| Name | CVE-2026-73064 |
| Description | In Mbed TLS 3.2.0 though 3.6.6 and 4.0.0 through 4.1.0, an attacker who can cause an entropy source to fail can remove or inject bytes into the start of the TLS stream. This only affects TLS 1.3 servers. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| mbedtls (PTS) | bookworm | 2.28.3-1 | vulnerable |
| trixie | 3.6.6-0.1~deb13u1 | vulnerable |
| forky, sid | 3.6.7-3 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| mbedtls | source | bookworm | (unfixed) | end-of-life | | |
| mbedtls | source | (unstable) | 3.6.7-1 | | | |
Notes
[trixie] - mbedtls <no-dsa> (Minor issue)
[bookworm] - mbedtls <end-of-life> (EOL in bookworm LTS)
https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2026-07-random-generator-fault-tls-integrity/