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Fencer Vulns
high 7.5

CVE-2025-6710 json

Pre-authentication Denial of Service Stack Overflow Vulnerability in JSON Parsing via Excessive Recursion in MongoDB

published 2025-06-26 16 mo ago modified 2026-09-08 2 mo ago also BIT-mongodb-2025-6710 , EUVD-2025-19230

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 32%
public exploits
0
none known

Summary

MongoDB Server may be susceptible to stack overflow due to JSON parsing mechanism, where specifically crafted JSON inputs may induce unwarranted levels of recursion, resulting in excessive stack space consumption. Such inputs can lead to a stack overflow that causes the server to crash which could occur pre-authorisation. This issue affects MongoDB Server v7.0 versions prior to 7.0.17 and MongoDB Server v8.0 versions prior to 8.0.5.

The same issue affects MongoDB Server v6.0 versions prior to 6.0.21, but an attacker can only induce denial of service after authenticating.

Patch / fix

  • bitnami mongodb 6.0.21, 7.0.17, 8.0.5
  • MongoDB Inc MongoDB Server 6.0.21, 7.0.17, 8.0.5

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
16 mo ago

Exploit prediction

0.38% chance of exploitation in the next 30 days, higher than 32% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
OSV 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
bitnami mongodb
>=6.0.0, <6.0.21
>=7.0.0, <7.0.17
>=8.0.0, <8.0.5
6.0.21
7.0.17
8.0.5

Affected products

  • MongoDB Inc MongoDB Server

Classification

Weakness
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.