Vulnerability in Nasa Cryptolib
CVE-2026-22024
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.005 (39.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 39.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: +0.000
Affected products
- Nasa Cryptolib — versions < 1.4.3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/nasa/CryptoLib/security/advisories/GHSA-r3wg-g8xv-gxvf (Exploit, Vendor Advisory)
- github.com/nasa/CryptoLib/commit/2372efd3da1ccb226b4297222e25f41ecc84821d (Patch)
- github.com/nasa/CryptoLib/releases/tag/v1.4.3 (Release Notes)
Frequently asked questions
- What is CVE-2026-22024?
- CVE-2026-22024 is a medium-severity vulnerability in Nasa Cryptolib, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 5.3/10. Published 2026-01-10.
- How severe is CVE-2026-22024?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2026-22024 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.