CVE-2026-21444

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Source
https://cve.org/CVERecord?id=CVE-2026-21444
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-21444.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-21444
Aliases
  • GHSA-7jxr-4j3g-p34f
Downstream
Published
2026-01-02T19:05:31.503Z
Modified
2026-03-01T02:55:41.931627Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
libtpms returns wrong initialization vector when certain symmetric ciphers are used
Details

libtpms, a library that provides software emulation of a Trusted Platform Module, has a flaw in versions 0.10.0 and 0.10.1. The commonly used integration of libtpms with OpenSSL 3.x contained a vulnerability related to the returned IV (initialization vector) when certain symmetric ciphers were used. Instead of returning the last IV it returned the initial IV to the caller, thus weakening the subsequent encryption and decryption steps. The highest threat from this vulnerability is to data confidentiality. Version 0.10.2 fixes the issue. No known workarounds are available.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-327",
        "CWE-330"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/21xxx/CVE-2026-21444.json"
}
References

Affected packages

Git / github.com/stefanberger/libtpms

Affected ranges

Type
GIT
Repo
https://github.com/stefanberger/libtpms
Events
Introduced
17f253a767f6b5b7813ae33f12bc79c479576cdc
Fixed
03ff2481e133540be3b3ffe3daa1483d2a73d967

Affected versions

v0.*
v0.10.0
v0.10.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-21444.json"