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 libcurl write_callback function in the KMC crypto service client allows unbounded memory growth by reallocating response buffers without any size limit or overflow check. A malicious KMC server can return arbitrarily large HTTP responses, forcing the client to allocate excessive memory until the process is terminated by the OS. This issue has been patched in version 1.4.3.
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Affected Vendors & Products
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History
Fri, 16 Jan 2026 16:45:00 +0000
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| CPEs | cpe:2.3:a:nasa:cryptolib:*:*:*:*:*:*:*:* | |
| Metrics |
cvssV3_1
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Tue, 13 Jan 2026 22:15:00 +0000
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ssvc
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Mon, 12 Jan 2026 14:45:00 +0000
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| First Time appeared |
Nasa
Nasa cryptolib |
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| Vendors & Products |
Nasa
Nasa cryptolib |
Sat, 10 Jan 2026 00:45:00 +0000
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| 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 libcurl write_callback function in the KMC crypto service client allows unbounded memory growth by reallocating response buffers without any size limit or overflow check. A malicious KMC server can return arbitrarily large HTTP responses, forcing the client to allocate excessive memory until the process is terminated by the OS. This issue has been patched in version 1.4.3. | |
| Title | CryptoLib Unbounded Memory Allocation in KMC HTTP Response Handler Allows Resource Exhaustion | |
| Weaknesses | CWE-789 | |
| References |
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| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-01-10T00:22:35.480Z
Updated: 2026-01-13T21:47:52.666Z
Reserved: 2026-01-05T22:30:38.718Z
Link: CVE-2026-22026
Updated: 2026-01-13T21:47:41.811Z
Status : Analyzed
Published: 2026-01-10T01:16:18.843
Modified: 2026-01-16T16:43:52.067
Link: CVE-2026-22026
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