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Over 27,000 MongoDB Databases Held For Ransom Within A Week

Over 27,000 MongoDB Databases Held For Ransom Within A Week

Jan 09, 2017
The ransomware attacks on poorly secured MongoDB installations have doubled in just a day. A hacker going by the handle Harak1r1 is accessing, copying and deleting unpatched or badly-configured MongoDB databases and then threatening administrators to ransom in exchange of the lost data. It all started on Monday when security researcher Victor Gevers identified nearly 200 instances of a MongoDB installation that have been erased and held for ransom , asking victims to pay hefty ransoms for the data to be restored. By Tuesday, this number reached approximately 2,000 databases as reported by Shodan Founder John Matherly, and by Friday, Gevers and fellow security researcher Niall Merrigan updated this count to 10,500. However, according to recent statistics compiled by Merrigan, the number of compromised systems have reached more than double to 27,000, over the course of about 12 hours. What's worse? Initial attacks saw ransoms of 0.2 Bitcoins (nearly US$184) to the ...
600TB MongoDB Database 'accidentally' exposed on the Internet

600TB MongoDB Database 'accidentally' exposed on the Internet

Jul 22, 2015
System administrators have reportedly exposed almost 600 Terabytes (TB) of MongoDB database due to running outdated and unpatched versions of the NoSQL MongoDB database. The open source MongoDB is the most popular NoSQL database used by companies of all sizes, from eBay and Sourceforge to The New York Times and LinkedIn. According to Shodan's representative John Matherly, nearly 30,000 MongoDB instances are publicly accessible over the Internet without the need of any form of authentication. This huge MongoDB database isn't exposed due to a flaw in its latest version of the software, but due to the use of out-of-date and unpatched versions of the platform that fail to bind to localhost. While investigating NoSQL databases, Matherly focused on MongoDB that is growing in popularity. "It turns out that MongoDB version 2.4.14 seems to be the last version that still listened to 0.0.0.0 [in which listening is enabled for all interfaces] by default, which ...
Someone Hijacking Unsecured MongoDB Databases for Ransom

Someone Hijacking Unsecured MongoDB Databases for Ransom

Jan 04, 2017
Nearly two years back, we warned users about publicly accessible MongoDB instances – almost 600 Terabytes (TB) – over the Internet which require no authentication, potentially leaving websites and servers at risk of hacking. These MongoDB instances weren't exposed due to any flaw in its software, but due to a misconfiguration (bad security practice) that let any remote attacker access MongoDB databases without using any special hacking tool. MongoDB later resolved the issue in the next version of its software by setting unrestricted remote access by default in the configuration, thousands of site administrators have not updated their servers yet. But trust me, they'll now regret this! A Hacker is now hijacking and wiping out unsecured MongoDB databases , but keeping a copy of those databases for asking administrators a ransom of 0.2 Bitcoins (nearly US$211) to return the lost data. So, admins without backups are left in a bind. In fact, the rising price of Bitcoin...
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5 Cloud Security Risks You Can’t Afford to Ignore

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Get expert analysis, attacker insights, and case studies in our 2025 risk report.
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Early Bird Pricing Ends March 24 – Don’t Miss Out

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New MongoDB Flaw Lets Unauthenticated Attackers Read Uninitialized Memory

New MongoDB Flaw Lets Unauthenticated Attackers Read Uninitialized Memory

Dec 27, 2025 Database Security / Vulnerability
A high-severity security flaw has been disclosed in MongoDB that could allow unauthenticated users to read uninitialized heap memory. The vulnerability, tracked as CVE-2025-14847 (CVSS score: 8.7), has been described as a case of improper handling of length parameter inconsistency , which arises when a program fails to appropriately tackle scenarios where a length field is inconsistent with the actual length of the associated data. "Mismatched length fields in zlib compressed protocol headers may allow a read of uninitialized heap memory by an unauthenticated client," according to a description of the flaw in CVE.org. The flaw impacts the following versions of the database - MongoDB 8.2.0 through 8.2.3 MongoDB 8.0.0 through 8.0.16 MongoDB 7.0.0 through 7.0.26 MongoDB 6.0.0 through 6.0.26 MongoDB 5.0.0 through 5.0.31 MongoDB 4.4.0 through 4.4.29 All MongoDB Server v4.2 versions All MongoDB Server v4.0 versions All MongoDB Server v3.6 versions The issue has b...
40,000 UnProtected MongoDB Databases Found on the Internet

