OSV-2026-995 Heap-double-free in dxf_entities_read
A heap double-free vulnerability in the LibreDWG library allows attackers to cause denial of service or potentially execute code via crafted DXF files.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is OSV-2026-995?
OSV-2026-995 is an use after free vulnerability in libredwg, published on 29 Jun 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=528859714
Crash type: Heap-double-free
Crash state:
dxf_entities_read
dwg_read_dxf
llvmfuzz.c
Which versions are affected by OSV-2026-995?
1 open source package ship an affected version, including libredwg.
| Package | Affected | Fixed in |
|---|---|---|
libredwg OSS-Fuzz | All versions | None |
How do I fix OSV-2026-995?
No fix has been published for OSV-2026-995 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is OSV-2026-995 being exploited?
There is no known exploitation of OSV-2026-995 in the wild and no public exploit code.