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, an out-of-bounds heap read vulnerability in cryptography_encrypt() occurs when parsing JSON metadata from KMC server responses. The flawed strtok iteration pattern uses ptr + strlen(ptr) + 1 which reads one byte past allocated buffer boundaries when processing short or malformed metadata strings. This issue has been patched in version 1.4.3.

INFO

Published Date :

2026-01-10T00:14:33.782Z

Last Modified :

2026-01-10T00:14:33.782Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-21900 vulnerability.

Vendors Products
Nasa
  • Cryptolib

CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
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