🛡️ CVE-2026-4359 — c-driver

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is high, an attacker needs administrative privileges on the target. A user must be tricked into taking some action. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability low.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:N/A:L

• Attack vector: Network — reachable from anywhere that can route to the service.
• Attack complexity: High — the attacker first has to win a race, learn a secret or otherwise prepare the target.
• Privileges required: High — administrative rights are needed first.
• User interaction: Required — someone has to click, open or visit something.
• Scope: Unchanged — the damage stays inside the vulnerable component.
• Confidentiality impact: None.
• Integrity impact: None.
• Availability impact: Low — limited, and the attacker does not choose what is affected.

Weakness class

CVE-2026-4359 is classified as CWE-158: Improper Neutralization of Null Byte or NUL Character. The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes NUL characters or null bytes when they are sent to a downstream component.

Affected software

CVE-2026-4359 is recorded against 1 package.

• c-driver (from 2.2.0 up to 2.2.3)

Timeline and source

Published on 17 March 2026 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

jira.mongodb.org

Other advisories for this package

c-driver has other advisories on record. If you are patching this one, these are worth checking on the same host:

• CVE-2026-6691 (7.8 High, published 6 May 2026)
• CVE-2026-6231 (4.3 Medium, published 13 Apr 2026)
• CVE-2025-12119 (6.8 Medium, published 18 Nov 2025)
• CVE-2024-7553 (7.3 High, published 7 Aug 2024)
• CVE-2023-0437 (5.3 Medium, published 12 Jan 2024)

Same weakness in other software

These advisories are the same class of weakness (CWE-158: Improper Neutralization of Null Byte or NUL Character) in other software:

• CVE-2026-70603 (published 5 Aug 2026)
• CVE-2026-47778 (5.0 Medium, published 30 Jun 2026)
• CVE-2026-41256 (5.5 Medium, published 11 May 2026)
• CVE-2026-43861 (3.7 Low, published 4 May 2026)
• CVE-2026-43859 (3.7 Low, published 4 May 2026)
• CVE-2026-23863 (6.5 Medium, published 1 May 2026)
• CVE-2026-33191 (8.6 High, published 20 Mar 2026)
• CVE-2026-28540 (4.0 Medium, published 5 Mar 2026)

CVE-2026-4359 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Affected Packages

References