CVE-2026-21898

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, the Crypto_AOS_ProcessSecurity function reads memory without valid bounds checking when parsing AOS frame hashes. This issue has been patched in version 1.4.3.

PUBLISHED Reserved 2026-01-05 | Published 2026-01-10 | Updated 2026-01-12 | Assigner GitHub_M

Problem types

CWE-125: Out-of-bounds Read

Product status

References

github.com/...ptoLib/security/advisories/GHSA-7ch6-2pmg-m853 exploit

github.com/...ptoLib/security/advisories/GHSA-7ch6-2pmg-m853

github.com/nasa/CryptoLib/releases/tag/v1.4.3

cve.org (CVE-2026-21898)

nvd.nist.gov (CVE-2026-21898)

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