40,000 UnProtected MongoDB Databases Found on the Internet

Feb 12, 2015
Nearly 40,000 organisations running MongoDB , a NoSQL high performance and cross-platform document-oriented database, are found to be unprotected and vulnerable to hackers. Three students from University of Saarland in Germany at the Centre for IT Security – Kai Greshake, Eric Petryka and Jens Heyens – discovered that MongoDB databases running at TCP port 27017 as a service on several thousands of commercial web servers are easily accessible on the Internet. MongoDB is an open-source database used by companies of all sizes, across all industries for a wide variety of applications. MongoDB is built for scalability, performance and high availability, scaling from single server deployments to large, complex multi-site architectures. By leveraging in-memory computing, MongoDB provides high performance for both reads and writes. The German researchers said that they were able to get "read and write access" to the unsecured MongoDB databases without using any sp...
MongoDB phpMoAdmin GUI Tool Zero-day Vulnerability Puts Websites at Risk

MongoDB phpMoAdmin GUI Tool Zero-day Vulnerability Puts Websites at Risk

Mar 03, 2015
About two weeks back, over 40,000 organizations running MongoDB were found unprotected and vulnerable to hackers. Now, once again the users of MongoDB database are at risk because of a critical zero-day vulnerability making rounds in underground market. MongoDB , one of the leading NoSQL databases, is an open-source database used by companies of all sizes, across all industries for a wide variety of applications. By leveraging in-memory computing, MongoDB provides high performance for both reads and writes. 'PhPMoAdmin' ZERO-DAY VULNERABILITY Hacker known by the online moniker, "sp1nlock" has found a zero-day vulnerability in ' phpMoAdmin ', a free, open-source, written in PHP, AJAX-based MongoDB GUI (graphical user interface) administration tool that allows you to easily manage noSQL database MongoDB. According to multiple posts available on the exploit selling underground forums, the phpMoAdmin is vulnerable to a Zero-Day Remote Code Exec...
MongoDB Suffers Security Breach, Exposing Customer Data

MongoDB Suffers Security Breach, Exposing Customer Data

Dec 17, 2023 Cyber Attack / Data Security
MongoDB on Saturday disclosed it's actively investigating a security incident that has led to unauthorized access to "certain" corporate systems, resulting in the exposure of customer account metadata and contact information. The American database software company  said  it first detected anomalous activity on December 13, 2023, and that it immediately activated its incident response efforts. It further noted that "this unauthorized access has been going on for some period of time before discovery," but emphasized it's not "aware of any exposure to the data that customers store in MongoDB Atlas." It did not disclose the exact time period of the compromise. In light of the breach, MongoDB recommends that all customers be on the lookout for social engineering and phishing attacks, enforce phishing-resistant multi-factor authentication (MFA), as well as rotate their MongoDB Atlas passwords. That's not all. The company said it's also expe...
MongoDB Vulnerability CVE-2025-14847 Under Active Exploitation Worldwide

MongoDB Vulnerability CVE-2025-14847 Under Active Exploitation Worldwide

Dec 29, 2025 Database Security / Vulnerability
A recently disclosed security vulnerability in MongoDB has come under active exploitation in the wild, with over 87,000 potentially susceptible instances identified across the world. The vulnerability in question is CVE-2025-14847 (CVSS score: 8.7), which allows an unauthenticated attacker to remotely leak sensitive data from the MongoDB server memory. It has been codenamed MongoBleed . "A flaw in zlib compression allows attackers to trigger information leakage," OX Security said . "By sending malformed network packets, an attacker can extract fragments of private data." The problem is rooted in MongoDB Server's zlib message decompression implementation ("message_compressor_zlib.cpp"). It affects instances with zlib compression enabled, which is the default configuration. Successful exploitation of the shortcoming could allow an attacker to extract sensitive information from MongoDB servers, including user information, passwords, and API keys. ...
MongoDB 4.2 Introduces End-to-End Field Level Encryption for Databases

