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Fencer Vulns
medium 6.5

CVE-2025-61728 json

Excessive CPU consumption when building archive index in archive/zip

published 2026-01-28 9 mo ago modified 2026-09-08 2 mo ago also BIT-golang-2025-61728 , EUVD-2025-206432 , GO-2026-4342

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 54%
public exploits
0
none known

Summary

archive/zip uses a super-linear file name indexing algorithm that is invoked the first time a file in an archive is opened. This can lead to a denial of service when consuming a maliciously constructed ZIP archive.

Patch / fix

  • bitnami golang 1.24.12, 1.25.6
  • go stdlib 1.24.12, 1.25.6
  • Go standard library archive/zip 1.24.12, 1.25.6
  • flightctl edge manager 1.1 1.1.2-1.el10em
  • flightctl edge manager 1.1 1.1.2-1.el9em
  • flightctl-cli edge manager 1.1 1.1.2-1.el10em
  • flightctl-cli edge manager 1.1 1.1.2-1.el9em
  • flightctl-agent edge manager 1.1 1.1.2-1.el10em
  • flightctl-agent edge manager 1.1 1.1.2-1.el9em
  • flightctl-selinux edge manager 1.1 1.1.2-1.el10em
  • flightctl-selinux edge manager 1.1 1.1.2-1.el9em

red hat advisories RHEA-2026:14435RHSA-2026:51288RHSA-2026:49944RHSA-2026:3831RHSA-2026:7854RHSA-2026:28886

  • 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
  • govulncheck-vulndb openSUSE Leap 15.6 0.0.20260128T190828-150000.1.143.1
  • 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
  • go1.25 SLES for SAP applications 16.0, SLES 16.0 1.25.6-160000.1.1

suse advisories SUSE-SU-2026:20629-1SUSE-SU-2026:20623-1SUSE-SU-2026:0354-1SUSE-SU-2026:0308-1SUSE-SU-2026:0298-1SUSE-SU-2026:0297-1

  • govulncheck-vulndb openSUSE Leap 16.0 0.0.20260723T184607-160000.1.1
  • coredns openSUSE Leap 16.0 1.14.2-bp160.1.1
  • kubelogin openSUSE Tumbleweed 0.2.16-1.1
  • 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
  • coredns openSUSE Tumbleweed 1.14.1-1.1
  • go1.25 openSUSE Leap 16.0 1.25.6-160000.1.1
  • go1.24 openSUSE Leap 16.0 1.24.12-160000.1.1

opensuse advisories openSUSE-SU-2026:21483-1openSUSE-SU-2026:20619-1openSUSE-SU-2026:10329-1openSUSE-SU-2026:20308-1openSUSE-SU-2026:20301-1openSUSE-SU-2026:10101-1

  • crit AlmaLinux 8 3.18-5.module_el8.10.0+4047+545787c4
  • crit AlmaLinux 8 3.18-5.module_el8.10.0+3901+4b80ecd7
  • crit AlmaLinux 8 3.18-5.module_el8.10.0+4120+03ad4b47
  • crit AlmaLinux 8 3.18-5.module_el8.10.0+3845+87b84552
  • criu AlmaLinux 8 3.18-5.module_el8.10.0+4089+ce72bbbe
  • criu AlmaLinux 8 3.18-5.module_el8.10.0+4120+03ad4b47
  • criu AlmaLinux 8 3.18-5.module_el8.10.0+3876+e55593a8
  • criu AlmaLinux 8 3.18-5.module_el8.10.0+3909+6e1c1eb7

almalinux advisories ALSA-2026:4672ALSA-2026:3752ALSA-2026:3753ALSA-2026:3336ALSA-2026:3337ALSA-2026:3188

  • osbuild-composer Rocky Linux 9 165.1-2.el9_8.rocky.0.1
  • osbuild-composer Rocky Linux 10 165.1-2.el10_2.rocky.0.1
  • osbuild-composer Rocky Linux 10 149-5.el10_1.rocky.0.8
  • osbuild-composer Rocky Linux 9 149-4.el9_7.rocky.0.8
  • criu Rocky Linux 8 3.18-5.module+el8.10.0+1896+b18fa106
  • criu Rocky Linux 8 3.18-5.module+el8.10.0+1880+8e896d1b
  • criu Rocky Linux 8 3.18-5.module+el8.10.0+1874+ce489889
  • criu Rocky Linux 8 3.18-5.module+el8.10.0+1872+2e18eb19

rocky linux advisories RLSA-2026:22714RLSA-2026:22450RLSA-2026:3752RLSA-2026:3753RLSA-2026:4672RLSA-2026:3336

