CVE-2026-22024Public exploitNetwork attack vector

Resource exhaustion via unreleased encryption buffers

Published Jan 10, 2026 · Updated Jan 10, 2026

A memory leak in CryptoLib's KMC encryption interface before 1.4.3 allows remote attackers to exhaust memory through sustained encryption traffic. The cryptography_encrypt() function allocates roughly 400 to 500 bytes across HTTP-request and JSON-processing buffers per call but frees none on success or error paths. Reachability requires the KMC cryptography backend and repeated encryption calls; accumulation degrades performance and can end in an out-of-memory service interruption.

CVSS severity6.3
Medium
EPSS probability0.49%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A memory leak in CryptoLib's KMC encryption interface before 1.4.3 allows remote attackers to exhaust memory through sustained encryption traffic. The cryptography_encrypt() function allocates roughly 400 to 500 bytes across HTTP-request and JSON-processing buffers per call but frees none on success or error paths. Reachability requires the KMC cryptography backend and repeated encryption calls; accumulation degrades performance and can end in an out-of-memory service interruption.

The record

CVE
CVE-2026-22024
Published
Jan 10, 2026
Updated
Jan 10, 2026
Vendor
NASA AMMOS
Product
CryptoLib
Classifications
CWE-401, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.4.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

NASA AMMOS · CryptoLibversion=< 1.4.3

Published CVSS scores

6.3GitHubCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
5.3NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-401Missing Release of Memory after Effective Lifetime
T1499Endpoint Denial of Service

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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