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Golang Org X Text Unicode Norm

1 CVEs product

Monthly

CVE-2026-56852 Jul 21, 19:18 Go HIGH POC PATCH This Week

Denial of service in the golang.org/x/text/unicode/norm package (versions before 0.39.0) allows remote attackers to cause an unrecoverable infinite loop by supplying input containing invalid UTF-8 bytes to a norm.Iter. Any Go service that Unicode-normalizes untrusted input using this widely-used supplementary library can be hung with a single malformed request, consuming CPU until the process is killed. No public exploit identified at time of analysis; EPSS is low (0.22%, 13th percentile), but the network-reachable, no-authentication, no-interaction profile makes it broadly triggerable.

Denial Of Service Red Hat Suse Golang Org X Text Unicode Norm
NVD VulDB GitHub
CVSS 3.1
7.5
EPSS
0.2%
EPSS 0% CVSS 7.5
HIGH POC PATCH This Week

Denial of service in the golang.org/x/text/unicode/norm package (versions before 0.39.0) allows remote attackers to cause an unrecoverable infinite loop by supplying input containing invalid UTF-8 bytes to a norm.Iter. Any Go service that Unicode-normalizes untrusted input using this widely-used supplementary library can be hung with a single malformed request, consuming CPU until the process is killed. No public exploit identified at time of analysis; EPSS is low (0.22%, 13th percentile), but the network-reachable, no-authentication, no-interaction profile makes it broadly triggerable.

Denial Of Service Red Hat Suse +1
NVD VulDB GitHub

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