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ghostscript: Fix of 2 CVEs

Type: advisorySources: OSV

- CVE-2026-39919: fix heap buffer overflow in the JPEG 2000 output adapter when components are subsampled below 8 bits per sample - CVE-2026-103226: bound the control stack in the Type 1 to Type 2 font conversion used by pdfwrite - CVE-2025-27830: count every $Blend procedure entry in the length and bound the formatting of its numbers so the serialized procedure cannot overflow its buffer (upstream Bug 706923 and gs_snprintf)

Products
ghostscript, ghostscript-doc, ghostscript-gtk, ghostscript-tools-dvipdf, ghostscript-tools-fonts, ghostscript-tools-printing, ghostscript-x11, libgs, libgs-devel
Affected versions
Not specified
Fixed versions
9.54.0-19.el9_6.tuxcare.els7
CVEs
CVE-2025-27830, CVE-2026-103226, CVE-2026-39919
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 11:55 UTC · Revision 1

Source evidence

ghostscript: Fix of 2 CVEs

core-osv · Original source

Published 6 Oct 2026, 13:42 UTC

- CVE-2026-39919: fix heap buffer overflow in the JPEG 2000 output adapter when components are subsampled below 8 bits per sample - CVE-2026-103226: bound the control stack in the Type 1 to Type 2 font conversion used by pdfwrite - CVE-2025-27830: count every $Blend procedure entry in the length and bound the formatting of its numbers so the serialized procedure cannot overflow its buffer (upstream Bug 706923 and gs_snprintf)

