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CriticalFix available

GDAL Bundled zlib (inftree9.c) Pointer Offset Optimization Undefined Behavior Allows Heap Corruption or Remote Code Execution

Type: advisorySource: OSV1 source record

Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in OSGeo gdal (frmts/zlib/contrib/infback9 modules). This vulnerability is associated with program files inftree9.C‎. This issue affects gdal: before 3.11.0.

Announced Group revision 1
Original source ↗

BIT-gdal-2026-4738

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:BIT-gdal-2026-4738

gdal

Source reference: /affected/0/package/name

Affected versions
Not stated in this record
Fixed versions
3.11.0

Source reference: /affected/0/ranges

Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "SEMVER",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "3.11.0"
          }
        ]
      }
    ],
    "package": {
      "name": "gdal",
      "purl": "pkg:bitnami/gdal",
      "ecosystem": "Bitnami"
    },
    "severity": [
      {
        "type": "CVSS_V4",
        "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:P/AU:Y/R:U/V:C/RE:L/U:Amber"
      }
    ],
    "database_specific": {
      "source": "https://github.com/bitnami/vulndb/tree/main/data/gdal/BIT-gdal-2026-4738.json"
    }
  }
]
Related CVEs
CVE-2026-4738

Source reference: /aliases

Publisher severity

critical

Source reference: /database_specific/severity

Event
#25944 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement