OSV-2026-512

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Import Source
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/glib/OSV-2026-512.yaml
JSON Data
https://api.osv.dev/v1/vulns/OSV-2026-512
Published
2026-04-03T00:07:59.707776Z
Modified
2026-04-03T00:07:59.708039Z
Summary
Heap-buffer-overflow in g_utf8_get_char
Details

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=498475244

Crash type: Heap-buffer-overflow READ 1
Crash state:
g_utf8_get_char
g_markup_escape_text
fuzz_markup_escape_text.c
References

Affected packages

OSS-Fuzz / glib

Package

Name
glib
Purl
pkg:generic/glib

Affected ranges

Type
GIT
Repo
https://gitlab.gnome.org/GNOME/glib
Events
Introduced
75768ba48243f01e9913b0ba46196c9c0e3c8d9d
Fixed
0ac0a2a417e75cfe9cdba6ce393b890d793b4b95
Fixed
5821ef69f2e351b965226ef9d0d9c74742d44d83

Ecosystem specific 

{
    "severity": "HIGH"
}

Database specific

fixed_range 
"876b9fa5de8ec4726a4e7f133bf355c3d217b450:5821ef69f2e351b965226ef9d0d9c74742d44d83"
source 
"https://github.com/google/oss-fuzz-vulns/blob/main/vulns/glib/OSV-2026-512.yaml"
introduced_range 
"2a3ca7506ac4872a9eb210be00c2dd4386561db2:28070b88d88f5846d6dfa6651e3253e7ff63c9ea"