CVE-2026-22025
Each failed request leaks approximately 467 bytes.
Does this matter?
Lower severity and a low EPSS score (0.55%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 4.0
- 6.3 MEDIUMCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.55% probability · 44th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-401, CWE-770
- Affected
- nasa/cryptolib
- Source
- security-advisories@github.com
References
- https://github.com/nasa/CryptoLib/commit/2372efd3da1ccb226b4297222e25f41ecc84821dPatch
- https://github.com/nasa/CryptoLib/releases/tag/v1.4.3Release Notes
- https://github.com/nasa/CryptoLib/security/advisories/GHSA-h74x-vwwr-mm5gExploit, Vendor Advisory
- https://github.com/nasa/CryptoLib/security/advisories/GHSA-h74x-vwwr-mm5gExploit, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.