What is CVE-2024-52805?

CVE-2024-52805 is a high-severity vulnerability in Element-hq Synapse, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2024-12-03.

How severe is CVE-2024-52805?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Element-hq Synapse

CVE-2024-52805

Synapse is an open-source Matrix homeserver. In Synapse before 1.120.1, multipart/form-data requests can in certain configurations transiently increase memory consumption beyond expected levels while processing the request, which can be us…

EPSS: 0.007 (49.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Element-hq Synapse — versions < 1.120.1
Matrix Synapse

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
security-advisories@github.com (x_refsource_MISC, Issue Tracking)
security-advisories@github.com (x_refsource_MISC, Issue Tracking)

Frequently asked questions

What is CVE-2024-52805?: CVE-2024-52805 is a high-severity vulnerability in Element-hq Synapse, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2024-12-03.
How severe is CVE-2024-52805?: High severity. CVSS v3 base score is 7.5 out of 10.