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UnratedFix available

gimp: Fix of 7 CVEs

Type: advisorySources: OSV

- CVE-2026-18301: validate the PSD channel data allocation with a checked multiplication and fail cleanly instead of overflowing the raw_data buffer - CVE-2026-18302: pass the correct row stride to convert_int2uint() when loading separate-plane TIFFs so the conversion cannot write past the end of the heap-allocated row buffer - CVE-2026-18303: reject indexed TIFFs whose bit depth implies a color map larger than 256 entries instead of overrunning the 768-byte stack cmap - CVE-2026-18304: compute the TIFF upscale tile area as gsize and use a checked allocation so an integer overflow cannot undersize bw_buffer - CVE-2026-18305: use checked multiplications for the TIFF RGBA image allocation instead of an overflowing width times height product - CVE-2026-18306: reject SGI files whose bits-per-pixel is outside the supported range of 1 to 2 and cast the SGI row pointer arithmetic to gsize so an integer overflow cannot lead to an out-of-bounds write - CVE-2026-18307: derive the TIFF bytes-per-pixel consistency check from the source babl format so a samples-per-pixel below the photometric setting cannot undercount the buffer size, and size the contiguous tile buffer with checked multiplications instead of trusting TIFFTileSize()

Products
gimp, gimp-devel, gimp-devel-tools, gimp-libs
Affected versions
Not specified
Fixed versions
2:2.99.8-4.el9_6.2.tuxcare.els19
CVEs
CVE-2026-18301, CVE-2026-18302, CVE-2026-18303, CVE-2026-18304, CVE-2026-18305, CVE-2026-18306, CVE-2026-18307
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 10:54 UTC · Revision 1

Source evidence

gimp: Fix of 7 CVEs

core-osv · Original source

Published 7 Sept 2026, 10:36 UTC

- CVE-2026-18301: validate the PSD channel data allocation with a checked multiplication and fail cleanly instead of overflowing the raw_data buffer - CVE-2026-18302: pass the correct row stride to convert_int2uint() when loading separate-plane TIFFs so the conversion cannot write past the end of the heap-allocated row buffer - CVE-2026-18303: reject indexed TIFFs whose bit depth implies a color map larger than 256 entries instead of overrunning the 768-byte stack cmap - CVE-2026-18304: compute the TIFF upscale tile area as gsize and use a checked allocation so an integer overflow cannot undersize bw_buffer - CVE-2026-18305: use checked multiplications for the TIFF RGBA image allocation instead of an overflowing width times height product - CVE-2026-18306: reject SGI files whose bits-per-pixel is outside the supported range of 1 to 2 and cast the SGI row pointer arithmetic to gsize so an integer overflow cannot lead to an out-of-bounds write - CVE-2026-18307: derive the TIFF bytes-per-pixel consistency check from the source babl format so a samples-per-pixel below the photometric setting cannot undercount the buffer size, and size the contiguous tile buffer with checked multiplications instead of trusting TIFFTileSize()

osv:CLSA-2026-1788777401

gimp

Fixed versions: 2:2.99.8-4.el9_6.2.tuxcare.els19

gimp-devel

Fixed versions: 2:2.99.8-4.el9_6.2.tuxcare.els19

gimp-devel-tools

Fixed versions: 2:2.99.8-4.el9_6.2.tuxcare.els19

gimp-libs

Fixed versions: 2:2.99.8-4.el9_6.2.tuxcare.els19

Complete source record
{
  "id": "92b88c2cd425f9f12bf8e3472c156beb2516f2be0fdbb764381bbf7363eddcc2",
  "url": "https://osv.dev/vulnerability/CLSA-2026-1788777401",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "gimp: Fix of 7 CVEs",
    "summary": "- CVE-2026-18301: validate the PSD channel data allocation with a checked multiplication and fail cleanly instead of overflowing the raw_data buffer - CVE-2026-18302: pass the correct row stride to convert_int2uint() when loading separate-plane TIFFs so the conversion cannot write past the end of the heap-allocated row buffer - CVE-2026-18303: reject indexed TIFFs whose bit depth implies a color map larger than 256 entries instead of overrunning the 768-byte stack cmap - CVE-2026-18304: compute the TIFF upscale tile area as gsize and use a checked allocation so an integer overflow cannot undersize bw_buffer - CVE-2026-18305: use checked multiplications for the TIFF RGBA image allocation instead of an overflowing width times height product - CVE-2026-18306: reject SGI files whose bits-per-pixel is outside the supported range of 1 to 2 and cast the SGI row pointer arithmetic to gsize so an integer overflow cannot lead to an out-of-bounds write - CVE-2026-18307: derive the TIFF bytes-per-pixel consistency check from the source babl format so a samples-per-pixel below the photometric setting cannot undercount the buffer size, and size the contiguous tile buffer with checked multiplications instead of trusting TIFFTileSize()",
    "evidence": "osv:CLSA-2026-1788777401",
    "products": [
      {
        "name": {
          "value": "gimp",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2:2.99.8-4.el9_6.2.tuxcare.els19",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "gimp-devel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2:2.99.8-4.el9_6.2.tuxcare.els19",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "gimp-devel-tools",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2:2.99.8-4.el9_6.2.tuxcare.els19",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "gimp-libs",
          "evidence": "/affected/3/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2:2.99.8-4.el9_6.2.tuxcare.els19",
            "evidence": "/affected/3/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CLSA-2026-1788777401",
      "aliases": [
        "CLSA-2026-1788777401"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2:2.99.8-4.el9_6.2.tuxcare.els19"
                }
              ]
            }
          ],
          "package": {
            "name": "gimp",
            "purl": "pkg:rpm/tuxcare/gimp?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-2026-1788777401.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2:2.99.8-4.el9_6.2.tuxcare.els19"
                }
              ]
            }
          ],
          "package": {
            "name": "gimp-devel",
            "purl": "pkg:rpm/tuxcare/gimp-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-2026-1788777401.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2:2.99.8-4.el9_6.2.tuxcare.els19"
                }
              ]
            }
          ],
          "package": {
            "name": "gimp-devel-tools",
            "purl": "pkg:rpm/tuxcare/gimp-devel-tools?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-2026-1788777401.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2:2.99.8-4.el9_6.2.tuxcare.els19"
                }
              ]
            }
          ],
          "package": {
            "name": "gimp-libs",
            "purl": "pkg:rpm/tuxcare/gimp-libs?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-2026-1788777401.json"
          }
        }
      ],
      "modified": "2026-10-26T09:31:32.879360228Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-18301",
        "CVE-2026-18302",
        "CVE-2026-18303",
        "CVE-2026-18304",
        "CVE-2026-18305",
        "CVE-2026-18306",
        "CVE-2026-18307"
      ],
      "references": [
        "https://errata.tuxcare.com/els_os/tuxcare9.6esu/CLSA-2026-1788777401.html",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-18301",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-18302",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-18303",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-18304",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-18305",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-18306",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-18307"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-18301",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-18302",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-18303",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-18304",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-18305",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-18306",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-18307",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 447748,
  "published_at": "2026-09-07T10:36:58+00:00"
}