  • go Alpine 3.22 1.24.12-r0
  • go Alpine 3.24, Alpine 3.23 1.25.6-r0
  • opentofu Alpine 3.24 1.11.4-r0

alpine advisories ALPINE-CVE-2025-61728

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

  • golang Azure Linux 3.0 1.24.12-1
  • golang Azure Linux 3.0 1.25.6-1

azure linux advisories AZL-75707AZL-75719

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-2025-61728 updated cvss 7.5

golang: archive/zip: Excessive CPU consumption when building archive index in archive/zip

  • Red Hat Confidential Compute Attestation openshift-sandboxed-containers/osc-rhel9-operator, openshift-sandboxed-containers/osc-podvm-payload-rhel9, openshift-sandboxed-containers/osc-cloud-api-adaptor-rhel9
    affected: workaround, no fix planned “Will not fix”
  • Red Hat Deployment Validation Operator dvo/deployment-validation-rhel8-operator Red Hat Multicluster Engine for Kubernetes multicluster-engine/assisted-service-8-rhel8, multicluster-engine/assisted-service-9-rhel9, multicluster-engine/image-based-install-rhel9
    affected: workaround, no fix available
  • Red Hat Node Maintenance Operator container-native-virtualization/node-maintenance-operator
    affected: workaround, no fix planned “Will not fix”
  • Red Hat OpenShift Lightspeed openshift-lightspeed/openshift-mcp-server-rhel9 Red Hat OpenShift Pipelines openshift-pipelines-client
    affected: workaround, no fix available
  • Red Hat OpenShift Serverless openshift-serverless-clients, openshift-serverless-1/kn-plugin-func-func-util-rhel9, openshift-serverless-1/kn-backstage-plugins-eventmesh-rhel9
    affected: workaround, no fix available, no fix planned “Will not fix”
  • Red Hat OpenShift Service Mesh 2 openshift-service-mesh/openshift-golang-builder Red Hat Advanced Cluster Management for Kubernetes 2 rhacm2/thanos-rhel9, rhacm2/prometheus-rhel9, rhacm2/acm-grafana-rhel9, rhacm2/node-exporter-rhel9, rhacm2/memcached-exporter-rhel9, rhacm2/prometheus-alertmanager-rhel9, +1 more
    affected: workaround, no fix available
  • Red Hat Ceph Storage 5 rhel8/grafana, rhel9/grafana, rhceph/grafana-rhel9 Red Hat Ceph Storage 6 rhel8/grafana, rhel9/grafana, rhceph/grafana-rhel9 Red Hat Ceph Storage 7 rhceph/grafana-rhel9 Red Hat Ceph Storage 8 rhceph/grafana-rhel9
    affected: workaround, no fix available “Fix deferred”
  • Red Hat Edge Manager 1 rhem/flightctl-api-rhel9, rhem/flightctl-worker-rhel9, rhem/flightctl-db-setup-rhel9, rhem/flightctl-periodic-rhel9, rhem/flightctl-pam-issuer-rhel9, rhem/flightctl-cli-artifacts-rhel9, +4 more Red Hat Enterprise Linux 8 podman, podman-tests, podman-docker, podman-remote, podman-gvproxy, podman-plugins, +2 more Red Hat Enterprise Linux 9 go-toolset, gvisor-tap-vsock, gvisor-tap-vsock-gvforwarder Red Hat Enterprise Linux 10 gvisor-tap-vsock
    affected: workaround, no fix available
show 20 more
  • Red Hat OpenShift AI (RHOAI) rhoai/odh-model-registry-rhel9, rhoai/odh-mod-arch-gen-ai-rhel9, rhoai/odh-kueue-controller-rhel9, rhoai/odh-model-registry-operator-rhel8, rhoai/odh-model-registry-operator-rhel9 Red Hat OpenShift Container Platform 4 openshift, microshift, microshift-olm, microshift-sriov, prometheus-promu, microshift-multus, +36 more
    affected: workaround, no fix available, no fix planned “Will not fix”
  • Red Hat OpenShift for Windows Containers openshift4-wincw/windows-machine-config-rhel9-operator, openshift4-wincw/windows-machine-config-operator-bundle Red Hat OpenShift Virtualization 4 openshift-service-mesh/openshift-golang-builder Red Hat Quay 3 quay/clair-rhel8, quay/clair-rhel9, quay/quay-builder-rhel8, quay/quay-builder-rhel9
    affected: workaround, no fix available
  • Red Hat Builds for Red Hat OpenShift 1.6.0 openshift-builds 1773931788, openshift-builds 1773931994
    fixed: vendor fix RHSA-2026:5549
  • Red Hat Cert Manager support for Red Hat OpenShift release 1.17 cert-manager 1774341716, cert-manager 1774342146
    fixed: vendor fix RHSA-2026:5645
