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idna: idna accepts Punycode labels that do not produce any non-ASCII when decoded

🗓️ 07 Oct 2025 09:47:39Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 4 Views

A flaw in idna crate enables hostname spoofing via Punycode labels that render as ASCII or empty.

Related
Packages
Refs
ReporterTitlePublishedViews
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ibm
IBM Security Bulletins		Security Bulletin: IBM DataPower Gateway vulnerable to naming confusion (CVE-2024-12224)
2 Apr 202520:10
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ibm
IBM Security Bulletins		Security Bulletin: IBM Instana Observability is affected by multiple vulnerabilities within Instana Agent container image
26 May 202606:03
–ibm
ibm
IBM Security Bulletins		Security Bulletin: IBM Instana Observability is affected by multiple vulnerabilities within Instana Agent container image
4 May 202607:40
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ibm
IBM Security Bulletins		Security Bulletin: IBM Maximo Application Suite - Monitor Component is vulnerable to idna-0.1.5.crate, idna-0.5.0.crate CVE-2024-12224
8 May 202515:19
–ibm
alpinelinux
AlpineLinux		CVE-2024-12224
30 May 202501:16
–alpinelinux
bdu_fstec
BDU FSTEC		The vulnerability of the Punycode character transformation method, which is used to process domain names, allows attackers to increase their privileges.
28 Oct 202500:00
–bdu_fstec
cgr
Chainguard		CVE-2024-12224 vulnerabilities
9 Dec 202412:00
–cgr
circl
Circl		CVE-2024-12224
30 May 202502:41
–circl
cnnvd
CNNVD		Servo 安全漏洞
30 May 202500:00
–cnnvd
cve
CVE		CVE-2024-12224
30 May 202501:16
–cve
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux7.9ppc64firefox140.3.0-1.el7_9firefox-140.3.0-1.el7_9.ppc64.rpm
Red Hat Enterprise Linux7.9ppc64lefirefox140.3.0-1.el7_9firefox-140.3.0-1.el7_9.ppc64le.rpm
Red Hat Enterprise Linux7.9s390xfirefox140.3.0-1.el7_9firefox-140.3.0-1.el7_9.s390x.rpm
Red Hat Enterprise Linux7.9x86_64firefox140.3.0-1.el7_9firefox-140.3.0-1.el7_9.x86_64.rpm
Red Hat Enterprise Linux7.9ppc64firefox-debuginfo140.3.0-1.el7_9firefox-debuginfo-140.3.0-1.el7_9.ppc64.rpm
Red Hat Enterprise Linux7.9ppc64lefirefox-debuginfo140.3.0-1.el7_9firefox-debuginfo-140.3.0-1.el7_9.ppc64le.rpm
Red Hat Enterprise Linux7.9s390xfirefox-debuginfo140.3.0-1.el7_9firefox-debuginfo-140.3.0-1.el7_9.s390x.rpm

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31 Jul 2026 14:36Current
5.4Medium risk
Vulners AI Score5.4
CVSS 3.18.8
CVSS 45.1
EPSS0.00201
SSVC
CWE-1289
idna cratehostname spoofingpunycode labelsascii renderingempty labelshostname validation
4