CVE-2024-47824

HIGHNVD 8.78.7—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.7 under NVD CVSS v3. EPSS exploit probability: 0.7% (49th percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
8.7EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.7%CVSS: 8.7Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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.

CVSS v3
8.7
EG Score
8.7HIGHmedium confidence
EG Risk
54
EG Risk 54/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity87% × 45%
Exploitation1% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.7%
EPSS %ILE
49th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

October 15, 2024

Last Modified

April 15, 2026

Advisory Details (3)

Auto-updated Sep 1, 2026
Patch available. Sources: github_commit, github_pr, github.
githubMentions a patch (unverified)

Malicious homeservers can steal message keys when the matrix-react-sdk user invites another user to a room · Advisory · matrix-org/matrix-react-sdk · GitHub

https://github.com/matrix-org/matrix-react-sdk/security/advisories/GHSA-qcvh-p9jq-wp8v
github_pr Patch Available

Remove room key history sharing

Patch available: matrix-org/matrix-react-sdk v3.102.0-rc.0 (PR #12618 merged 2024-06-14)

https://github.com/matrix-org/matrix-react-sdk/pull/12618
github_commit Patch Available

commit 6fc9d7641c51 (matrix-org/matrix-react-sdk)

Patch available: matrix-org/matrix-react-sdk v3.102.0-rc.0 (contains commit 6fc9d7641c51)

https://github.com/matrix-org/matrix-react-sdk/commit/6fc9d7641c51ca3db8225cf58b9d6e6fdd2d6556

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFix by version rangeDependents
matrix-react-sdk—
  • 3.18.0 up to 3.102.0: fixed in 3.102.0
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 7× in last 7d / 32× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 205 total refreshes for this CVE.

