OSV-2026-548 UNKNOWN in ojph::local::precinct::parse
A crash in the OpenJPH library's precinct parsing function can cause a denial of service when processing malformed input.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is OSV-2026-548?
OSV-2026-548 is a denial of service vulnerability in openjph, published on 9 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=500177411
Crash type: UNKNOWN
Crash state:
ojph::local::precinct::parse
ojph::local::resolution::parse_one_precinct
ojph::local::tile::parse_tile_header
Which versions are affected by OSV-2026-548?
1 open source package ship an affected version, including openjph.
| Package | Affected | Fixed in |
|---|---|---|
openjph OSS-Fuzz | All versions | None |
How do I fix OSV-2026-548?
No fix has been published for OSV-2026-548 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is OSV-2026-548 being exploited?
There is no known exploitation of OSV-2026-548 in the wild and no public exploit code.