Unrated severityOSV Advisory· Published Jan 10, 2026· Updated Jan 13, 2026
CryptoLib Memory Leak on HTTP Error Response in KMC Client
CVE-2026-22025
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.
Affected products
1Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
3- github.com/nasa/CryptoLib/commit/2372efd3da1ccb226b4297222e25f41ecc84821dmitrex_refsource_MISC
- github.com/nasa/CryptoLib/releases/tag/v1.4.3mitrex_refsource_MISC
- github.com/nasa/CryptoLib/security/advisories/GHSA-h74x-vwwr-mm5gmitrex_refsource_CONFIRM
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