CVE-2026-4359: low-severity vulnerability in MongoDB C Driver
Heap-buffer-over-read in _mongoc_http_send via strstr on non-null-terminated buffer
Published · Updated
8Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 2epss 0.2%
exploitation probability
0.2%top 86% of all CVEs
observed exploitation
nono source reports it
A compromised third party cloud server or man-in-the-middle attacker could send a malformed HTTP response and cause a crash in applications using the MongoDB C driver.
CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Affected products
MongoDB Inc · MongoDB C DriverRelated CVEs — MongoDB C Driver
In the same product, most dangerous first.
CVE-2023-0437MEDIUMMongoDB client C Driver may infinitely loop when validating certain BSON input dataEPSS 1.1%CVE-2021-32050MEDIUMSome MongoDB Drivers may publish events containing authentication-related data to a command listener configured by an applicationEPSS 0.6%CVE-2024-7553HIGHAccessing Untrusted Directory May Allow Local Privilege EscalationEPSS 0.3%