Denial-of-Service in OpenCanary's MongoDB module

published 2026-07-22 3 mo ago modified 2026-10-24 16 d ago also EUVD-2026-47648

cvss: 6.9; version 4.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 37%
public exploits: 0; none known

Denial-of-Service in Thinkst Applied Research OpenCanary (MongoDB module) allows Excessive Allocation.

This issue affects OpenCanary 0.9.8 only.

Patch / fix

fixed in 1

Thinkst Applied Research OpenCanary 0.9.9

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 3 mo ago (2026-07-22)

Exploit prediction

0.43% chance of exploitation in the next 30 days, higher than 37% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	4.0	6.9	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:P/S:N
CNA	4.0	6.9	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:P/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:N/AU:X/R:X/V:X/RE:X/U:X

Affected products

Thinkst Applied Research OpenCanary

Classification

Weakness

CWE-835 Loop with Unreachable Exit Condition
CWE-20 Improper Input Validation

References

github.com /thinkst/opencanary/security/advisories/GHSA-vg37-pc42-q265

Sources

CVE List CVE-2026-16551
NVD CVE-2026-16551

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.

Summary