There are 3 open security issues in bullseye.
1 important issue:
- CVE-2026-78323:
A flaw was found in JSS (Java Security Services). The JSSTrustManager class does not verify NSS trust flags when validating CA certificates, allowing certificates present in the NSS database without TRUSTED_CA flags to be accepted as trust anchors for TLS connections. In non-default configurations where certificate revocation checking is disabled, this could allow a man-in-the-middle attacker to forge certificates accepted by PKI client connections.
2 issues postponed or untriaged:
- CVE-2021-4213:
(needs triaging)
A flaw was found in JSS, where it did not properly free up all memory. Over time, the wasted memory builds up in the server memory, saturating the server’s RAM. This flaw allows an attacker to force the invocation of an out-of-memory process, causing a denial of service.
- CVE-2022-4132:
(needs triaging)
A flaw was found in JSS. A memory leak in JSS requires non-standard configuration but is a low-effort DoS vector if configured that way (repeatedly hitting the login page).
![[bug history graph]](https://qa.debian.org/data/bts/graphs/j/jss.png){kind=link}