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libstb — security advisory

Type: advisorySources: OSVAdvisory ID: UBUNTU-CVE-2026-102804

A vulnerability was detected in Nothings stb up to 2c980bb59875b0d32144a71867fbdebb2f77cd20. The impacted element is the function hexwave_init in the library stb_hexwave.h. Performing a manipulation of the argument width/oversample results in integer overflow. Remote exploitation of the attack is possible. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

Products
libstb
Affected versions
0.0~git20190817.1.052dce1-1, 0.0~git20200713.b42009b+ds-1, 0.0~git20210910.af1a5bc+ds-1, 0.0~git20230129.5736b15+ds-1, 0.0~git20230129.5736b15+ds-1.1, 0.0~git20230129.5736b15+ds-1.2, 0.0~git20241109.5c20573+ds-1, 0.0~git20250907.fede005+ds-1
Fixed versions
Not specified
CVEs
CVE-2026-102804
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 02:53 UTC · Revision 1

Source evidence

UBUNTU-CVE-2026-102804

core-osv · Original source

Published 30 Sept 2026, 01:16 UTC

A vulnerability was detected in Nothings stb up to 2c980bb59875b0d32144a71867fbdebb2f77cd20. The impacted element is the function hexwave_init in the library stb_hexwave.h. Performing a manipulation of the argument width/oversample results in integer overflow. Remote exploitation of the attack is possible. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

osv:UBUNTU-CVE-2026-102804

libstb

Fixed versions: Not specified

libstb

Fixed versions: Not specified

libstb

Fixed versions: Not specified

libstb

Fixed versions: Not specified

libstb

Fixed versions: Not specified

Complete source record
{
  "id": "f9baeb6b94b385269d2a7e8b43763b7c786057d73517c384c865e37780328e87",
  "url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-102804",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "UBUNTU-CVE-2026-102804",
    "summary": "A vulnerability was detected in Nothings stb up to 2c980bb59875b0d32144a71867fbdebb2f77cd20. The impacted element is the function hexwave_init in the library stb_hexwave.h. Performing a manipulation of the argument width/oversample results in integer overflow. Remote exploitation of the attack is possible. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.",
    "evidence": "osv:UBUNTU-CVE-2026-102804",
    "products": [
      {
        "name": {
          "value": "libstb",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "0.0~git20190817.1.052dce1-1",
            "evidence": "/affected/0/versions"
          }
        ]
      },
      {
        "name": {
          "value": "libstb",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "0.0~git20200713.b42009b+ds-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "0.0~git20210910.af1a5bc+ds-1",
            "evidence": "/affected/1/versions"
          }
        ]
      },
      {
        "name": {
          "value": "libstb",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "0.0~git20230129.5736b15+ds-1",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "0.0~git20230129.5736b15+ds-1.1",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "0.0~git20230129.5736b15+ds-1.2",
            "evidence": "/affected/2/versions"
          }
        ]
      },
      {
        "name": {
          "value": "libstb",
          "evidence": "/affected/3/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "0.0~git20250907.fede005+ds-1",
            "evidence": "/affected/3/versions"
          }
        ]
      },
      {
        "name": {
          "value": "libstb",
          "evidence": "/affected/4/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "0.0~git20241109.5c20573+ds-1",
            "evidence": "/affected/4/versions"
          },
          {
            "value": "0.0~git20250907.fede005+ds-1",
            "evidence": "/affected/4/versions"
          }
        ]
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "UBUNTU-CVE-2026-102804",
      "aliases": [
        "UBUNTU-CVE-2026-102804"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L"
        },
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P"
        },
        {
          "type": "Ubuntu",
          "score": "medium"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "libstb",
            "purl": "pkg:deb/ubuntu/libstb?arch=source&distro=focal",
            "ecosystem": "Ubuntu:20.04:LTS"
          },
          "versions": [
            "0.0~git20190817.1.052dce1-1"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-102804.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "libstb0",
                "binary_version": "0.0~git20190817.1.052dce1-1"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "libstb",
            "purl": "pkg:deb/ubuntu/libstb?arch=source&distro=jammy",
            "ecosystem": "Ubuntu:22.04:LTS"
          },
          "versions": [
            "0.0~git20200713.b42009b+ds-1",
            "0.0~git20210910.af1a5bc+ds-1"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-102804.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "libstb0",
                "binary_version": "0.0~git20210910.af1a5bc+ds-1"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "libstb",
            "purl": "pkg:deb/ubuntu/libstb?arch=source&distro=noble",
            "ecosystem": "Ubuntu:24.04:LTS"
          },
          "versions": [
            "0.0~git20230129.5736b15+ds-1",
            "0.0~git20230129.5736b15+ds-1.1",
            "0.0~git20230129.5736b15+ds-1.2"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-102804.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "libstb0t64",
                "binary_version": "0.0~git20230129.5736b15+ds-1.2"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "libstb",
            "purl": "pkg:deb/ubuntu/libstb?arch=source&distro=stonking",
            "ecosystem": "Ubuntu:26.10"
          },
          "versions": [
            "0.0~git20250907.fede005+ds-1"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-102804.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "libstb0t64",
                "binary_version": "0.0~git20250907.fede005+ds-1"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "libstb",
            "purl": "pkg:deb/ubuntu/libstb?arch=source&distro=resolute",
            "ecosystem": "Ubuntu:26.04:LTS"
          },
          "versions": [
            "0.0~git20241109.5c20573+ds-1",
            "0.0~git20250907.fede005+ds-1"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-102804.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "libstb0t64",
                "binary_version": "0.0~git20250907.fede005+ds-1"
              }
            ]
          }
        }
      ],
      "modified": "2026-10-17T12:59:46.184517215Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-102804"
      ],
      "references": [
        "https://ubuntu.com/security/CVE-2026-102804",
        "https://www.cve.org/CVERecord?id=CVE-2026-102804",
        "https://github.com/nothings/stb/",
        "https://github.com/nothings/stb/issues/1961",
        "https://github.com/user-attachments/files/31351618/poc_hexwave.c",
        "https://vuldb.com/cve/CVE-2026-102804",
        "https://vuldb.com/submit/944861",
        "https://vuldb.com/vuln/411496",
        "https://vuldb.com/vuln/411496/cti"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-102804",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 359758,
  "published_at": "2026-09-30T01:16:00+00:00"
}