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

🗓️ 02 Jun 2026 11:22:13Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 21 Views

Go archive/zip DoS: super-linear file name indexing causes high CPU and memory on crafted archives.

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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux10.2aarch64osbuild-composer165.1-2.el10_2osbuild-composer-165.1-2.el10_2.aarch64.rpm
Red Hat Enterprise Linux10.2ppc64leosbuild-composer165.1-2.el10_2osbuild-composer-165.1-2.el10_2.ppc64le.rpm
Red Hat Enterprise Linux10.2s390xosbuild-composer165.1-2.el10_2osbuild-composer-165.1-2.el10_2.s390x.rpm
Red Hat Enterprise Linux10.2x86_64osbuild-composer165.1-2.el10_2osbuild-composer-165.1-2.el10_2.x86_64.rpm
Red Hat Enterprise Linux10.2aarch64osbuild-composer-core165.1-2.el10_2osbuild-composer-core-165.1-2.el10_2.aarch64.rpm
Red Hat Enterprise Linux10.2ppc64leosbuild-composer-core165.1-2.el10_2osbuild-composer-core-165.1-2.el10_2.ppc64le.rpm
Red Hat Enterprise Linux10.2s390xosbuild-composer-core165.1-2.el10_2osbuild-composer-core-165.1-2.el10_2.s390x.rpm
Red Hat Enterprise Linux10.2x86_64osbuild-composer-core165.1-2.el10_2osbuild-composer-core-165.1-2.el10_2.x86_64.rpm
Red Hat Enterprise Linux10.2aarch64osbuild-composer-core-debuginfo165.1-2.el10_2osbuild-composer-core-debuginfo-165.1-2.el10_2.aarch64.rpm
Red Hat Enterprise Linux10.2ppc64leosbuild-composer-core-debuginfo165.1-2.el10_2osbuild-composer-core-debuginfo-165.1-2.el10_2.ppc64le.rpm
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30 Jul 2026 04:18Current
7.2High risk
Vulners AI Score7.2
CVSS 3.16.5
EPSS0.00643
SSVC
21