CVE-2026-22025

Low

Description

CryptoLib provides a software-only solution using the CCSDS Space Data Link Security Protocol - Extended Procedures (SDLS-EP) to secure communications between a spacecraft running the core Flight System (cFS) and a ground station. Prior to version 1.4.3, when the KMC server returns a non-200 HTTP status code, cryptography_encrypt() and cryptography_decrypt() return immediately without freeing previously allocated buffers. Each failed request leaks approximately 467 bytes. Repeated failures (from a malicious server or network issues) can gradually exhaust memory. This issue has been patched in version 1.4.3.

SeverityLow

CVSS3.7

Exploit probability—

ProductNasa Cryptolib

PublishedJan 10, 2026

First seenJan 10, 2026

Weakness typeCWE-401CWE-401 CWE-770Allocation of resources without limits

How to fix

Update

nasa cryptolib1.4.3 or later

Affected products

Product	Affected versions	Fixed in
nasa cryptolib	v < 1.4.3	1.4.3

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