HighCVE-2026-115930

    MongoDB Mongosh: Improper Certificate Validation (CVE-2026-115930)

    Published Last modified Sources: pwn.watch, CVE.org

    What is affected, what to do

    The MongoDB Shell (mongosh) relies on Node.js as a third-party runtime that carries its own TLS root certificate store. This certificate store has the recoverable eMudhra intermediate CA certificates.

    Update MongoDB Mongosh to version 2.14.0.

    Affected
    • MongoDB Mongosh lt *..2.14.0
    Fixed in
    • MongoDB Mongosh 2.14.0

    Not sure whether and how you are affected? Ask a question about this vulnerability

    Metrics

    7.6

    Priority

    XIEM Effective CVSS: highest available CVSS rating from NVD and vendor data.

    Source: Vendor (CNA), CVSS v4

    6.8

    CVSS v3

    Severity Medium on the scale from 0 to 10.

    Source: pwn.watch, CVE.org

    0.1 %

    EPSS score

    Low — model estimates < 1% exploitation likelihood.

    Source: FIRST EPSS, percentile 3.7

    Show all metrics
    Severity
    High
    Priority (0–325)

    The priority score is a consolidated metric that condenses several individual signals into a single, action-guiding ranking: technical severity (CVSS), exploitation likelihood (EPSS), known-exploited status (KEV) and the context of the affected asset. The aim is to answer the only truly important question in vulnerability management: what first?

    Read in glossary
    68.11 Methodology
    Exploit maturity

    An exploit is code or a technique that specifically uses a concrete vulnerability to force unintended behaviour — such as executing code or escalating privileges. It is the tool that turns a theoretical flaw into a practical attack.

    Read in glossary
    no public PoC known
    XIEM Effective CVSS

    XIEM® is the tiered managed-security operating model from NEOSEC and a registered trademark of NEOSEC GmbH. It extends classic SIEM — the central collection, normalisation and correlation of security-relevant events — with endpoint forensics, network visibility and deception technology, and consolidates them into three building tiers: Sentry, Orchestrate and Command.

    Read in glossary
    7.6 Methodology
    CVSS v3

    CVSS is the globally established, open standard for assessing the technical severity of a vulnerability on a scale from 0 to 10. It describes how easily a flaw can be exploited and what damage it can cause — but not how likely its actual exploitation is. CVSS and the complementary EPSS deliberately answer different questions.

    Read in glossary
    6.8
    CVSS v4

    CVSS is the globally established, open standard for assessing the technical severity of a vulnerability on a scale from 0 to 10. It describes how easily a flaw can be exploited and what damage it can cause — but not how likely its actual exploitation is. CVSS and the complementary EPSS deliberately answer different questions.

    Read in glossary
    7.6
    EPSS score

    The EPSS score is the absolute model output for an individual vulnerability: the estimated probability of real-world exploitation within the next 30 days, expressed as a value between 0 and 1 (i.e. 0 % to 100 %). A score of 0.42 means „the model estimates a 42 % chance of real-world exploitation within 30 days“.

    Read in glossary
    0.1 %
    Low — model estimates < 1% exploitation likelihood.
    EPSS percentile

    The EPSS percentile is the relative position of a vulnerability within all EPSS-scored CVEs, expressed as a value between 0 and 1. A percentile of 0.90 means „this CVE has a higher EPSS score than 90 % of all other scored CVEs“. Unlike the EPSS score, it is not a probability — but a positioning within a ranking.

    Read in glossary
    3.7
    Low — this CVE sits in the lower 10% of all CVEs scored today.
    KEV status

    The KEV catalogue is a list maintained by the US authority CISA of vulnerabilities for which active exploitation in the wild has been confirmed. It answers not the question „how severe?“ but „is it already being attacked?“ — thereby sharply prioritising patching.

    Read in glossary
    —
    Published
    CWE

    CWE is a catalogue of typical weakness types in software and hardware — such as flawed input validation, unsafe memory handling or poor authentication. Where a CVE names a concrete vulnerability in a concrete product, a CWE describes the underlying class of defect.

    Read in glossary
    CWE-295

    Detection rules

    No NEOSEC detection rule is available for this vulnerability yet.

    Classification under NIS2 and CRA

    Rule-based classification from exploitation status and severity. It does not replace a case-by-case assessment.

    NIS2

    NIS2 is EU Directive (EU) 2022/2555 to raise the level of cybersecurity across the Union. It substantially broadens obligations compared with the first NIS directive: more sectors, mandatory risk management, staged reporting duties and personal accountability of senior management.

    Read in glossary
    High technical severity: assess and remediate the vulnerability in vulnerability handling under Art. 21(2)(e) NIS2 and document the decision.
    CRA

    The CRA is EU Regulation (EU) 2024/2847 setting horizontal cybersecurity requirements for „products with digital elements“ — from industrial controllers and software to connected consumer devices. For the first time manufacturers must ensure security across the entire product lifecycle, handle vulnerabilities and provide security updates.

