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Fencer Vulns
high 7.5

CVE-2025-59530 json

quic-go has Client Crash Due to Premature HANDSHAKE_DONE Frame

published 2025-10-10 12 mo ago modified 2026-10-19 20 d ago also EUVD-2025-33746 , GHSA-47m2-4cr7-mhcw , GO-2025-4017

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 40%
public exploits
0
none known

Summary

quic-go is an implementation of the QUIC protocol in Go. In versions prior to 0.49.0, 0.54.1, and 0.55.0, a misbehaving or malicious server can cause a denial-of-service (DoS) attack on the quic-go client by triggering an assertion failure, leading to a process crash. This requires no authentication and can be exploited during the handshake phase. This was observed in the wild with certain server implementations. quic-go needs to be able to handle misbehaving server implementations, including those that prematurely send a HANDSHAKE_DONE frame. Versions 0.49.0, 0.54.1, and 0.55.0 discard Initial keys when receiving a HANDSHAKE_DONE frame, thereby correctly handling premature HANDSHAKE_DONE frames.

Patch / fix

  • go github.com/quic-go/quic-go 0.49.1, 0.54.1
  • quic-go_project quic-go 0.49.1, 0.54.1
  • quic_project quic 0.49.1, 0.54.1
  • golang-github-lucas-clemente-quic-go Debian 14 0.54.1-1

debian advisories DEBIAN-CVE-2025-59530

  • bindep ansible automation platform inside 2.5, ansible automation platform developer 2.5, ansible automation platform 2.5 2.13.0-1.el8ap
  • bindep ansible automation platform inside 2.5, ansible automation platform developer 2.5, ansible automation platform 2.5 2.13.0-1.el9ap
  • molecule ansible automation platform developer 2.5, ansible automation platform 2.5 25.12.0-1.el8ap
  • molecule ansible automation platform developer 2.5, ansible automation platform 2.5 25.12.0-1.el9ap
  • receptor ansible automation platform inside 2.5, ansible automation platform inside 2.4, ansible automation platform developer 2.5 +3 more 1.6.2-1.el8ap
  • receptor ansible automation platform inside 2.5, ansible automation platform inside 2.4, ansible automation platform developer 2.5 +3 more 1.6.2-1.el9ap
  • receptorctl ansible automation platform inside 2.5, ansible automation platform inside 2.4, ansible automation platform developer 2.5 +3 more 1.6.2-1.el8ap
  • receptorctl ansible automation platform inside 2.5, ansible automation platform inside 2.4, ansible automation platform developer 2.5 +3 more 1.6.2-1.el9ap

red hat advisories RHSA-2025:23069RHSA-2025:21768RHSA-2025:21706

  • govulncheck-vulndb openSUSE Leap 16.0 0.0.20260723T184607-160000.1.1
  • teleport openSUSE Tumbleweed 17.7.10-1.1
  • govulncheck-vulndb openSUSE Tumbleweed 0.0.20251105T184115-1.1

opensuse advisories openSUSE-SU-2026:21483-1openSUSE-SU-2025:15737-1openSUSE-SU-2025:15710-1

