How severe is CVE-2024-47824?

CVE-2024-47824 has a CVSS 4.0 base score of 8.7, rated high severity.

Is CVE-2024-47824 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2024-47824?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2024-47824 have an EU (EUVD) identifier?

Yes. CVE-2024-47824 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-3112.

When was CVE-2024-47824 published?

CVE-2024-47824 was published on 2024-10-15 and last updated on 2026-06-17.

CVE-2024-47824

CVE-2024-47824 is a high-severity vulnerability with a CVSS 4.0 base score of 8.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-200.

Key facts

Severity: High (CVSS 4.0 base score 8.7)
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-3112
Weakness: CWE-200
Published: 2024-10-15
Last modified: 2026-06-17

Description

matrix-react-sdk is react-based software development kit for inserting a Matrix chat/VOIP client into a web page. Starting in version 3.18.0 and before 3.102.0, matrix-react-sdk allows a malicious homeserver to potentially steal message keys for a room when a user invites another user to that room, via injection of a malicious device controlled by the homeserver. This is possible because matrix-react-sdk before 3.102.0 shared historical message keys on invite. Version 3.102.0 fixes this issue by disabling sharing message keys on invite by removing calls to the vulnerable functionality. No known workarounds are available.

Frequently asked questions

What is CVE-2024-47824?: matrix-react-sdk is react-based software development kit for inserting a Matrix chat/VOIP client into a web page. Starting in version 3.18.0 and before 3.102.0, matrix-react-sdk allows a malicious homeserver to potentially steal message keys for a room when a user invites another user to that room, via injection of a malicious device controlled by the homeserver. This is possible because matrix-react-sdk before 3.102.0 shared historical message keys on invite. Version 3.102.0 fixes this issue by disabling sharing message keys on invite by removing calls to the vulnerable functionality. No known workarounds are available.
How severe is CVE-2024-47824?: CVE-2024-47824 has a CVSS 4.0 base score of 8.7, rated high severity.
Is CVE-2024-47824 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2024-47824?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2024-47824 have an EU (EUVD) identifier?: Yes. CVE-2024-47824 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-3112.
When was CVE-2024-47824 published?: CVE-2024-47824 was published on 2024-10-15 and last updated on 2026-06-17.

References

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