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Fencer Vulns
high 7.5

CVE-2025-61725 json

Excessive CPU consumption in ParseAddress in net/mail

published 2025-10-29 12 mo ago modified 2026-10-08 32 d ago also BIT-golang-2025-61725 , EUVD-2025-36739 , GO-2025-4006

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 51%
public exploits
0
none known

Summary

The ParseAddress function constructs domain-literal address components through repeated string concatenation. When parsing large domain-literal components, this can cause excessive CPU consumption.

Patch / fix

  • bitnami golang 1.24.8, 1.25.2
  • go stdlib 1.24.8, 1.25.2
  • Go standard library net/mail 1.24.8, 1.25.2
  • golang1.25 hummingbird 1 1.25.9-1.hum1
  • golang1.25-bin hummingbird 1 1.25.9-1.hum1
  • golang1.25-src hummingbird 1 1.25.9-1.hum1
  • golang1.25-misc hummingbird 1 1.25.9-1.hum1
  • golang1.25-tests hummingbird 1 1.25.9-1.hum1
  • golang1.25-shared hummingbird 1 1.25.9-1.hum1
  • golang1.26 hummingbird 1 1.26.2-1.hum1
  • golang1.26-bin hummingbird 1 1.26.2-1.hum1

red hat advisories RHSA-2026:7385RHSA-2026:7291

  • go1.24-openssl SLES for SAP applications 16.0, SLES 16.0 1.24.13-160000.1.1
  • go1.25-openssl SLES for SAP applications 16.0, SLES 16.0 1.25.7-160000.1.1
  • go1.24-openssl SLES for SAP 15 SP6, SLES 15 SP6-LTSS, SLE Module for Development Tools 15 SP7 +1 more 1.24.12-150600.13.15.1
  • go1.25-openssl SLES for SAP 15 SP6, SLES 15 SP6-LTSS, SLE Module for Development Tools 15 SP7 +1 more 1.25.6-150600.13.9.1
  • go1.25-openssl SLES for SAP 15 SP5, SLES for SAP 15 SP4, SLES 15 SP5-LTSS +5 more 1.25.6-150000.1.9.1
  • go1.24-openssl SLES for SAP 15 SP5, SLES for SAP 15 SP4, SLES 15 SP5-LTSS +5 more 1.24.12-150000.1.18.1
  • govulncheck-vulndb SLE Module for Package Hub 15 SP6, openSUSE Leap 15.6 0.0.20251209T172047-150000.1.127.1
  • go1.24 SLES for SAP applications 16.0, SLES 16.0 1.24.11-160000.1.1

suse advisories SUSE-SU-2026:20629-1SUSE-SU-2026:20623-1SUSE-SU-2026:0308-1SUSE-SU-2026:0298-1SUSE-SU-2026:0297-1SUSE-SU-2026:0296-1

  • govulncheck-vulndb openSUSE Leap 16.0 0.0.20260723T184607-160000.1.1
  • go1.24-openssl openSUSE Leap 16.0 1.24.13-160000.1.1
  • go1.25-openssl openSUSE Leap 16.0 1.25.7-160000.1.1
  • go1.24 openSUSE Leap 16.0 1.24.11-160000.1.1
  • go1.25 openSUSE Leap 16.0 1.25.5-160000.1.1
  • govulncheck-vulndb openSUSE Tumbleweed 0.0.20251029T215107-1.1
  • go1.24 openSUSE Tumbleweed 1.24.8-1.1
  • go1.25 openSUSE Tumbleweed 1.25.2-1.1

opensuse advisories openSUSE-SU-2026:21483-1openSUSE-SU-2026:20308-1openSUSE-SU-2026:20301-1openSUSE-SU-2025:20158-1openSUSE-SU-2025:20157-1openSUSE-SU-2025:15695-1