MongoDB 4.2 Introduces End-to-End Field Level Encryption for Databases

Jun 20, 2019
At its developer conference held earlier this week in New York, the MongoDB team announced the latest version of its database management software that includes a variety of advanced features, including Field Level Encryption, Distributed Transactions, and Wildcard Indexes. The newly introduced Field Level Encryption (FLE), which will be available in the upcoming MongoDB 4.2 release, is an end-to-end encryption feature that encrypts and decrypts sensitive users' data on the client-side, preventing hackers from accessing plaintext data even if the database instance left exposed online or the server itself gets compromised. Almost every website, app, and service on the Internet today usually encrypt (particularly "hashing") only users' passwords before storing them into the databases, but unfortunately left other sensitive information unencrypted, including users' online activity data and their personal information. Moreover, even if there is an encryption...
Almost Half A Million Delhi Citizens' Personal Data Exposed Online

Almost Half A Million Delhi Citizens' Personal Data Exposed Online

Feb 21, 2019
Exclusive — A security researcher has identified an unsecured server that was leaking detailed personal details of nearly half a million Indian citizens... thanks to another MongoDB database instance that company left unprotected on the Internet accessible to anyone without password. In a report shared with The Hacker News, Bob Diachenko  disclosed that two days ago he found a 4.1 GB-sized highly sensitive database online, named " GNCTD ," containing information collected on 458,388 individuals located in Delhi, including their  Aadhaar numbers and voter ID numbers. Though it's not clear if the exposed database is linked to the Government of National Capital Territory of Delhi (GNCTD), Diachenko found that the database contains references and email addresses with "transerve.com" domain for users registered with "senior supervisor," and "super admin" designations. Based upon the information available on  Transerve Technologies  webs...
Over 202 Million Chinese Job Seekers' Details Exposed On the Internet

Over 202 Million Chinese Job Seekers' Details Exposed On the Internet

Jan 10, 2019
Cybersecurity researcher has discovered online a massive database containing records of more than 202 million Chinese citizens that remained accessible to anyone on the Internet without authentication until last week. The unprotected 854.8 gigabytes of the database was stored in an instance of MongoDB, a NoSQL high performance and cross-platform document-oriented database, hosted by an American server hosting company. In total, the database contained 202,730,434 records about job candidates from China, including candidates' personal information such as their full name, date of birth, phone number, email address, marriage status, and driver’s license information, along with their professional experience and job expectations. Bob Diachenko, director of cyber risk research at Hacken.io and bug bounty platform HackenProof, discovered the existence of database two weeks ago, which had been secured shortly after his notification on Twitter. However, it is worth noting that ...
Insecure Hadoop Clusters Expose Over 5,000 Terabytes of Data

Insecure Hadoop Clusters Expose Over 5,000 Terabytes of Data

Jun 03, 2017
Until last year, cyber criminals were only targeting computers of individuals and organisations with ransomware and holding them for ransom, but then they started targeting unprotected online databases and servers around the globe for ransom as well. Earlier this year, we saw notorious incidents where tens of thousands of unprotected MongoDB and Elasticsearch databases were hacked and held for ransom in exchange of the data the hackers had stolen and deleted from the poorly configured systems. Now, cyber crooks have started targeting unprotected Hadoop Clusters and CouchDB servers as well, making the ransomware game nastier if your servers are not securely configured. Nearly 4,500 servers with the Hadoop Distributed File System (HDFS) — the primary distributed storage used by Hadoop applications — were found exposing more than 5,000 Terabytes (5.12 Petabytes) of data, according to an analysis conducted using Shodan search engine. This exposure is due to the same issue — H...
North Korean Hackers Targeting Developers with Malicious npm Packages

North Korean Hackers Targeting Developers with Malicious npm Packages

Feb 26, 2024 Software Security / Cryptocurrency
A set of fake npm packages discovered on the Node.js repository has been found to share ties with North Korean state-sponsored actors, new findings from Phylum show. The packages are named execution-time-async, data-time-utils, login-time-utils, mongodb-connection-utils, and mongodb-execution-utils. One of the packages in question,  execution-time-async , masquerades as its legitimate counterpart  execution-time , a library with more than 27,000 weekly downloads. Execution-time is a Node.js utility used to measure execution time in code. It "actually installs several malicious scripts including a cryptocurrency and credential stealer," Phylum  said , describing the campaign as a software supply chain attack targeting developers. The package was  downloaded 302 times  since February 4, 2024, before being taken down. In an interesting twist, the threat actors made efforts to conceal the obfuscated malicious code in a test file, which is designed to fetch nex...
The Persistence Problem: Why Exposed Credentials Remain Unfixed—and How to Change That

