CVE-2026-8053

highpriority · track · 0EPSS 0.007 · 51 %ileDEEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.66% (51st) EPSS

CVSS 8.8 · high

Is it mine?

42 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

An issue in MongoDB Server's time-series collection implementation allows an authenticated user with database write privileges to trigger an out-of-bounds memory write in the mongod process. The issue results from an inconsistency in the internal field-name-to-index mapping within the time-series bucket catalog. Under certain conditions this can result in arbitrary code execution. This issue impacts MongoDB Server v5.0 versions prior to 5.0.33, v6.0 versions prior to 6.0.28, v7.0 versions prior to 7.0.34, v8.0 versions prior to 8.0.23, v8.2 versions prior to 8.2.9 and v8.3 versions prior to 8.3.2.

cvss

Technical severity, 0–10. One row per scoring source.

8.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.3–8.8

v3.18.8highAV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · cna@mongodb.comexploitability 2.8 · impact 5.9

v4.08.7highCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:Nsecondary · ENISA EU

v4.08.7highCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/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:Xsecondary · cna@mongodb.com

v4.06.3mediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/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:Xsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-787USCWE-787US

affected products (42)

Products and version ranges known to be affected.

Open Source MongoDB <7.0.34all versionscert_bundDE
Open Source MongoDB <8.0.23all versionscert_bundDE
Open Source MongoDB <8.2.9all versionscert_bundDE
Open Source MongoDB <8.3.2all versionscert_bundDE
Splunk Splunk Enterprise <10.0.8all versionscert_bundDE
Splunk Splunk Enterprise <10.2.5all versionscert_bundDE
Splunk Splunk Enterprise <10.4.1all versionscert_bundDE
Splunk Splunk Enterprise <9.4.13all versionscert_bundDE
Open Source MongoDB< 7.0.34cert_bundDE
Open Source MongoDB< 8.0.23cert_bundDE
Open Source MongoDB< 8.2.9cert_bundDE
Open Source MongoDB< 8.3.2cert_bundDE
Splunk Splunk Enterprise< 10.0.8cert_bundDE
Splunk Splunk Enterprise< 10.2.5cert_bundDE
Splunk Splunk Enterprise< 10.4.1cert_bundDE
Splunk Splunk Enterprise< 9.4.13cert_bundDE
MongoDB, Inc. MongoDB Server5.0 → 5.0.33enisa_euvdEU
MongoDB, Inc. MongoDB Server6.0 → 6.0.28enisa_euvdEU
MongoDB, Inc. MongoDB Server7.0 → 7.0.34enisa_euvdEU
MongoDB, Inc. MongoDB Server8.0 → 8.0.23enisa_euvdEU

showing 20 of 42

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-1516MongoDB: Mehrere SchwachstellenDeutsch2026-05-12csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in MongoDB ausnutzen, um beliebigen Programmcode auszuführen, Daten zu manipulieren, vertrauliche Informationen offenzulegen oder einen Denial-of-Service-Zustand zu verursachen.
BIT-mongodb-2026-8053FlatBSON Duplicate Field Index Drift2026-05-19vendor · osvUS
An issue in MongoDB Server's time-series collection implementation allows an authenticated user with database write privileges to trigger an out-of-bounds memory write in the mongod process. The issue results from an inconsistency in the internal field-name-to-index mapping within the time-series bucket catalog. Under certain conditions this can result in arbitrary code execution. This issue impacts MongoDB Server v5.0 versions prior to 5.0.33, v6.0 versions prior to 6.0.28, v7.0 versions prior to 7.0.34, v8.0 versions prior to 8.0.23, v8.2 versions prior to 8.2.9 and v8.3 versions prior to 8.3.2.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund osv NVD CVE.org MITRE

published 2026-05-13modified 2026-10-26

references (5)

External citations — patches, advisories, analysis.

scry

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