  • Red Hat Cert Manager support for Red Hat OpenShift release 1.18 cert-manager/cert-manager-operator-rhel9 1789029076, cert-manager/jetstack-cert-manager-rhel9 1791459711, cert-manager/cert-manager-istio-csr-rhel9 1791459759, cert-manager/jetstack-cert-manager-acmesolver-rhel9 1791459707
    fixed: vendor fix RHSA-2026:82354
  • Red Hat Cryostat 4 on RHEL 9 cryostat/cryostat-storage-rhel9 4.1.1-3
    fixed: vendor fix RHSA-2026:3186
  • Red Hat Custom Metric Autoscaler 2.19 custom-metrics-autoscaler/custom-metrics-autoscaler-rhel9 1780101239, custom-metrics-autoscaler/custom-metrics-autoscaler-adapter-rhel9 1780101236, custom-metrics-autoscaler/custom-metrics-autoscaler-rhel9-operator 1779953535, custom-metrics-autoscaler/custom-metrics-autoscaler-admission-webhooks-rhel9 1780101226
    fixed: vendor fix RHSA-2026:26636
  • Red Hat DevWorkspace Operator 0.4 devworkspace 1773953459, devworkspace 1773953548
    fixed: vendor fix RHSA-2026:5851
  • Red Hat Multicluster Global Hub 1.4.9 multicluster-globalhub 1774222322, multicluster-globalhub 1774269698, multicluster-globalhub 1774269709, multicluster-globalhub 1774269747, multicluster-globalhub 1774855916
    fixed: vendor fix RHSA-2026:6429
  • Red Hat Multicluster Global Hub 1.5.8 multicluster-globalhub 1773649705, multicluster-globalhub 1773649850, multicluster-globalhub 1773650627, multicluster-globalhub 1773650749, multicluster-globalhub 1773650767
    fixed: vendor fix RHSA-2026:5110
  • Red Hat Multicluster Global Hub 1.6.6 multicluster-globalhub 1773649712, multicluster-globalhub 1773650060, multicluster-globalhub 1774245716, multicluster-globalhub 1774245790, multicluster-globalhub 1774362315
    fixed: vendor fix RHSA-2026:6226
  • Red Hat Network Observability (NETOBSERV) 1.11.0 network-observability 1773997913, network-observability 1774887582
    fixed: vendor fix RHSA-2026:6428
  • Red Hat OpenShift API for Data Protection 1.3 oadp/oadp-velero-rhel9 1785180878, oadp/oadp-rhel9-operator 1785426166, oadp/oadp-mustgather-rhel9 1785177359, oadp/oadp-velero-restic-restore-helper-rhel9 1785177438
    fixed: vendor fix RHSA-2026:51033
  • Red Hat OpenShift API for Data Protection 1.4 oadp 1772131017, oadp 1772131148, oadp 1773858961, oadp 1773932894
    fixed: vendor fix RHSA-2026:6251
  • Red Hat OpenShift API for Data Protection 1.5 oadp 1771857381, oadp 1771857537
    fixed: vendor fix RHSA-2026:4170
  • Red Hat Advanced Cluster Management for Kubernetes 2.13 rhacm2 1775176904, rhacm2 1775326442
    fixed: vendor fix RHSA-2026:8229
  • Red Hat Advanced Cluster Management for Kubernetes 2.14 rhacm2/acm-must-gather-rhel9 1783328089, rhacm2/lighthouse-coredns-rhel9 1780204249
    fixed: vendor fix RHSA-2026:36882
  • Red Hat Advanced Cluster Management for Kubernetes 2.15 rhacm2 1774086225, rhacm2 1777380373
    fixed: vendor fix RHSA-2026:8151
  • Red Hat Advanced Cluster Security 4.8 advanced-cluster-security 1772474383, advanced-cluster-security 1773235880
    fixed: vendor fix RHSA-2026:4466
  • Red Hat Advanced Cluster Security 4.9 advanced-cluster-security 1772473062, advanced-cluster-security 1773235860
    fixed: vendor fix RHSA-2026:4467

43 more fixed, 52 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
no
Technical impact
partial
Assessed
9 mo ago

Exploit prediction

0.74% chance of exploitation in the next 30 days, higher than 54% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • openwall.com http://www.openwall.com/lists/oss-security/2026/01/15/4 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
OSV 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
bitnami golang
<1.24.12
>=1.25.0, <1.25.6
1.24.12
1.25.6
go stdlib
<1.24.12
>=1.25.0, <1.25.6
1.24.12
1.25.6

Affected products

  • Go standard library archive/zip

Classification

Weakness
  • CWE-770 Allocation of Resources Without Limits or Throttling

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.