Upstream information
Description
quic-go is an implementation of the QUIC protocol in Go. Prior to version 0.59.1, an attacker can cause excessive memory allocation in quic-go's HTTP/3 client and server implementations by sending a QPACK-encoded HEADERS frame that decodes into a large trailer field section with many unique field names and/or large values. The implementation builds an `http.Header` for the corresponding `http.Request` or `http.Response`, while only enforcing limits on the size of the QPACK-compressed HEADERS frame, not on the decoded field section. This can lead to memory exhaustion. This is very similar to CVE-2025-64702. The difference is that this issue uses HTTP trailers, rather than HTTP headers, as the attack vector. A misbehaving or malicious peer can cause a denial-of-service (DoS) attack against quic-go's HTTP/3 servers or clients by triggering excessive memory allocation, potentially leading to crashes or resource exhaustion. This affects both servers and clients due to symmetric header construction. Version 0.59.1 enforces RFC 9114 decoded field section size limits for trailers as well. It incrementally decodes QPACK entries and checks the field section size after each entry, aborting the stream if an entry causes the limit to be exceeded.SUSE information
Overall state of this security issue: Pending
This issue is currently rated as having moderate severity.
| CVSS detail | CNA (GitHub) | National Vulnerability Database | SUSE |
|---|---|---|---|
| Base Score | 5.3 | 7.5 | 5.3 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
| Attack Vector | Network | Network | Network |
| Attack Complexity | Low | Low | Low |
| Privileges Required | None | None | None |
| User Interaction | None | None | None |
| Scope | Unchanged | Unchanged | Unchanged |
| Confidentiality Impact | None | None | None |
| Integrity Impact | None | None | None |
| Availability Impact | Low | High | Low |
| CVSSv3 Version | 3.1 | 3.1 | 3.1 |
Status of this issue by product and package
Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.
| Product(s) | Source package | State |
|---|---|---|
| Products under general support and receiving all security fixes. | ||
| SUSE Linux Enterprise Module for Package Hub 15 SP7 | golang-github-prometheus-prometheus | Affected |
| SUSE Linux Enterprise Server 16.0 | golang-github-prometheus-prometheus | Affected |
| SUSE Linux Enterprise Server for SAP applications 16.0 | golang-github-prometheus-prometheus | Affected |
| SUSE Manager Client Tools 15 | golang-github-prometheus-prometheus | Affected |
| SUSE Manager Client Tools for SLE 15 | golang-github-prometheus-prometheus | Affected |
| SUSE Multi-Linux Manager Client Tools for SLE 15 | golang-github-prometheus-prometheus | Affected |
| openSUSE Leap 16.0 | golang-github-prometheus-prometheus | Affected |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SUSE Manager Proxy LTS 4.3 | golang-github-prometheus-prometheus | Affected |
| SUSE Manager Proxy Module 4.3 | golang-github-prometheus-prometheus | Affected |
| Products past their end of life and not receiving proactive updates anymore. | ||
| SUSE Enterprise Storage 6 | golang-github-prometheus-prometheus | Affected |
| SUSE Linux Enterprise Module for Package Hub 15 SP5 | golang-github-prometheus-prometheus | Affected |
| SUSE Linux Enterprise Module for Package Hub 15 SP6 | golang-github-prometheus-prometheus | Affected |
| SUSE Manager Proxy Module 4.1 | golang-github-prometheus-prometheus | Affected |
| SUSE Manager Proxy Module 4.2 | golang-github-prometheus-prometheus | Affected |
| openSUSE Leap 15.3 | golang-github-prometheus-prometheus | Affected |
| openSUSE Leap 15.4 | golang-github-prometheus-prometheus | Affected |
| openSUSE Leap 15.5 | golang-github-prometheus-prometheus | Affected |
| openSUSE Leap 15.6 | golang-github-prometheus-prometheus | Affected |
| Products at an unknown state of their lifecycle. | ||
| SUSE Multi Linux Manager Tools SLE-15 | golang-github-prometheus-prometheus | Affected |
| Container Status | ||
| ses/7.1/ceph/prometheus-server ses/7/ceph/prometheus-server suse/multi-linux-manager/5.2/x86_64/monitoring-prometheus | golang-github-prometheus-prometheus | Affected |
SUSE Timeline for this CVE
CVE page created: Fri Jul 10 17:34:30 2026CVE page last modified: Fri Jul 10 17:34:30 2026