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CVE-2026-22024

CryptoLib Memory Leak in KMC Encrypt Function Leads to Resource Exhaustion

Published: Jan 10, 2026Updated: Jan 16, 2026 Sources: CVE List NVDCWE-401
NVD MITRE
5.3CVSSMEDIUM
EPSS Score
0.4%
Top 65.7%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available

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 cryptography_encrypt() function allocates multiple buffers for HTTP requests and JSON parsing that are never freed on any code path. Each call leaks approximately 400 bytes of memory. Sustained traffic can gradually exhaust available memory. This issue has been patched in version 1.4.3.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:LAvailability
Low
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Weaknesses

CWE-401

Affected Products

CryptoLibnasa
cryptolibnasa

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

References

https://github.com/nasa/CryptoLib/security/advisories/GHSA-r3wg-g8xv-gxvf
github.com
https://github.com/nasa/CryptoLib/commit/2372efd3da1ccb226b4297222e25f41ecc84821d
github.com
https://github.com/nasa/CryptoLib/releases/tag/v1.4.3
github.com

Timeline

Published
Jan 10, 2026
Last Updated
Jan 16, 2026

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