  • go Alpine 3.22 1.24.8-r0
  • go Alpine 3.24, Alpine 3.23 1.25.2-r0

alpine advisories ALPINE-CVE-2025-61725

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

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-2025-61725 updated cvss 5.3

net/mail: Excessive CPU consumption in ParseAddress in net/mail

  • Red Hat Assisted Installer for Red Hat OpenShift Container Platform 2 rhai/assisted-installer-rhel9 Red Hat cert-manager Operator for Red Hat OpenShift cert-manager/jetstack-cert-manager-rhel9 Red Hat Compliance Operator compliance/openshift-compliance-operator-bundle Red Hat Confidential Compute Attestation build-of-trustee/trustee-rhel9-operator, openshift-sandboxed-containers/osc-monitor-rhel9 Red Hat Cryostat 4 cryostat/cryostat-storage-rhel9 Red Hat Custom Metric Autoscaler operator for Red Hat Openshift custom-metrics-autoscaler/custom-metrics-autoscaler-rhel9
    +27 more products
    Red Hat External Secrets Operator for Red Hat OpenShift external-secrets-operator/external-secrets-rhel9 Red Hat ExternalDNS Operator edo/external-dns-rhel8, edo/external-dns-rhel9 Red Hat File Integrity Operator compliance/openshift-compliance-operator-bundle Red Hat Gatekeeper 3 gatekeeper/gatekeeper-rhel9-operator Red Hat Logging Subsystem for Red Hat OpenShift openshift-logging/logging-loki-rhel9 Red Hat Logical Volume Manager Storage lvms4/lvms-rhel9-operator Red Hat Migration Toolkit for Applications 8 mta/mta-cli-rhel9 Red Hat Migration Toolkit for Containers rhmtc/openshift-migration-controller-rhel8 Red Hat Multicluster Engine for Kubernetes multicluster-engine/discovery-rhel9, multicluster-engine/assisted-installer-rhel8, multicluster-engine/assisted-installer-rhel9 Red Hat Multicluster Global Hub multicluster-globalhub/multicluster-globalhub-agent-rhel9 Red Hat Network Observability Operator network-observability/network-observability-rhel9-operator Red Hat OpenShift API for Data Protection oadp/oadp-velero-rhel9, oadp/oadp-velero-plugin-rhel9 Red Hat OpenShift Developer Tools and Services ocp-tools-4/jenkins-agent-base-rhel9 Red Hat OpenShift Lightspeed openshift-lightspeed/lightspeed-rhel9-operator Red Hat OpenShift Pipelines openshift-pipelines-client Red Hat OpenShift Serverless kn-workflow-plugin Red Hat OpenShift Service Mesh 2 openshift-service-mesh/openshift-golang-builder Red Hat OpenShift Service Mesh 3 openshift-service-mesh/istio-cni-rhel9, openshift-service-mesh/openshift-golang-builder Red Hat Power monitoring for Red Hat OpenShift openshift-power-monitoring/power-monitoring-rhel9-operator Red Hat Advanced Cluster Management for Kubernetes 2 rhacm2/thanos-rhel9 Red Hat Advanced Cluster Security 4 advanced-cluster-security/rhacs-main-rhel8 Red Hat Ansible Automation Platform 2 automation-gateway-proxy, ansible-automation-platform/platform-operator-bundle Red Hat Certification Program for Red Hat Enterprise Linux 9 redhat-certification-preflight Red Hat Connectivity Link 1 rhcl-1/authorino-rhel9 Red Hat Developer Hub 1 rhdh/rhdh-rhel9-operator Red Hat Edge Manager 1 flightctl, rhem/flightctl-api-rhel9 Red Hat Enterprise Linux 8 golang, podman, skopeo, buildah, grafana, go-toolset, +32 more
    affected: workaround, no fix available “Fix deferred”
  • Red Hat Enterprise Linux 9 golang, podman, skopeo, buildah, grafana, ignition, +25 more
    affected: workaround, no fix available, no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 10 golang, podman, skopeo, buildah, grafana, ignition, +4 more Red Hat Enterprise Linux AI (RHEL AI) 3 golang Red Hat Lightspeed for Runtimes Operator rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator Red Hat OpenShift AI (RHOAI) rhoai/odh-maas-api-rhel9, rhoai/odh-model-registry-rhel9, rhoai/odh-kueue-controller-rhel8 Red Hat OpenShift Cluster Manager CLI ocm-cli-clients/ocm-cli-rhel9 Red Hat OpenShift Container Platform 4 cri-o, podman, skopeo, ignition, openshift, microshift, +41 more
    affected: workaround, no fix available “Fix deferred”

18 more affected, 1 more fixed, 1 more not affected in the full advisory

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

0.65% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
OSV 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
bitnami golang
<1.24.8
>=1.25.0, <1.25.2
1.24.8
1.25.2
go stdlib
<1.24.8
>=1.25.0, <1.25.2
1.24.8
1.25.2

Affected products

  • Go standard library net/mail

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.