osv:CLSA-2026-1791294114

ghostscript

Fixed versions: 9.54.0-19.el9_6.tuxcare.els7

ghostscript-doc

Fixed versions: 9.54.0-19.el9_6.tuxcare.els7

ghostscript-gtk

Fixed versions: 9.54.0-19.el9_6.tuxcare.els7

ghostscript-tools-dvipdf

Fixed versions: 9.54.0-19.el9_6.tuxcare.els7

ghostscript-tools-fonts

Fixed versions: 9.54.0-19.el9_6.tuxcare.els7

ghostscript-tools-printing

Fixed versions: 9.54.0-19.el9_6.tuxcare.els7

ghostscript-x11

Fixed versions: 9.54.0-19.el9_6.tuxcare.els7

libgs

Fixed versions: 9.54.0-19.el9_6.tuxcare.els7

libgs-devel

Fixed versions: 9.54.0-19.el9_6.tuxcare.els7

Complete source record
{
  "id": "7f1d7b6a00f4209b5a09f13b466c151e7444de11964f8e320fe7cab4441ce89c",
  "url": "https://osv.dev/vulnerability/CLSA-2026-1791294114",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ghostscript: Fix of 2 CVEs",
    "summary": "- CVE-2026-39919: fix heap buffer overflow in the JPEG 2000 output adapter when components are subsampled below 8 bits per sample - CVE-2026-103226: bound the control stack in the Type 1 to Type 2 font conversion used by pdfwrite - CVE-2025-27830: count every $Blend procedure entry in the length and bound the formatting of its numbers so the serialized procedure cannot overflow its buffer (upstream Bug 706923 and gs_snprintf)",
    "evidence": "osv:CLSA-2026-1791294114",
    "products": [
      {
        "name": {
          "value": "ghostscript",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "9.54.0-19.el9_6.tuxcare.els7",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "ghostscript-doc",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "9.54.0-19.el9_6.tuxcare.els7",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "ghostscript-gtk",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "9.54.0-19.el9_6.tuxcare.els7",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "ghostscript-tools-dvipdf",
          "evidence": "/affected/3/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "9.54.0-19.el9_6.tuxcare.els7",
            "evidence": "/affected/3/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "ghostscript-tools-fonts",
          "evidence": "/affected/4/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "9.54.0-19.el9_6.tuxcare.els7",
            "evidence": "/affected/4/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "ghostscript-tools-printing",
          "evidence": "/affected/5/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "9.54.0-19.el9_6.tuxcare.els7",
            "evidence": "/affected/5/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "ghostscript-x11",
          "evidence": "/affected/6/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "9.54.0-19.el9_6.tuxcare.els7",
            "evidence": "/affected/6/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libgs",
          "evidence": "/affected/7/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "9.54.0-19.el9_6.tuxcare.els7",
            "evidence": "/affected/7/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libgs-devel",
          "evidence": "/affected/8/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "9.54.0-19.el9_6.tuxcare.els7",
            "evidence": "/affected/8/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CLSA-2026-1791294114",
      "aliases": [
        "CLSA-2026-1791294114"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "9.54.0-19.el9_6.tuxcare.els7"
                }
              ]
            }
          ],
          "package": {
            "name": "ghostscript",
            "purl": "pkg:rpm/tuxcare/ghostscript?distro=almalinux-9.6",
            "ecosystem": "TuxCare:AlmaLinux:9.6"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1791294114.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "9.54.0-19.el9_6.tuxcare.els7"
                }
              ]
            }
          ],
          "package": {
            "name": "ghostscript-doc",
            "purl": "pkg:rpm/tuxcare/ghostscript-doc?distro=almalinux-9.6",
            "ecosystem": "TuxCare:AlmaLinux:9.6"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1791294114.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "9.54.0-19.el9_6.tuxcare.els7"
                }
              ]
            }
          ],
          "package": {
            "name": "ghostscript-gtk",
            "purl": "pkg:rpm/tuxcare/ghostscript-gtk?distro=almalinux-9.6",
            "ecosystem": "TuxCare:AlmaLinux:9.6"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1791294114.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "9.54.0-19.el9_6.tuxcare.els7"
                }
              ]
            }
          ],
          "package": {
            "name": "ghostscript-tools-dvipdf",
            "purl": "pkg:rpm/tuxcare/ghostscript-tools-dvipdf?distro=almalinux-9.6",
            "ecosystem": "TuxCare:AlmaLinux:9.6"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1791294114.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "9.54.0-19.el9_6.tuxcare.els7"
                }
              ]
            }
          ],
          "package": {
            "name": "ghostscript-tools-fonts",
            "purl": "pkg:rpm/tuxcare/ghostscript-tools-fonts?distro=almalinux-9.6",
            "ecosystem": "TuxCare:AlmaLinux:9.6"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1791294114.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "9.54.0-19.el9_6.tuxcare.els7"
                }
              ]
            }
          ],
          "package": {
            "name": "ghostscript-tools-printing",
            "purl": "pkg:rpm/tuxcare/ghostscript-tools-printing?distro=almalinux-9.6",
            "ecosystem": "TuxCare:AlmaLinux:9.6"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1791294114.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "9.54.0-19.el9_6.tuxcare.els7"
                }
              ]
            }
          ],
          "package": {
            "name": "ghostscript-x11",
            "purl": "pkg:rpm/tuxcare/ghostscript-x11?distro=almalinux-9.6",
            "ecosystem": "TuxCare:AlmaLinux:9.6"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1791294114.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "9.54.0-19.el9_6.tuxcare.els7"
                }
              ]
            }
          ],
          "package": {
            "name": "libgs",
            "purl": "pkg:rpm/tuxcare/libgs?distro=almalinux-9.6",
            "ecosystem": "TuxCare:AlmaLinux:9.6"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1791294114.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "9.54.0-19.el9_6.tuxcare.els7"
                }
              ]
            }
          ],
          "package": {
            "name": "libgs-devel",
            "purl": "pkg:rpm/tuxcare/libgs-devel?distro=almalinux-9.6",
            "ecosystem": "TuxCare:AlmaLinux:9.6"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1791294114.json"
          }
        }
      ],
      "modified": "2026-10-26T09:43:45.632876618Z",
      "provider": "osv",
      "upstream": [
        "CVE-2025-27830",
        "CVE-2026-103226",
        "CVE-2026-39919"
      ],
      "references": [
        "https://errata.tuxcare.com/els_os/tuxcare9.6esu/CLSA-2026-1791294114.html",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-103226",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-39919"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2025-27830",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-103226",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-39919",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 450124,
  "published_at": "2026-10-06T13:42:05+00:00"
}