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Public proof of conceptFix available

CVE-2024-12224

A public proof of concept exists; no exploitation attested.

  • Published2025-05-30
  • Fixed in1.0.0
  • WeaknessCWE-1289 · CWE-352

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Improper Validation of Unsafe Equivalence in punycode by the idna crate from Servo rust-url allows an attacker to create a punycode hostname that one part of a system might treat as distinct while another part of that system would treat as equivalent to another hostname.

Timeline

dates in UTC
  1. 2025-05-3002:15CVE publishedNVD

Versions per branch

NVD · OSV
Servo idna
BranchAffectedFixed in
1.0< 1.0.01.0.0
1.0≥ 0.0.0-0, < 1.0.01.0.0

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As mozilla, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2025-05-30

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • afterburnSUSE:Linux Micro 6.1all versions · fixed in 5.10.0.git73.b97f772-slfo.1.1_1.1
  • afterburnSUSE:Linux Micro 6.0all versions · fixed in 5.10.0.git73.b97f772-1.1
  • afterburnSUSE:Linux Enterprise Micro 5.5all versions · fixed in 5.9.0.git21.a73f509-150500.3.3.1
  • afterburnSUSE:Linux Enterprise Micro 5.4all versions · fixed in 5.9.0.git21.a73f509-150400.3.3.1
  • afterburnSUSE:Linux Enterprise Micro 5.3all versions · fixed in 5.9.0.git21.a73f509-150400.3.3.1
  • afterburnSUSE:Linux Enterprise Micro 5.2all versions · fixed in 5.9.0.git21.a73f509-150300.3.5.1
  • afterburnopenSUSE:Tumbleweedall versions · fixed in 5.9.0.git21.a73f509-2.1
  • atuinWolfiall versions · fixed in 18.4.0-r0

173 more package ranges on OSV.dev

Vendor advisories

  • CVE-2024-12224 Red Hat Product Security270 products fixed · 62 known affected

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

    openshift-serverless-1/kn-plugin-func-func-util-rhel8 as a component of OpenShift Serverless · fido-device-onboard.src as a component of Red Hat Enterprise Linux 10 · gjs.src as a component of Red Hat Enterprise Linux 10 · +59 more

  • RHSA-2026:87410 Red Hat Product Security3 products fixed

    Red Hat Security Advisory: RHOAI 2.25.12 - Red Hat OpenShift AI

  • RHSA-2026:42644 Red Hat Product Security3 products fixed

    Red Hat Security Advisory: RHOAI 2.25.9 - Red Hat OpenShift AI

  • RHSA-2025:17453 Red Hat Product Security8 products fixed

    Red Hat Security Advisory: firefox security update

  • RHSA-2025:17378 Red Hat Product Security17 products fixed

    Red Hat Security Advisory: firefox security update

  • RHSA-2025:17374 Red Hat Product Security17 products fixed

    Red Hat Security Advisory: firefox security update

18 more advisories

Full record on NVD

Fix

  1. Update Servo idna to 1.0.0
  2. Vendor fix Red Hat Product Security RHSA-2026:87410 · 3 productsFor Red Hat OpenShift AI 2.25.12 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this errata update: https://docs.redhat.com/en/documentation/red_hat_openshift_ai/
  3. Vendor fix Red Hat Product Security RHSA-2026:42644 · 3 productsFor Red Hat OpenShift AI 2.25.9 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this errata update: https://docs.redhat.com/en/documentation/red_hat_openshift_ai/
  4. Vendor fix Red Hat Product Security RHSA-2025:17453 · 8 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
  5. Workaround from the vendor Red Hat Product Security RHSA-2026:87410 · 205 productsMitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • CISA-ADPSSVC decisionpoc2025-05-30
  • CNACVSS 4.05.1known since 2026-10-23
  • NVDCVSS 3.18.8read 2026-10-23
  • CNAweakness (CWE)CWE-1289known since 2026-10-23
  • NVDweakness (CWE)CWE-352read 2026-10-23
  • FIRST EPSSEPSS score0.2 %2026-11-08
  • OSVaffected packages—
  • GitHub AdvisoriesadvisoryMODERATE2024-12-09

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 4.0 vector
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published
2025-05-30
Last Modified
2026-06-17
NVD status
Analyzed
GitHub Advisory
GHSA-h97m-ww89-6jmq

Frequently asked questions

What is CVE-2024-12224?

Improper Validation of Unsafe Equivalence in punycode by the idna crate from Servo rust-url allows an attacker to create a punycode hostname that one part of a system might treat as distinct while another part of that system would treat as equivalent to another hostname.

Is CVE-2024-12224 actively exploited?

A proof-of-concept exploit exists for CVE-2024-12224, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2024-12224?

CVE-2024-12224 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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