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

🗓️ 06 Oct 2025 09:07:46Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 4 Views

Idna crate flaw enables spoofing and privilege escalation via Punycode labels that render as ASCII.

Related
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Refs
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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 Security Bulletins		Security Bulletin: IBM Instana Observability is affected by multiple vulnerabilities within Instana Agent container image
26 May 202606:03
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IBM Security Bulletins		Security Bulletin: IBM Instana Observability is affected by multiple vulnerabilities within Instana Agent container image
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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
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cnnvd
CNNVD		Servo 安全漏洞
30 May 202500:00
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cve
CVE		CVE-2024-12224
30 May 202501:16
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Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8.8ppc64lefirefox140.3.0-1.el8_8firefox-140.3.0-1.el8_8.ppc64le.rpm
Red Hat Enterprise Linux8.8x86_64firefox140.3.0-1.el8_8firefox-140.3.0-1.el8_8.x86_64.rpm
Red Hat Enterprise Linux8.8ppc64lefirefox-debuginfo140.3.0-1.el8_8firefox-debuginfo-140.3.0-1.el8_8.ppc64le.rpm
Red Hat Enterprise Linux8.8x86_64firefox-debuginfo140.3.0-1.el8_8firefox-debuginfo-140.3.0-1.el8_8.x86_64.rpm
Red Hat Enterprise Linux8.8ppc64lefirefox-debugsource140.3.0-1.el8_8firefox-debugsource-140.3.0-1.el8_8.ppc64le.rpm
Red Hat Enterprise Linux8.8x86_64firefox-debugsource140.3.0-1.el8_8firefox-debugsource-140.3.0-1.el8_8.x86_64.rpm

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31 Jul 2026 14:36Current
7.3High risk
Vulners AI Score7.3
CVSS 3.18.8
CVSS 45.1
EPSS0.00201
SSVC
CWE-1289
idna flawhostname spoofingPunycode labelshostname validationprivilege escalation
4