CVE-2026-8086

Name	CVE-2026-8086
Description	A vulnerability was identified in OSGeo gdal up to 3.13.0dev-4. This issue affects the function SWnentries of the file frmts/hdf4/hdf-eos/SWapi.c. Such manipulation of the argument DimensionName leads to heap-based buffer overflow. The attack must be carried out locally. The exploit is publicly available and might be used. Upgrading to version 3.12.4RC1 is capable of addressing this issue. The name of the patch is 9491e794f1757f08063ea2f7a274ad2994afa636. It is advisable to upgrade the affected component.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
gdal (PTS)	bullseye (security), bullseye	3.2.2+dfsg-2+deb11u2	vulnerable
	bookworm	3.6.2+dfsg-1	vulnerable
	trixie	3.10.3+dfsg-1	vulnerable
	forky, sid	3.12.3+dfsg-1	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
gdal	source	(unstable)	(unfixed)

Notes

https://github.com/OSGeo/gdal/issues/14356
https://github.com/OSGeo/gdal/pull/14361
https://github.com/OSGeo/gdal/commit/9491e794f1757f08063ea2f7a274ad2994afa636 (v3.12.4RC1)