CVE-2026-84968

EUVD-2026-70644
An out-of-bounds read in the BSON decoding component of the MongoDB PHP driver may allow an unauthenticated party who supplies specially formed input to have a small amount of adjacent process memory copied into an error message that is returned to application code. This may result in unintended disclosure of limited memory contents.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.3 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 8.85%
Affected Products (NVD)
VendorProductVersion
mongodbphp_driver
1.15.0 ≤
𝑥
< 1.21.9
mongodbphp_driver
2.0.0 ≤
𝑥
< 2.1.9
mongodbphp_driver
2.2.0 ≤
𝑥
< 2.5.2
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
php-mongodb
bookworm
postponed
forky
2.5.3-1
fixed
sid
2.5.3-1
fixed
trixie
vulnerable
trixie (security)
2.0.0-1+deb13u1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
php-mongodb
bionic
needs-triage
focal
needs-triage
jammy
needs-triage
noble
needs-triage
resolute
needs-triage
xenial
needs-triage
Common Weakness Enumeration
References
https://jira.mongodb.org/browse/PHPC-2744