56w"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8318-1"
    }
  ],
  "related": [
    "USN-8318-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-42046"
  ]
}

CVE-2026-42046 (GCVE-0-2026-42046)

Vulnerability from cvelistv5 – Published: 2026-05-11 21:23 – Updated: 2026-05-12 13:16

Title

libcaca: Heap OOB write in canvas import functions caused by int overflow

Summary

Severity

7.8 (High)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-12 13:16 UTC

CWE

CWE-122 - Heap-based Buffer Overflow
CWE-190 - Integer Overflow or Wraparound
CWE-787 - Out-of-bounds Write

Assigner

GitHub_M mitre root

References

3 references

URL	Tags
https://github.com/cacalabs/libcaca/security/advi…	x_refsource_CONFIRM
https://github.com/cacalabs/libcaca/issues/86	x_refsource_MISC
https://github.com/cacalabs/libcaca/commit/fb77ac…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
cacalabs	libcaca	Affected: <= 0.99.beta20

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-42046",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-12T13:16:06.677985Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-12T13:16:37.138Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/cacalabs/libcaca/security/advisories/GHSA-4vvg-vrqv-m56w"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "libcaca",
          "vendor": "cacalabs",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c= 0.99.beta20"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "libcaca is a colour ASCII art library. In 0.99.beta20 and earlier, an integer overflow vulnerability in libcaca\u0027s canvas import functionality allows an attacker to cause a controlled heap out-of-bounds write (heap overflow) by supplying a crafted file in the \"caca\" format. Depending on the build configuration and memory allocator, this may lead to memory corruption or remote code execution. This is the same vulnerability as CVE-2021-3410 but the fix at that time was not fully correct. Commit fb77acff9ba6bb01d53940da34fb10f20b156a23 fixes this vulnerability."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-122",
              "description": "CWE-122: Heap-based Buffer Overflow",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-190",
              "description": "CWE-190: Integer Overflow or Wraparound",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-787",
              "description": "CWE-787: Out-of-bounds Write",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T21:23:35.259Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/cacalabs/libcaca/security/advisories/GHSA-4vvg-vrqv-m56w",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/cacalabs/libcaca/security/advisories/GHSA-4vvg-vrqv-m56w"
        },
        {
          "name": "https://github.com/cacalabs/libcaca/issues/86",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/cacalabs/libcaca/issues/86"
        },
        {
          "name": "https://github.com/cacalabs/libcaca/commit/fb77acff9ba6bb01d53940da34fb10f20b156a23",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/cacalabs/libcaca/commit/fb77acff9ba6bb01d53940da34fb10f20b156a23"
        }
      ],
      "source": {
        "advisory": "GHSA-4vvg-vrqv-m56w",
        "discovery": "UNKNOWN"
      },
      "title": "libcaca: Heap OOB write in canvas import functions caused by int overflow"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-42046",
    "datePublished": "2026-05-11T21:23:35.259Z",
    "dateReserved": "2026-04-23T16:05:01.709Z",
    "dateUpdated": "2026-05-12T13:16:37.138Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

USN-8318-1 (UBUNTU-CVE-2026-42046)

Vulnerability from osv_ubuntu – Published: 2026-05-27 12:23 – Updated: 2026-05-27 12:23 – Source website

Summary

libcaca vulnerability

Details

It was discovered that libcaca incorrectly handled certain malformed files. An attacker could use this issue to cause libcaca to crash, resulting in a denial of service, or possibly execute arbitrary code.

References

URL

Type

	https://ubuntu.com/security/notices/USN-8318-1	ADVISORY
	https://ubuntu.com/security/CVE-2026-42046	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-42046",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:22.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "caca-utils",
            "binary_version": "0.99.beta19-2.2ubuntu4.2"
          },
          {
            "binary_name": "libcaca0",
            "binary_version": "0.99.beta19-2.2ubuntu4.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "libcaca",
        "purl": "pkg:deb/ubuntu/libcaca@0.99.beta19-2.2ubuntu4.2?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.99.beta19-2.2ubuntu4.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.99.beta19-2.2ubuntu2",
        "0.99.beta19-2.2ubuntu3",
        "0.99.beta19-2.2ubuntu4",
        "0.99.beta19-2.2ubuntu4.1"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-42046",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:24.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "caca-utils",
            "binary_version": "0.99.beta20-4ubuntu0.2"
          },
          {
            "binary_name": "libcaca0",
            "binary_version": "0.99.beta20-4ubuntu0.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "libcaca",
        "purl": "pkg:deb/ubuntu/libcaca@0.99.beta20-4ubuntu0.2?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.99.beta20-4ubuntu0.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.99.beta20-3build1",
        "0.99.beta20-4",
        "0.99.beta20-4build1",
        "0.99.beta20-4build2",
        "0.99.beta20-4ubuntu0.1"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-42046",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:25.10"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "caca-utils",
            "binary_version": "0.99.beta20-5ubuntu0.25.10.2"
          },
          {
            "binary_name": "libcaca0",
            "binary_version": "0.99.beta20-5ubuntu0.25.10.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "libcaca",
        "purl": "pkg:deb/ubuntu/libcaca@0.99.beta20-5ubuntu0.25.10.2?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.99.beta20-5ubuntu0.25.10.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.99.beta20-5",
        "0.99.beta20-5ubuntu0.25.10.1"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-42046",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:26.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "caca-utils",
            "binary_version": "0.99.beta20-6ubuntu2.1"
          },
          {
            "binary_name": "libcaca0",
            "binary_version": "0.99.beta20-6ubuntu2.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "libcaca",
        "purl": "pkg:deb/ubuntu/libcaca@0.99.beta20-6ubuntu2.1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.99.beta20-6ubuntu2.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.99.beta20-5",
        "0.99.beta20-6",
        "0.99.beta20-6ubuntu1",
        "0.99.beta20-6ubuntu2"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that libcaca incorrectly handled certain malformed files.\nAn attacker could use this issue to cause libcaca to crash, resulting in a\ndenial of service, or possibly execute arbitrary code.",
  "id": "USN-8318-1",
  "modified": "2026-05-27T12:23:40Z",
  "published": "2026-05-27T12:23:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8318-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-42046"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "libcaca vulnerability",
  "upstream": [
    "UBUNTU-CVE-2026-42046"
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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

UBUNTU-CVE-2026-42046 (CVE-2026-42046)

CVE-2026-42046 (GCVE-0-2026-42046)

USN-8318-1 (UBUNTU-CVE-2026-42046)

Tags

Sightings

Nomenclature

Related by attack behaviour