OSV-2026-357 Heap-buffer-overflow in _cupsRasterAddError
A heap buffer overflow in the CUPS raster library allows attackers to cause denial of service or potentially execute code via crafted raster data.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is OSV-2026-357?
OSV-2026-357 is a memory corruption vulnerability in cups, published on 7 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=489911024
Crash type: Heap-buffer-overflow WRITE 3
Crash state:
_cupsRasterAddError
_cupsRasterExecPS
fuzz_cups.c
Which versions are affected by OSV-2026-357?
1 open source package ship an affected version, including cups.
| Package | Affected | Fixed in |
|---|---|---|
cups OSS-Fuzz | All versions | None |
How do I fix OSV-2026-357?
No fix has been published for OSV-2026-357 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is OSV-2026-357 being exploited?
There is no known exploitation of OSV-2026-357 in the wild and no public exploit code.