CVE-2026-78323CWE-295

CVE-2026-78323

Medium · published August 24, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
6.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00176 · 6.8th percentile
Weakness
CWE-295 · Improper Certificate Validation
Published
2026-08-24T16:16Z
References (2)
https://access.redhat.com/security/cve/CVE-2026-78323 · [email protected]https://bugzilla.redhat.com/show_bug.cgi?id=2521775 · [email protected]
EPSS history
Timeline
  • 26 AUG 08:27Z
    EPSS moved — → 0%
    epss
  • 24 AUG 11:11Z
    Jss: jss: jsstrustmanager does not verify nss trust flags on ca certificates
    cvelistv5