CVE-2026-16266Disclosure

LOWCVSS 6.3 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Versions of the package mongo-object before 3.0.3 are vulnerable to Prototype Pollution via the expandKey() function in util.js. An attacker can modify the JavaScript prototype chain by supplying a crafted property path containing special keys such as __proto__.

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0.0/ 10 priority

Sources & remediation

Other references

Weakness type (CWE)

CWE-1321

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

1 mentions across 1 observed day

What's happening

Technical details provided in 1 signal
Disclosure: 1 classified signal
1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d

Signal classification1 categories

Disclosure

1100.0%

Referenced assets2 URLs

By indicator

Full discourse1 post

Vulmon Vulnerability Feed@VulmonFeeds91d
Disclosure
CVE-2026-16266 Prototype Pollution Vulnerability in mongo-object Before 3.0.3 vi... https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-16266 Vulnerability Alert Subscriptions: https://alerts.vulmon.com/?utm_source=twitter&utm_medium=social&utm_campaign=2102281&utm_content=1
Post summary
A brief disclosure of CVE-2026-16266 describing a prototype‑pollution flaw in mongo-object <3.0.3, with a link to vulnerability details.
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4.1K followersView on X

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