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CVE-2026-78669

CVE Details

Release Date:2026-10-08
Impact:Important What is this?

Description


A malicious HTTP/2 peer can cause excessive CPU consumption in the client or server by opening a large number of streams and then sending many small SETTINGS frames containing SETTINGS_INITIAL_WINDOW_SIZE values.

See more information about CVE-2026-78669 from MITRE CVE dictionary and NIST NVD


NOTE: The following CVSS metrics and score provided are preliminary and subject to review.


CVSS v3 metrics

Base Score: 7.5
Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Version: 3.1
Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Unchanged
Confidentiality Impact: None
Integrity Impact: None
Availability Impact: High

Errata information


PlatformErrataRelease Date
Oracle Linux version 10 (buildah) ELSA-2026-882622026-10-23
Oracle Linux version 10 (delve) ELSA-2026-955192026-11-05
Oracle Linux version 10 (golang) ELSA-2026-860932026-10-21
Oracle Linux version 10 (golang-github-openprinting-ipp-usb) ELSA-2026-882802026-10-23
Oracle Linux version 10 (grafana) ELSA-2026-897512026-11-02
Oracle Linux version 10 (grafana-pcp) ELSA-2026-883162026-10-22
Oracle Linux version 10 (podman) ELSA-2026-883362026-10-22
Oracle Linux version 10 (yggdrasil) ELSA-2026-911382026-10-28
Oracle Linux version 8 (delve) ELSA-2026-862032026-10-21
Oracle Linux version 8 (golang) ELSA-2026-862032026-10-21
Oracle Linux version 8 (grafana) ELSA-2026-881882026-10-22
Oracle Linux version 8 (grafana-pcp) ELSA-2026-881892026-10-22
Oracle Linux version 9 (golang) ELSA-2026-861962026-10-21
Oracle Linux version 9 (grafana) ELSA-2026-897442026-10-26
Oracle Linux version 9 (grafana-pcp) ELSA-2026-883542026-10-22


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