CVE-2026-21444

Name
CVE-2026-21444
Description
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.
NVD Severity
medium
Other trackers
Mailing lists
Exploits
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
MISC https://github.com/stefanberger/libtpms/commit/33c9ff074cb16c1841ce7d7f33643c17c426743a
MISC https://github.com/stefanberger/libtpms/issues/541
CONFIRM https://github.com/stefanberger/libtpms/security/advisories/GHSA-7jxr-4j3g-p34f

Match rules

CPE URI Source package Min version Max version
libtpms >= 0.10.0 < 0.10.2

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
libtpms edge-community 0.10.1-r0 Jonas <spameier+alpine@proton.me> possibly vulnerable
libtpms edge-community 0.10.0-r1 Jonas <spameier+alpine@proton.me> possibly vulnerable
libtpms edge-community 0.10.0-r0 Jonas <3426-spameier@users.gitlab.alpinelinux.org> possibly vulnerable
libtpms 3.23-community 0.10.1-r0 Jonas <spameier+alpine@proton.me> possibly vulnerable