OSV-2025-1059 Security exception in com.google.re2j.Machine.add
A security exception in the re2j regex library can cause a crash, leading to denial of service for applications using it.
- 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-2025-1059?
OSV-2025-1059 is a denial of service vulnerability in jsoup, published on 18 Jan 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=476431390
Crash type: Security exception
Crash state:
com.google.re2j.Machine.add
com.google.re2j.Machine$Thread.<init>
com.google.re2j.Machine.alloc
Which versions are affected by OSV-2025-1059?
1 open source package ship an affected version, including jsoup.
| Package | Affected | Fixed in |
|---|---|---|
jsoup OSS-Fuzz | All versions | None |
How do I fix OSV-2025-1059?
No fix has been published for OSV-2025-1059 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-2025-1059 being exploited?
There is no known exploitation of OSV-2025-1059 in the wild and no public exploit code.