How severe is CVE-2026-8053?

CVE-2026-8053 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-8053 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-8053?

CVE-2026-8053 affects Mongodb. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-8053?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-8053 have an EU (EUVD) identifier?

Yes. CVE-2026-8053 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29888.

When was CVE-2026-8053 published?

CVE-2026-8053 was published on 2026-05-13 and last updated on 2026-06-17.

CVE-2026-8053

CVE-2026-8053 is a high-severity vulnerability in Mongodb with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v4: 8.7
EPSS exploit prediction: 1% (43rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-29888
Weakness: CWE-787
Affected product: Mongodb
Published: 2026-05-13
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2026-8053?: 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.
How severe is CVE-2026-8053?: CVE-2026-8053 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-8053 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-8053?: CVE-2026-8053 affects Mongodb. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-8053?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-8053 have an EU (EUVD) identifier?: Yes. CVE-2026-8053 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29888.
When was CVE-2026-8053 published?: CVE-2026-8053 was published on 2026-05-13 and last updated on 2026-06-17.

References

https://jira.mongodb.org/browse/SERVER-126021

Affected products (1)

cpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:*

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Threat intelligence

Threat-intel indicators referencing this CVE:

161.97.123.14 (ipv4-addr)