High 8.2Published Jan 9, 2026

CVE-2026-22023CryptoLib Has Out-of-Bounds Read in KMC AEAD Encrypt Metadata Parsing via Flawed strtok Pattern

Updated under an hour ago (Oct 27, 2026, 2:10 PM ET)

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It affects nasa CryptoLib. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for nasa CryptoLib

Exploited in the last 30 days

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, there is an out-of-bounds heap read vulnerability in cryptography_aead_encrypt(). This issue has been patched in version 1.4.3.

CVSS: 8.2 HIGH (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Weakness (CWE): CWE-125
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Jan 13, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

nasa CryptoLib nasa:cryptolib (from the name)	before 1.4.3	CNA record
nasa cryptolib nasa:cryptolib	before 1.4.3	NVD

References

References

https://github.com/nasa/CryptoLib/security/advisories/GHSA-8w3h-q8jm-3chq	x-refsource-confirm, exploit, vendor-advisory
https://github.com/nasa/CryptoLib/commit/2372efd3da1ccb226b4297222e25f41ecc84821d	x-refsource-misc, patch
https://github.com/nasa/CryptoLib/releases/tag/v1.4.3	x-refsource-misc, release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.