godot-security-pocs

Godot security PoCs Reproduction material for security vulnerabilities in Godot Engine, published at each bug's disclosure. One directory per disclosure, named by disclosure date and topic. Index Disclosure| Directory| Bugs ---|---|--- 2026-09-21 — untrusted-file parsers|...

SUSE CVE-2026-91189

The GUIX binary resource loader never checks that a font page's glyph range is well formed. gxpageheaderfirstglyph and gxpageheaderlastglyph are read verbatim from the file and only the upper bound of lastglyph is validated, so a page declaring firstglyph lastglyph makes last - first + 1 underflo...

CVE-2026-91189

The GUIX binary resource loader never checks that a font page's glyph range is well formed. gxpageheaderfirstglyph and gxpageheaderlastglyph are read verbatim from the file and only the upper bound of lastglyph is validated, so a page declaring firstglyph lastglyph makes last - first + 1 underflo...

EUVD-2026-105040

The GUIX binary resource loader never checks that a font page's glyph range is well formed. gxpageheaderfirstglyph and gxpageheaderlastglyph are read verbatim from the file and only the upper bound of lastglyph is validated, so a page declaring firstglyph lastglyph makes last - first + 1 underflo...

CVE-2026-91189 GUIX binary resource loader: unvalidated glyph range causes an integer underflow and a heap out-of-bounds write when loading an untrusted font or theme

The GUIX binary resource loader never checks that a font page's glyph range is well formed. gxpageheaderfirstglyph and gxpageheaderlastglyph are read verbatim from the file and only the upper bound of lastglyph is validated, so a page declaring firstglyph lastglyph makes last - first + 1 underflo...

CVE-2026-91189 GUIX binary resource loader: unvalidated glyph range causes an integer underflow and a heap out-of-bounds write when loading an untrusted font or theme

The GUIX binary resource loader never checks that a font page's glyph range is well formed. gxpageheaderfirstglyph and gxpageheaderlastglyph are read verbatim from the file and only the upper bound of lastglyph is validated, so a page declaring firstglyph lastglyph makes last - first + 1 underflo...

CVE-2026-91189

The GUIX binary resource loader never checks that a font page's glyph range is well formed. "gxpageheaderfirstglyph" and "gxpageheaderlastglyph" are read verbatim from the file and only the upper bound of "lastglyph" is validated, so a page declaring "firstglyph lastglyph" makes "last - first + 1...

CVE-2026-91189

The GUIX binary resource loader is vulnerable to a heap out-of-bounds write when processing untrusted fonts or themes. The root cause is an integer underflow occurring because the loader fails to verify that a font page's glyph range is well-formed; specifically, if first_glyph > last_glyph, t...

CVE-2026-91189 GUIX binary resource loader: unvalidated glyph range causes an integer underflow and a heap out-of-bounds write when loading an untrusted font or theme

The GUIX binary resource loader never checks that a font page's glyph range is well formed. gxpageheaderfirstglyph and gxpageheaderlastglyph are read verbatim from the file and only the upper bound of lastglyph is validated, so a page declaring firstglyph lastglyph makes last - first + 1 underflo...

CVE-2026-92446

The GUIX binary resource loader contains an out-of-bounds read vulnerability within the gx_binres_theme_load() and gx_binres_font_load() functions. The root cause is that these functions accept resources as a bare GX_UBYTE * without a length, and the GX_BINRES_DATA_INFO structure lacks a field to...

CVE-2026-92446 GUIX binary resource loader reads past the end of a resource, because no length for it ever reaches the loader

gxbinresthemeload and gxbinresfontload take the resource as a bare GXUBYTE with no length, and GXBINRESDATAINFO has no field to carry one. Every read is therefore performed at an offset the file itself chose, against a buffer whose extent the loader does not know. A resource that declares more da...

CVE-2026-92446 GUIX binary resource loader reads past the end of a resource, because no length for it ever reaches the loader

gxbinresthemeload and gxbinresfontload take the resource as a bare GXUBYTE with no length, and GXBINRESDATAINFO has no field to carry one. Every read is therefore performed at an offset the file itself chose, against a buffer whose extent the loader does not know. A resource that declares more da...

CVE-2026-92446 GUIX binary resource loader reads past the end of a resource, because no length for it ever reaches the loader

gxbinresthemeload and gxbinresfontload take the resource as a bare GXUBYTE with no length, and GXBINRESDATAINFO has no field to carry one. Every read is therefore performed at an offset the file itself chose, against a buffer whose extent the loader does not know. A resource that declares more da...

CVE-2026-92449

The GUIX binary resource (theme) loader contains a heap out-of-bounds write vulnerability in the _gx_binres_pixelmap_table_load() function. The root cause is the lack of bounds checking on the map_id value read directly from a resource file when indexing the pixelmap table . A crafted theme file ...

CVE-2026-92449 Binary resource loader: unbounded map_id from a theme file causes a heap out-of-bounds write in the GUIX-allocated arena

gxbinrespixelmaptableload in the GUIX binary resource theme loader indexes the pixelmap table with a value read verbatim from the resource file and never bounds it against the table size. A crafted theme drives a write of up to roughly 256 KB past the end of the table. The overflowed buffer is...

CVE-2026-92449 Binary resource loader: unbounded map_id from a theme file causes a heap out-of-bounds write in the GUIX-allocated arena

gxbinrespixelmaptableload in the GUIX binary resource theme loader indexes the pixelmap table with a value read verbatim from the resource file and never bounds it against the table size. A crafted theme drives a write of up to roughly 256 KB past the end of the table. The overflowed buffer is...

CVE-2026-92449 Binary resource loader: unbounded map_id from a theme file causes a heap out-of-bounds write in the GUIX-allocated arena

gxbinrespixelmaptableload in the GUIX binary resource theme loader indexes the pixelmap table with a value read verbatim from the resource file and never bounds it against the table size. A crafted theme drives a write of up to roughly 256 KB past the end of the table. The overflowed buffer is...

Eclipse ThreadX GUIX input validation error vulnerability

A security vulnerability exists in Eclipse ThreadX GUIX versions 6.3.0 through 6.5.1.202602a. This vulnerability stems from the gxbinrespixelmaptableload function within the GUIX binary resource loader; it uses values read directly from resource files to index the pixelmap table. No boundary chec...

PT-2026-118410

The GUIX binary resource loader never checks that a font page's glyph range is well formed. gx page header first glyph and gx page header last glyph are read verbatim from the file and only the upper bound of last glyph is validated, so a page declaring first glyph last glyph makes last - first +...

Eclipse ThreadX GUIX numeric error vulnerability

The Eclipse ThreadX GUIX has a security vulnerability. This vulnerability arises because the GUIX binary resource loader fails to validate the glyph range of font pages. When firstglyph exceeds lastglyph, a count underflow occurs. Additionally, an unchecked multiplication wrapup in buffer size...