Quick answers
- Is CVE-2026-112315 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-112315 being exploited in the wild.
- How severe is CVE-2026-112315?
- Medium severity, with a CVSS score of 5.3, published 9 November 2026.
- Which products and versions are affected?
- Mit Kerberos 5 1.4 and later.
- Is there a fix for CVE-2026-112315?
- No fixed version is recorded yet. Restrict network access to kadmind and iprop services to trusted hosts only, or disable kadmind in favor of the kadmin.local server-side command-line tool for administration operations if possible. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-112315 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-112315?
- Check whether you run Mit Kerberos 5 at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
Restrict network access to kadmind and iprop services to trusted hosts only, or disable kadmind in favor of the kadmin.local server-side command-line tool for administration operations if possible.
Technical details
The RPCSEC_GSS authentication routines in lib/rpc/authgss_prot.c fail to free partially decoded buffers when processing fails, leading to a memory leak (CWE-772). An unauthenticated remote attacker can send crafted RPCSEC_GSS messages over the network to kadmind or other administrative RPC services, causing bounded memory leaks per request; persistent traffic gradually depletes daemon memory and causes denial of service.
Affected products
- MIT Kerberos 5 1.4 and later
Timeline
- 2026-11-09: disclosed