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CVE-2026-2968

3.7 · LOW

A vulnerability was detected in Cesanta Mongoose up to 7.20.

Published Feb 23, 2026CWE-345EPSS 0.28%

Overview

CVE-2026-2968 is a low-severity vulnerability. It was published on February 23, 2026 and has a CVSS 3.1 base score of 3.7 (LOW).

This vulnerability has a CVSS 3.1 base score of 3.7, rated LOW. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

A vulnerability was detected in Cesanta Mongoose up to 7.20. This impacts the function mg_chacha20_poly1305_decrypt of the file /src/tls_chacha20.c of the component Poly1305 Authentication Tag Handler. The manipulation results in improper verification of cryptographic signature. The attack may be launched remotely. This attack is characterized by high complexity. The exploitability is said to be difficult. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/dwBruijn/CVEs/blob/main/Mongoose/ChaCha20Poly1305.mdGitHubgithub.com/dwBruijn/CVEs/blob/main/Mongoose/ChaCha20Poly1305.md#pocRefvuldb.com/?ctiid.347335Refvuldb.com/?id.347335Refvuldb.com/?submit.757091

How CyberStrike helps

Frequently asked questions

What is CVE-2026-2968?

CVE-2026-2968 is a low-severity vulnerability. It was published on February 23, 2026 and has a CVSS 3.1 base score of 3.7 (LOW).

How severe is CVE-2026-2968?

This vulnerability has a CVSS 3.1 base score of 3.7, rated LOW. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-2968?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-2968?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-2968 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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