What is CVE-2026-25800?

CVE-2026-25800 is a high-severity vulnerability in Quinn-rs Quinn, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2026-07-23.

How severe is CVE-2026-25800?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Quinn-rs Quinn

CVE-2026-25800

Quinn is a pure-Rust, async-compatible implementation of the IETF QUIC transport protocol. Starting in version 0.1.0 and prior to version 0.11.15, the `Assembler` component that assembles unordered stream fragments into consecutive chunks…

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Quinn-rs Quinn — versions >= 0.1.0, < 0.11.15

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-25800?: CVE-2026-25800 is a high-severity vulnerability in Quinn-rs Quinn, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2026-07-23.
How severe is CVE-2026-25800?: High severity. CVSS v3 base score is 7.5 out of 10.