The Persistence Problem: Why Exposed Credentials Remain Unfixed—and How to Change That

May 12, 2025 Secrets Management / DevSecOps
Detecting leaked credentials is only half the battle. The real challenge—and often the neglected half of the equation—is what happens after detection. New research from GitGuardian's State of Secrets Sprawl 2025 report reveals a disturbing trend: the vast majority of exposed company secrets discovered in public repositories remain valid for years after detection, creating an expanding attack surface that many organizations are failing to address. According to GitGuardian's analysis of exposed secrets across public GitHub repositories, an alarming percentage of credentials detected as far back as 2022 remain valid today: "Detecting a leaked secret is just the first step," says GitGuardian's research team. "The true challenge lies in swift remediation." Why Exposed Secrets Remain Valid This persistent validity suggests two troubling possibilities: either organizations are unaware their credentials have been exposed (a security visibility problem),...
⚡ Weekly Recap: MongoDB Attacks, Wallet Breaches, Android Spyware, Insider Crime & More

⚡ Weekly Recap: MongoDB Attacks, Wallet Breaches, Android Spyware, Insider Crime & More

Dec 29, 2025 Hacking News / Cybersecurity
Last week’s cyber news in 2025 was not about one big incident. It was about many small cracks opening at the same time. Tools people trust every day behave in unexpected ways. Old flaws resurfaced. New ones were used almost immediately. A common theme ran through it all in 2025. Attackers moved faster than fixes. Access meant for work, updates, or support kept getting abused. And damage did not stop when an incident was “over” — it continued to surface months or even years later. This weekly recap brings those stories together in one place. No overload, no noise. Read on to see what shaped the threat landscape in the final stretch of 2025 and what deserves your attention now. ⚡ Threat of the Week MongoDB Vulnerability Comes Under Attack — A newly disclosed security vulnerability in MongoDB has come under active exploitation in the wild, with over 87,000 potentially susceptible instances identified across the world. The vulnerability in question is CVE-2025-14847 (CVSS score: 8.7)...
Over 70,000 Memcached Servers Still Vulnerable to Remote Hacking

Over 70,000 Memcached Servers Still Vulnerable to Remote Hacking

Jul 18, 2017
Nothing in this world is fully secure, from our borders to cyberspace. I know vulnerabilities are bad, but the worst part comes in when people just don't care to apply patches on time. Late last year, Cisco's Talos intelligence and research group discovered three critical remote code execution (RCE) vulnerabilities in Memcached that exposed major websites including Facebook, Twitter, YouTube, Reddit, to hackers. Memcached is a popular open-source and easily deployable distributed caching system that allows objects to be stored in memory. The Memcached application has been designed to speed up dynamic web applications ( for example php-based websites) by reducing stress on the database that helps administrators to increase performance and scale web applications. It's been almost eight months since the Memcached developers have released patches for three critical RCE vulnerabilities (CVE-2016-8704, CVE-2016-8705 and CVE-2016-8706) but tens of thousands of servers...
Internet-Connected Teddy Bear Leaks Millions Of Voice Messages and Password

Internet-Connected Teddy Bear Leaks Millions Of Voice Messages and Password

Feb 28, 2017
Every parent should think twice before handing out Internet-connected toys or smart toys to their children, as these creepy toys pose a different sort of danger: privacy and data security risks for kids who play with them. This same incident was happened over a year ago when Hong Kong toymaker VTech was hacked , which exposed personal details, including snaps of parents and children and chat logs, of about 6.4 million children around the world. Now, in the latest security failing of the internet-connected smart toys, more than 2 Million voice recordings of children and their parents have been exposed, along with email addresses and passwords for over 820,000 user accounts. And What's even Worse? The hackers locked this data and held it for Ransom. California-based Spiral Toys' line of internet-connected stuffed animal toys, CloudPets , which allow children and relatives to send recorded voicemails back and forth, reportedly left the voice messages recorded between pare...
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