  1. 2026-10-09 20:05 UTCEPSS rescore
  2. 2026-10-08 17:08 UTCEPSS rescore
  3. 2026-10-07 23:46 UTCEPSS rescore
  4. 2026-10-06 15:16 UTCEPSS rescore
  5. 2026-10-05 17:41 UTCEPSS rescore
  6. 2026-10-04 23:20 UTCEPSS rescore
  7. 2026-10-03 14:24 UTCEPSS rescore
  8. 2026-10-01 19:48 UTCEPSS rescore
  9. 2026-09-30 19:55 UTCEG score recompute
  10. 2026-09-30 15:02 UTCEPSS rescore
  11. 2026-09-29 15:18 UTCEPSS rescore
  12. 2026-09-28 13:50 UTCEPSS rescore
  13. 2026-09-27 13:44 UTCEPSS rescore
  14. 2026-09-26 15:57 UTCEPSS rescore
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  16. 2026-09-24 14:01 UTCEPSS rescore
  17. 2026-09-23 13:46 UTCEPSS rescore
  18. 2026-09-22 14:47 UTCEPSS rescore
  19. 2026-09-21 11:19 UTCOSV refresh
  20. 2026-09-20 20:14 UTCEPSS rescore
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  22. 2026-09-19 15:40 UTCEPSS rescore
  23. 2026-09-18 19:26 UTCEPSS rescore
  24. 2026-09-17 19:27 UTCEPSS rescore
  25. 2026-09-16 14:06 UTCEPSS rescore
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  1. 2026-09-16 05:12 UTCEPSS rescore
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  4. 2026-09-13 16:45 UTCEPSS rescore
  5. 2026-09-12 14:59 UTCEPSS rescore
  6. 2026-09-11 14:51 UTCEPSS rescore
  7. 2026-09-11 09:35 UTCEPSS rescore
  8. 2026-09-10 09:33 UTCEPSS rescore
  9. 2026-09-08 21:58 UTCEPSS rescore
  10. 2026-09-07 16:00 UTCEPSS rescore
  11. 2026-09-06 13:46 UTCEPSS rescore
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  13. 2026-09-04 13:59 UTCEPSS rescore
  14. 2026-09-04 05:05 UTCEPSS rescore
  15. 2026-09-02 14:10 UTCEPSS rescore
  16. 2026-09-02 09:34 UTCOSV refresh
  17. 2026-09-01 13:52 UTCEPSS rescore
  18. 2026-09-01 13:52 UTCEPSS rescore
  19. 2026-09-01 04:37 UTCEPSS rescore
  20. 2026-08-30 19:16 UTCEPSS rescore
  21. 2026-08-30 01:20 UTCEPSS rescore
  22. 2026-08-28 21:39 UTCEPSS rescore
  23. 2026-08-27 14:23 UTCEPSS rescore
  24. 2026-08-26 14:44 UTCEPSS rescore
  25. 2026-08-25 13:47 UTCEPSS rescore
  26. 2026-08-24 14:15 UTCEPSS rescore
  27. 2026-08-23 00:18 UTCEPSS rescore
  28. 2026-08-21 23:47 UTCEPSS rescore
  29. 2026-08-20 22:54 UTCEPSS rescore
  30. 2026-08-19 17:02 UTCEPSS rescore
  31. 2026-08-19 17:02 UTCEPSS rescore
  32. 2026-08-18 13:46 UTCEPSS rescore
  33. 2026-08-17 13:45 UTCEPSS rescore
  34. 2026-08-16 14:54 UTCEPSS rescore
  35. 2026-08-16 08:20 UTCOSV refresh
  36. 2026-08-16 02:13 UTCEPSS rescore
  37. 2026-08-15 01:29 UTCEPSS rescore
  38. 2026-08-13 21:59 UTCEPSS rescore
  39. 2026-08-12 13:49 UTCEPSS rescore
  40. 2026-08-11 13:40 UTCEPSS rescore
  41. 2026-08-10 23:58 UTCEPSS rescore
  42. 2026-08-09 13:45 UTCEPSS rescore
  43. 2026-08-08 16:35 UTCEPSS rescore
  44. 2026-08-07 16:25 UTCEPSS rescore
  45. 2026-08-06 13:45 UTCEPSS rescore
  46. 2026-08-05 19:16 UTCEPSS rescore
  47. 2026-08-04 15:08 UTCEPSS rescore
  48. 2026-08-04 10:36 UTCEPSS rescore
  49. 2026-08-03 10:34 UTCEPSS rescore
  50. 2026-08-02 02:25 UTCEPSS rescore
  51. 2026-08-01 04:14 UTCEPSS rescore
  52. 2026-08-01 04:14 UTCEPSS rescore
  53. 2026-08-01 02:12 UTCOSV refresh
  54. 2026-07-30 16:26 UTCEPSS rescore
  55. 2026-07-30 01:29 UTCEPSS rescore
  56. 2026-07-28 15:35 UTCEPSS rescore
  57. 2026-07-27 14:11 UTCEPSS rescore
  58. 2026-07-26 14:53 UTCEPSS rescore
  59. 2026-07-26 14:53 UTCEPSS rescore
  60. 2026-07-25 14:17 UTCEPSS rescore
  61. 2026-07-25 14:16 UTCEPSS rescore
  62. 2026-07-24 14:16 UTCEPSS rescore
  63. 2026-07-23 14:17 UTCEPSS rescore
  64. 2026-07-23 14:17 UTCEPSS rescore
  65. 2026-07-23 02:41 UTCEG score recompute
  66. 2026-07-22 14:07 UTCEPSS rescore
  67. 2026-07-22 14:07 UTCEPSS rescore
  68. 2026-07-21 15:23 UTCEPSS rescore
  69. 2026-07-20 17:06 UTCEPSS rescore
  70. 2026-07-19 14:30 UTCEPSS rescore
  71. 2026-07-19 14:30 UTCEPSS rescore
  72. 2026-07-19 02:28 UTCEPSS rescore
  73. 2026-07-19 02:28 UTCEPSS rescore
  74. 2026-07-18 10:03 UTCEPSS rescore
  75. 2026-07-18 10:03 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2024-47824?
CVE-2024-47824 is a high vulnerability published on October 15, 2024. 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,…
When was CVE-2024-47824 disclosed?
CVE-2024-47824 was first published on October 15, 2024, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-47824 actively exploited?
CVE-2024-47824 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.7% probability of exploitation in the next 30 days (49th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2024-47824?
CVE-2024-47824 has a CVSS v3 base score of 8.7 (NVD).
How do I remediate CVE-2024-47824?
A fix for CVE-2024-47824 is available: update to the fixed version the vendor names in its advisory.

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