PT-2026-27316 · Osgeo · Gdal

Titan Team · Published 2026-03-24 · Updated 2026-04-28 · CVE-2026-4738

Positive Technologies (AI Summary)

CVSS v4.0

9.4

Critical

Base vector

AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/S:P/AU:Y/R:U/V:C/RE:L/U:Amber

Name of the Vulnerable Software and Affected Versions OSGeo gdal versions prior to 3.11.0

Description A flaw exists in OSGeo gdal related to improper restriction of operations within the bounds of a memory buffer. This issue is located in the frmts/zlib/contrib/infback9 modules, specifically within the inftree9.c file. The problem stems from incorrect pointer arithmetic in the bundled zlib library, potentially allowing attackers to corrupt heap memory through malformed compressed data, which could lead to remote code execution.

Recommendations Update to version 3.11.0 or later.

Fix

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

CVE-2026-4738

ECHO-C616-5E6D-4A3E

JLSEC-2026-288

Affected Products

Gdal

References · 11

• https://github.com/OSGeo/gdal/pull/12244 · Patch
• https://cve.org/CVERecord?id=CVE-2026-4738 · Security Note
• https://ubuntu.com/security/CVE-2026-4738 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-4738 · Vendor Advisory
• https://osv.dev/vulnerability/JLSEC-2026-288 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-4738 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2026-4738 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-4738 · Vendor Advisory
• https://twitter.com/CVEarity/status/2036846640649359605 · Twitter Post
• https://twitter.com/0dayPublishing/status/2036286705968320559 · Twitter Post
• https://github.com/advisories/GHSA-hp6p-5qh5-w9fj · Note