VulnerabilityPublished 9 Nov 2026

CVE-2026-112315: Red Hat Enterprise Linux 10 · Missing Release of Resource after Effective Lifetime

Affects Red Hat Enterprise Linux 10Source CVE Database V5

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Not known to be exploited · CVSS 5.3 Medium.

Data as of 9 Nov 2026, 20:48 UTC

CVSS 3.1 base score

5.3Medium

How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

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CVSS scores by source
CNA (redhat)	CVSS 3.1	5.3

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: None
Availability: Low

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: None: There is no loss of confidentiality within the impacted component.
Integrity: None: There is no loss of integrity within the impacted component.
Availability: Low: Performance is reduced or there are interruptions in resource availability. Even if repeated exploitation of the vulnerability is possible, the attacker does not have the ability to completely deny service to legitimate users. The resources in the impacted component are either partially available all of the time, or fully available only some of the time, but overall there is no direct, serious consequence to the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 9 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 9 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Affected software

Product	Affected	Fixed in
Red Hat Enterprise Linux 10krb5	Affected–	Fixed in–
Red Hat Enterprise Linux 6krb5	Affected–	Fixed in–
Red Hat Enterprise Linux 7krb5	Affected–	Fixed in–
Red Hat Enterprise Linux 8krb5	Affected–	Fixed in–
Red Hat Enterprise Linux 9krb5	Affected–	Fixed in–
Red Hat Hardened Imageskrb5	Affected–	Fixed in–

AI-suggested

Red Hat advises restricting network access to the kadmind service to trusted hosts only. Alternatively, disable kadmind and use the kadmin.local command-line tool for administrative operations. These mitigations reduce exposure to the vulnerability by limiting or eliminating remote access to the affected service.

Description

CVE-2026-112315 is a vulnerability in the RPCSEC_GSS authentication routines of MIT Kerberos 5 used in Red Hat Enterprise Linux 10. It causes a memory leak in the kadmind service due to failure to free partially decoded buffers on error. This can be exploited remotely by unauthenticated attackers sending crafted RPCSEC_GSS messages, leading to denial of service by resource exhaustion. The impact is limited to environments where Kerberos administrative RPC interfaces are exposed to untrusted networks.

Impact

An unauthenticated remote attacker can cause a denial of service by triggering a memory leak in the kadmind service via crafted RPCSEC_GSS messages. Each malformed request leaks a bounded amount of memory, which can cumulatively exhaust daemon memory resources, degrading service availability. This affects only environments where Kerberos administrative RPC interfaces are reachable from untrusted networks. There is no impact on confidentiality or integrity.

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What to do

Affected software

Description

AI analysisMachine-generated, updated 9 Nov 2026, 20:48 UTC

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