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USN-7892-1 Not scored

h2o vulnerability

It was discovered that H2O exhibited poor server resource management in its HTTP/2 protocol. An attacker could possibly use this issue to cause H2O to crash, resulting in a denial of service.

Exploit probability Not scored
Published November 26, 2025
Required by Not available
Last source change April 27, 2026

02 / AFFECTED SOFTWARE

Affected packages

Ubuntu:Pro:20.04:LTS h2o

2 explicit affected versions

Ubuntu:Pro:22.04:LTS h2o

4 explicit affected versions

03 / CONNECTIONS

Connected vulnerabilities

04 / EVIDENCE

Source records

Open Source Vulnerabilities USN-7892-1

It was discovered that H2O exhibited poor server resource management in its HTTP/2 protocol. An attacker could possibly use this issue to cause H2O to crash, resulting in a denial of service.

View original source

05 / REFERENCES

Further evidence