{
  "cveId": "CVE-2026-22020",
  "url": "https://patchblox.com/security/cve/CVE-2026-22020",
  "summary": "CVE-2026-22020 is fixed in 8 products on 1 platform, first by FEDORA-2026-A109A9AC2C, released May 26, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "libpng: * updated to 1.6.58\n* 1.6.58 is released with a fix for a simple correctness bug (not a security issue) this time: pn...",
  "description": "* updated to 1.6.58\n* 1.6.58 is released with a fix for a simple correctness bug (not a security issue) this time: png_get_PLTE() returns stale palette data when either gamma correction or alpha-compositing is the only transform applied. Like the issues addressed in the previous release, this bug was a regression introduced in the fix for CVE-2026-33416 in 1.6.56.\n* 1.6.57 is released with fixes for the following security vulnerability:\n- CVE-2026-34757 (medium severity): Use-after-free memory bug in the chunk setter API. The hIST variant has existed since version 1.0.9, but the PLTE and tRNS ones are regressions introduced in the fix for CVE-2026-33416 in 1.6.56 (oops).",
  "published": "2026-05-26T05:56:34Z",
  "severity": "moderate",
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "libpng",
      "release": "Fedora 43",
      "fixedVersion": "2:1.6.58-1.fc43",
      "fix": "FEDORA-2026-A109A9AC2C",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-a109a9ac2c",
      "released": "2026-05-26T05:56:34Z"
    },
    {
      "platform": "linux",
      "product": "libpng-debuginfo",
      "release": "Fedora 43",
      "fixedVersion": "2:1.6.58-1.fc43",
      "fix": "FEDORA-2026-A109A9AC2C",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-a109a9ac2c",
      "released": "2026-05-26T05:56:34Z"
    },
    {
      "platform": "linux",
      "product": "libpng-debugsource",
      "release": "Fedora 43",
      "fixedVersion": "2:1.6.58-1.fc43",
      "fix": "FEDORA-2026-A109A9AC2C",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-a109a9ac2c",
      "released": "2026-05-26T05:56:34Z"
    },
    {
      "platform": "linux",
      "product": "libpng-devel",
      "release": "Fedora 43",
      "fixedVersion": "2:1.6.58-1.fc43",
      "fix": "FEDORA-2026-A109A9AC2C",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-a109a9ac2c",
      "released": "2026-05-26T05:56:34Z"
    },
    {
      "platform": "linux",
      "product": "libpng-devel-debuginfo",
      "release": "Fedora 43",
      "fixedVersion": "2:1.6.58-1.fc43",
      "fix": "FEDORA-2026-A109A9AC2C",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-a109a9ac2c",
      "released": "2026-05-26T05:56:34Z"
    },
    {
      "platform": "linux",
      "product": "libpng-static",
      "release": "Fedora 43",
      "fixedVersion": "2:1.6.58-1.fc43",
      "fix": "FEDORA-2026-A109A9AC2C",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-a109a9ac2c",
      "released": "2026-05-26T05:56:34Z"
    },
    {
      "platform": "linux",
      "product": "libpng-tools",
      "release": "Fedora 43",
      "fixedVersion": "2:1.6.58-1.fc43",
      "fix": "FEDORA-2026-A109A9AC2C",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-a109a9ac2c",
      "released": "2026-05-26T05:56:34Z"
    },
    {
      "platform": "linux",
      "product": "libpng-tools-debuginfo",
      "release": "Fedora 43",
      "fixedVersion": "2:1.6.58-1.fc43",
      "fix": "FEDORA-2026-A109A9AC2C",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-a109a9ac2c",
      "released": "2026-05-26T05:56:34Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-10T07:50:38Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}