CVE-2024-52805

HIGH EPSS 49.1%
Published Dec 3, 20241y ago · Modified Jun 17, 20261w ago
8.2 CVSS 4.0
High
Find Similar
Published Dec 3, 2024 1y ago
Last Modified Jun 17, 2026 1w ago

Description

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 used to amplify denial of service attacks. Synapse 1.120.1 resolves the issue by denying requests with unsupported multipart/form-data content type.

CVSS Details

Base Score
8.2
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/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
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
49.1% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-770

Affected Products 1

VendorProductVersionRange
matrixsynapse* <1.120.1

References 3

  • github.com https://github.com/element-hq/synapse/security/advisories/GHSA-rfq8-j7rh-8hf2
    Vendor Advisory
  • github.com https://github.com/twisted/twisted/issues/4688#issuecomment-1167705518
    Issue Tracking
  • github.com https://github.com/twisted/twisted/issues/4688#issuecomment-2385711609
    Issue Tracking

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.