    Read in glossary
    From 11.12.2027, Annex I Part II CRA requires manufacturers of affected products with digital elements to handle vulnerabilities without delay and provide security updates.
    ISO/IEC 27001

    ISO/IEC 27001 is the internationally leading standard for an information security management system (ISMS). It describes a risk-based, process-oriented framework to systematically plan, implement, review and improve information security.

    Read in glossary
    Control A.8.8, management of technical vulnerabilities: assess relevance to your systems, plan remediation and keep evidence.

    Description

    The MongoDB Shell (mongosh) relies on Node.js as a third-party runtime that carries its own TLS root certificate store. This certificate store has the recoverable eMudhra intermediate CA certificates. This issue impacts MongoDB Shell (mongosh) versions prior to 2.14.0 and can be resolved by updating to mongosh 2.14.0 which bundles Node.js 24.22.1 or later. If mongosh is installed through npm, it uses the Node.js runtime installed on the host; update that runtime separately.

    Source: pwn.watch, NVD (NIST), cvelistv5, CVE.org (MITRE)

    Affected products

    The following versions are affected. Older releases of the same product line are also vulnerable unless stated otherwise.

    Affected products
    Affected versionsFixed in
    MongoDB, Inc.mongosh
    • < 2.14.0
    • 2.14.0

    Vendors and products

    Weakness classes (CWE)

    • CWE-295Improper Certificate Validation

      Base

      The product does not validate, or incorrectly validates, a certificate.

      Entry at MITRE CWE-295

    References & sources

    • pwn.watchpwn.watch: eMudhra intermediate CA private keys compromisedpwn-watch
    • NVD (NIST)CVE-2026-115930: MongoDB Shell (mongosh) trusts recoverable eMudhra intermediate CAspwn-watch
    • mongodb.comMongoDB Shell changelogpwn-watch
    • github.comIncident Report 2026-10-26: eMudhra CA Compromisepwn-watch
    • github.comWeb3Signer security notice: eMudhra CA compromisepwn-watch
    • hackmd.ioTeku operator note on the eMudhra CA incidentpwn-watch
    • blog.python.orgPython 3.15.2, 3.14.10, 3.13.18, 3.12.16 and 3.11.18 are outpwn-watch
    • keytos.ioeMudhra CA Key Compromise Explained: What Happened, Who's Affected, and What to Dopwn-watch
    • tensorust.comeMudhra revoked certificates: 403 India gov sites still serve thempwn-watch
    • indiatoday.ineMudhra apologises over weak crypto keys, announces expert review to address security concernspwn-watch
    • support.apple.comAbout the compromised eMudhra intermediate CAspwn-watch
    • sec.cloudapps.cisco.comCisco Informational for Emergency Distrust of eMudhra Root and Intermediate Certificate Authoritiespwn-watch
    • cert-in.org.inCERT-In advisory CIAD-2026-0050: Compromise of eMudhra Intermediate CA Certificatespwn-watch
    • aws.amazon.comAWS security bulletin 2026-150-AWS: CVE-2026-111943, eMudhra intermediate CA key recovery in AWS trust bundlespwn-watch
    • github.comGHSA-frr6-h895-5pxp: Dart/Flutter apps trust compromised eMudhra intermediates (fixed in Dart 3.13.7, Flutter 3.47.8)pwn-watch
    • github.comDatadog Agent 7.84.5 and 7.84.6 release notes (reject compromised eMudhra intermediate keys, including in embedded Python on Windows)pwn-watch
    • mozilla.orgFirefox 158.0.1 release notes (updated OneCRL block list for eMudhra intermediates)pwn-watch
    • blog.googleProtecting Chrome and Android Users from Compromised eMudhra Intermediate CA Certificatespwn-watch
    • bugzilla.mozilla.orgBug 2083449 - eMudhra: Private key compromise of Intermediate Certificatespwn-watch
    • news.ycombinator.comeMudhra ignored Mozilla Root investigation deadline; blames social mediapwn-watch

    Changes to this CVE

    Who changed this CVE and when: NVD (analysis, affected products, CVSS), the CVE publisher (CNA) and additional providers such as CISA (ADP).

    1. ReceivedMongoDB

      CVSS V4.0: AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

      CVSS V3.1: AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

      Weakness type: CWE-295

      Description added or changed

      Show 6 original changes
      Individual changes of this event as published by NVD
      TypeActionBeforeAfter
      Descriptionadded
      —
      The MongoDB Shell (mongosh) relies on Node.js as a third-party runtime that carries its own TLS root certificate store. This certificate store has the recoverable eMudhra intermediate CA certificates. This issue impacts MongoDB Shell (mongosh) versions prior to 2.14.0 and can be resolved by updating to mongosh 2.14.0 which bundles Node.js 24.22.1 or later. If mongosh is installed through npm, it uses the Node.js runtime installed on the host; update that runtime separately.
      CVSSadded
      —
      AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/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
      CVSSadded
      —
      AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
      Weakness type (CWE)added
      —
      CWE-295
      Affected versions (publisher)added
      —
      New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/115xxx/CVE-2026-115930.json">CVE-2026-115930</a>
      Referenceadded
      —
      https://www.mongodb.com/docs/mongodb-shell/changelog/

      Source identifier: cna@mongodb.com

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