  • coredns Azure Linux 3.0 1.11.4-11
  • coredns CBL-Mariner 2.0 1.11.1-24

azure linux advisories AZL-68778AZL-68781

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-59530 updated cvss 5.3

github.com/quic-go/quic-go: quic-go Crash Due to Premature HANDSHAKE_DONE Frame

  • Red Hat OpenShift Service Mesh 2 openshift-service-mesh/grafana-rhel8, openshift-service-mesh/istio-cni-rhel8, openshift-service-mesh/ratelimit-rhel8, openshift-service-mesh/istio-pilot-rhel9, openshift-service-mesh/istio-proxyv2-rhel9, openshift-service-mesh/istio-rhel8-operator, +2 more
    affected: workaround, no fix available
  • Red Hat Advanced Cluster Management for Kubernetes 2 rhacm2/volsync-rhel8
    affected: workaround, no fix planned “Will not fix”
  • Red Hat Advanced Cluster Security 4 advanced-cluster-security/rhacs-main-rhel8, advanced-cluster-security/rhacs-roxctl-rhel8 Red Hat OpenShift Dev Spaces devspaces/traefik-rhel8, devspaces/traefik-rhel9
    affected: workaround, no fix available
  • Red Hat Advanced Cluster Management for Kubernetes 2.13 rhacm2/lighthouse-agent-rhel9 1782924920, rhacm2/lighthouse-coredns-rhel9 1782924937
    fixed: vendor fix RHSA-2026:36873
  • Red Hat Advanced Cluster Management for Kubernetes 2.14 rhacm2 v0.21-1762794425, rhacm2 v0.21-1762794442
    fixed: vendor fix RHSA-2025:21892
  • Red Hat Advanced Cluster Management for Kubernetes 2.15 rhacm2 v0.22-1764857716, rhacm2 v0.22-1764857721
    fixed: vendor fix RHSA-2025:22784
  • Red Hat Ansible Automation Platform 2.4 for RHEL 8 receptor 1.6.2-1.el8ap, receptorctl 1.6.2-1.el8ap Red Hat Ansible Automation Platform 2.4 for RHEL 9 receptor 1.6.2-1.el9ap, receptorctl 1.6.2-1.el9ap
    fixed: vendor fix RHSA-2025:21706
  • Red Hat Ansible Automation Platform 2.5 ansible-automation-platform-25
    fixed: vendor fix RHSA-2025:23131
show 5 more
  • Red Hat Ansible Automation Platform 2.5 for RHEL 8 bindep 2.13.0-1.el8ap, receptor 1.6.2-1.el8ap, molecule 25.12.0-1.el8ap, ansible-sign 0.1.4-1.el8ap, ansible-lint 25.12.0-1.el8ap, ansible-builder 3.1.1-1.el8ap, +21 more Red Hat Ansible Automation Platform 2.5 for RHEL 9 bindep 2.13.0-1.el9ap, receptor 1.6.2-1.el9ap, molecule 25.12.0-1.el9ap, ansible-sign 0.1.4-1.el9ap, ansible-lint 25.12.0-1.el9ap, ansible-builder 3.1.1-1.el9ap, +21 more
    fixed: vendor fix RHSA-2025:23069
  • Red Hat Ansible Automation Platform 2.6 ansible-automation-platform-26
    fixed: vendor fix RHSA-2025:21775
  • Red Hat Ansible Automation Platform 2.6 for RHEL 9 receptor 1.6.2-2.el9ap, receptorctl 1.6.2-2.el9ap
    fixed: vendor fix RHSA-2025:21768
  • Red Hat OpenShift Service Mesh 3 openshift-service-mesh/istio-cni-rhel9, openshift-service-mesh/istio-pilot-rhel9, openshift-service-mesh/istio-proxyv2-rhel9, openshift-service-mesh/istio-rhel9-operator, openshift-service-mesh/istio-must-gather-rhel9, openshift-service-mesh/istio-sail-operator-bundle, +2 more
    not affected: component not present
  • Red Hat Advanced Cluster Management for Kubernetes 2 rhacm2/lighthouse-agent-rhel8, rhacm2/volsync-operator-bundle, rhacm2/lighthouse-coredns-rhel8 Red Hat Advanced Cluster Management for Kubernetes 2.13 rhacm2/subctl-rhel9 1782945263, rhacm2/nettest-rhel9 1782926302, rhacm2/submariner-gateway-rhel9 1782925247, rhacm2/submariner-rhel9-operator 1782933193, rhacm2/submariner-globalnet-rhel9 1782925266, rhacm2/submariner-operator-bundle 1783001304, +1 more Red Hat Advanced Cluster Management for Kubernetes 2.14 rhacm2 v0.21-1762272934, rhacm2 v0.21-1762820727, rhacm2 v0.21-1763479084, rhacm2 v0.21-1763479094, rhacm2 v0.21-1763479111, rhacm2 v0.21-1763479473, +1 more Red Hat Advanced Cluster Management for Kubernetes 2.15 rhacm2 v0.22-1764085083, rhacm2 v0.22-1764681458, rhacm2 v0.22-1764767735, rhacm2 v0.22-1764767754, rhacm2 v0.22-1764767758, rhacm2 v0.22-1764836763, +1 more Red Hat Advanced Cluster Security 4 advanced-cluster-security/rhacs-rhel8-operator, advanced-cluster-security/rhacs-collector-rhel8, advanced-cluster-security/rhacs-operator-bundle, advanced-cluster-security/rhacs-central-db-rhel8, advanced-cluster-security/rhacs-scanner-v4-rhel8, advanced-cluster-security/rhacs-scanner-v4-db-rhel8 Red Hat Ansible Automation Platform 2.4 for RHEL 8 bindep 2.11.0-2.el8ap, molecule 6.0.2-3.el8ap, yamllint 1.35.1-1.el8ap, supervisor 4.2.5-1.el8ap, ansible-sign 0.1.1-2.el8ap, python3.11-rsa 4.9-2.el8ap, +234 more
    +8 more products
    Red Hat Ansible Automation Platform 2.4 for RHEL 9 bindep 2.11.0-2.el9ap, molecule 6.0.2-3.el9ap, yamllint 1.35.1-1.el9ap, supervisor 4.2.5-1.el9ap, ansible-sign 0.1.1-2.el9ap, python3.11-rsa 4.9-2.el9ap, +228 more Red Hat Ansible Automation Platform 2.5 ansible-automation-platform, ansible-automation-platform-25 Red Hat Ansible Automation Platform 2.5 for RHEL 8 receptorctl 1.6.2-1.el8ap, ansible-runner 2.4.2-1.el8ap, automation-controller 4.6.23-1.el8ap, automation-controller-ui 4.6.23-1.el8ap, automation-gateway 2.5.20251210-1.el8ap, python3.11-ansible-runner 2.4.2-1.el8ap, +23 more Red Hat Ansible Automation Platform 2.5 for RHEL 9 receptorctl 1.6.2-1.el9ap, ansible-runner 2.4.2-1.el9ap, automation-controller 4.6.23-1.el9ap, automation-controller-ui 4.6.23-1.el9ap, automation-gateway 2.5.20251210-1.el9ap, python3.11-ansible-runner 2.4.2-1.el9ap, +23 more Red Hat Ansible Automation Platform 2.6 ansible-automation-platform, ansible-automation-platform-26 Red Hat Ansible Automation Platform 2.6 for RHEL 9 ansible-runner 2.4.2-2.el9ap, automation-hub 4.11.3-1.el9ap, ansible-creator 25.8.0-2.el9ap, automation-controller 4.7.5-1.el9ap, python3.11-galaxy-ng 4.11.3-1.el9ap, automation-platform-ui 2.6.3-1.el9ap, +27 more Red Hat Connectivity Link 1 rhcl-1/dns-rhel9-operator, rhcl-1/dns-operator-bundle Red Hat OpenShift Container Platform 4 openshift4/ose-coredns, openshift4/ose-coredns-rhel9
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
12 mo ago

Exploit prediction

0.46% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
go github.com/quic-go/quic-go
<0.49.1
>=0.50.0, <0.54.1
0.49.1
0.54.1

Affected products

  • quic-go quic-go

Classification

Weakness
  • CWE-617 Reachable Assertion
  • CWE-755 Improper Handling of Exceptional Conditions

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.