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libstb — security advisory

Type: advisorySources: OSVAdvisory ID: UBUNTU-CVE-2026-5313

A vulnerability has been found in Nothings stb up to 2.30. This issue affects the function stbi__gif_load_next in the library stb_image.h of the component GIF Decoder. Such manipulation leads to denial of service. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

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~git20240715.f7f20f39fe4f+ds-1, 0.0~git20241109.5c20573+ds-1, 0.0~git20250907.fede005+ds-1
Fixed versions
Not specified
CVEs
CVE-2026-5313
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 03:08 UTC · Revision 1

Source evidence

UBUNTU-CVE-2026-5313

core-osv · Original source

Published 1 Apr 2026, 22:16 UTC

A vulnerability has been found in Nothings stb up to 2.30. This issue affects the function stbi__gif_load_next in the library stb_image.h of the component GIF Decoder. Such manipulation leads to denial of service. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

osv:UBUNTU-CVE-2026-5313

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

libstb

Fixed versions: Not specified

Complete source record
{
  "id": "fa53bb9bba4feae48a61673a3223be65a7997c42dc81bf8cbae2d726476128e9",
  "url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-5313",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "UBUNTU-CVE-2026-5313",
    "summary": "A vulnerability has been found in Nothings stb up to 2.30. This issue affects the function stbi__gif_load_next in the library stb_image.h of the component GIF Decoder. Such manipulation leads to denial of service. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.",
    "evidence": "osv:UBUNTU-CVE-2026-5313",
    "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~git20240715.f7f20f39fe4f+ds-1",
            "evidence": "/affected/3/versions"
          },
          {
            "value": "0.0~git20241109.5c20573+ds-1",
            "evidence": "/affected/3/versions"
          }
        ]
      },
      {
        "name": {
          "value": "libstb",
          "evidence": "/affected/4/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "0.0~git20250907.fede005+ds-1",
            "evidence": "/affected/4/versions"
          }
        ]
      },
      {
        "name": {
          "value": "libstb",
          "evidence": "/affected/5/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "0.0~git20241109.5c20573+ds-1",
            "evidence": "/affected/5/versions"
          },
          {
            "value": "0.0~git20250907.fede005+ds-1",
            "evidence": "/affected/5/versions"
          }
        ]
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "UBUNTU-CVE-2026-5313",
      "aliases": [
        "UBUNTU-CVE-2026-5313"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L"
        },
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/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-2026-5313.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-2026-5313.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-2026-5313.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=questing",
            "ecosystem": "Ubuntu:25.10"
          },
          "versions": [
            "0.0~git20240715.f7f20f39fe4f+ds-1",
            "0.0~git20241109.5c20573+ds-1"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5313.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "libstb0t64",
                "binary_version": "0.0~git20241109.5c20573+ds-1"
              }
            ]
          }
        },
        {
          "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-2026-5313.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-2026-5313.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "libstb0t64",
                "binary_version": "0.0~git20250907.fede005+ds-1"
              }
            ]
          }
        }
      ],
      "modified": "2026-10-17T13:00:24.622993819Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-5313"
      ],
      "references": [
        "https://ubuntu.com/security/CVE-2026-5313",
        "https://www.cve.org/CVERecord?id=CVE-2026-5313",
        "https://vuldb.com/submit/780462",
        "https://vuldb.com/vuln/354645",
        "https://vuldb.com/vuln/354645/cti"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-5313",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 360506,
  "published_at": "2026-04-01T22:16:00+00:00"
}