What is CVE-2024-31208?

CVE-2024-31208 is a medium-severity vulnerability in Element-hq Synapse, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 6.5/10. Published 2024-04-23.

How severe is CVE-2024-31208?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2024-31208 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Resource exhaustion in Element-hq Synapse

CVE-2024-31208

Synapse is an open-source Matrix homeserver. A remote Matrix user with malicious intent, sharing a room with Synapse instances before 1.105.1, can dispatch specially crafted events to exploit a weakness in the V2 state resolution algorithm…

EPSS: 0.042 (88.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Element-hq Synapse — versions < 1.105.1

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

Frequently asked questions

What is CVE-2024-31208?: CVE-2024-31208 is a medium-severity vulnerability in Element-hq Synapse, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 6.5/10. Published 2024-04-23.
How severe is CVE-2024-31208?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2024-31208 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.