Security update for libpng16

{
  "id": "c16fd616a2e3fb55f7fea1abbce5f3a9ae713e3bfead23020797eeaba18e3f33",
  "url": "https://osv.dev/vulnerability/SUSE-SU-2026%3A4801-1",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Security update for libpng16",
    "summary": "This update for libpng16 fixes the following issues: - CVE-2026-46675: Use-after-free of zlib input in `png_read_end` after incomplete zTXt, iTXt or iCCP decompression (bsc#1283183). Changes for libpng16: - version update to 1.6.59 (jsc#PED-16190): * Fixed a regression introduced in version 1.6.47 that caused libpng to reject hIST chunks in their correct position, after PLTE. * Prevented a double free of `png_struct` members after an allocation failure. * Applied fixes and updates to the CMake build. * Adopted the REUSE Specification for licensing the CI files.",
    "evidence": "osv:SUSE-SU-2026:4801-1",
    "products": [
      {
        "name": {
          "value": "libpng16",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.6.59-15.27.1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "SUSE-SU-2026:4801-1",
      "aliases": [
        "SUSE-SU-2026:4801-1"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.6.59-15.27.1"
                }
              ]
            }
          ],
          "package": {
            "name": "libpng16",
            "purl": "pkg:rpm/suse/libpng16&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5",
            "ecosystem": "SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5"
          },
          "database_specific": {
            "source": "https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:4801-1.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "libpng16-16": "1.6.59-15.27.1",
                "libpng16-devel": "1.6.59-15.27.1",
                "libpng16-16-32bit": "1.6.59-15.27.1",
                "libpng16-compat-devel": "1.6.59-15.27.1"
              }
            ]
          }
        }
      ],
      "modified": "2026-10-21T20:02:15.442727508Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-46675"
      ],
      "references": [
        "https://www.suse.com/support/update/announcement/2026/suse-su-20264801-1/",
        "https://bugzilla.suse.com/1283183",
        "https://www.suse.com/security/cve/CVE-2026-46675"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-46675",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 399328,
  "published_at": "2026-10-21T07:57:24+00:00"
}