---
id: "CVE-2026-112315"
page: "https://infrastack.ai/live/CVE-2026-112315"
kind: "vulnerability"
aliases: ["CVE-2026-112315"]
title: "MIT Kerberos: crafted RPC messages leak memory and can crash kadmind"
severity: "medium"
cvss: 5.3
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["kadmind", "kerberos", "krb5", "linux", "package"]
not_affected_if: ["kadmind-not-running", "no-network-exposure"]
published_at: "2026-11-09T19:16:40+00:00"
first_seen_at: "2026-11-09T19:28:13+00:00"
updated_at: "2026-11-09T19:32:12+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-112315", "first_seen_at": "2026-11-09T19:28:13+00:00"}]
exploit_sources: []
---

# MIT Kerberos: crafted RPC messages leak memory and can crash kadmind

Link for people: https://infrastack.ai/live/CVE-2026-112315 (this .md is for agents)

MIT Kerberos 5 (krb5) 1.4 and later fail to free partially decoded buffers in the RPCSEC_GSS authentication code. A remote attacker sending crafted RPCSEC_GSS messages can cause a memory leak in kadmind, leading to denial of service.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed krb5 version with `klist --version` or `kadmind -version` where available
- Confirm whether `kadmind` is running on the host and reachable from the network

## Timeline

- 2026-11-09T19:28:13+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-112315

## From the sources

The RPCSEC_GSS authentication routines in lib/rpc/authgss_prot.c in MIT Kerberos 5 (aka krb5) 1.4 and later do not free partially decoded buffers on failure, which allows remote attackers to cause a denial of service (memory leak in kadmind) via crafted RPCSEC_GSS messages.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_