PT-2026-25938 · Mongodb · Mongodb C Driver

Halil Oktay · Published 2026-01-01 · Updated 2026-03-27 · CVE-2026-4359

Positive Technologies (AI Summary)

CVSS v3.1

3.7

Low

Base vector

AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

Name of the Vulnerable Software and Affected Versions MongoDB C driver (affected versions not specified)

Description A compromised third-party cloud server or a man-in-the-middle attacker could send a malformed HTTP response, leading to a crash in applications utilizing the MongoDB C driver. The issue involves a heap-buffer-over-read in the mongoc http send function, specifically due to the use of strstr on a non-null-terminated buffer.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Weakness Enumeration

CWE-158

Related Identifiers

CVE-2026-4359

OESA-2026-1742

OESA-2026-1743

OESA-2026-1744

OESA-2026-1745

OESA-2026-1746

OESA-2026-1747

Affected Products

Mongodb C Driver

References · 23

• https://jira.mongodb.org/browse/CDRIVER-6251 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2026-1743 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2026-1746 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-4359 · Security Note
• https://osv.dev/vulnerability/OESA-2026-1745 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-4359 · Security Note
• https://ubuntu.com/security/CVE-2026-4359 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-4359 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-4359 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2026-1747 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-12119 · Security Note
• https://osv.dev/vulnerability/OESA-2026-1742 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-4359 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2026-1744 · Vendor Advisory
• https://twitter.com/CVEnew/status/2034136470928118028 · Twitter Post