CVE-2026-6811 | THREATINT

Description

Stack exhaustion vulnerability in the MongoDB PHP driver can cause application crashes when processing deeply nested BSON documents in unusual circumstances when the source of these BSON documents is not MongoDB Server.

PUBLISHED Reserved 2026-04-21 | Published 2026-05-14 | Updated 2026-05-14 | Assigner mongodb

MEDIUM: 6.0CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

MEDIUM: 5.9CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Problem types

CWE-674 Uncontrolled Recursion

Product status

Default status

unaffected

1.21.5 (semver)

affected

2.1.8 (semver)

affected

References

jira.mongodb.org/browse/PHPC-2636

cve.org (CVE-2026-6811)

nvd.nist.gov (CVE-2026-6811)

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