CVE-2019-11253

unknown

Published 2021-05-18 · Modified 2026-02-04

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CVSS v3

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

CVSS v4 NEW

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not yet in upstream

VIR risk

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Description

Improper input validation in the Kubernetes API server in versions v1.0-1.12 and versions prior to v1.13.12, v1.14.8, v1.15.5, and v1.16.2 allows authorized users to send malicious YAML or JSON payloads, causing the API server to consume excessive CPU or memory, potentially crashing and becoming unavailable. Prior to v1.14.0, default RBAC policy authorized anonymous users to submit requests that could trigger this vulnerability. Clusters upgraded from a version prior to v1.14.0 keep the more permissive policy by default for backwards compatibility.

Predictions

Exploit likelihood

30%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

SUSE Affected 1 release

Version	Status	Fixed in
—	Affected	—

Debian Fixed 5 releases

Version	Status	Fixed in
trixie	Fixed	`1.17.4-1`
sid	Fixed	`1.17.4-1`
forky	Fixed	`1.17.4-1`
bullseye	Fixed	`1.17.4-1`
bookworm	Fixed	`1.17.4-1`

Package impact

Ecosystem	Package	Vulnerable	Fixed
Go	k8s.io/kubernetes	`>=1.0.0,<1.13.12`	`1.13.12`
Go	k8s.io/kubernetes	`>=1.14.0,<1.14.8`	`1.14.8`
Go	k8s.io/kubernetes	`>=1.15.0,<1.15.5`	`1.15.5`
Go	k8s.io/kubernetes	`>=1.16.0,<1.16.2`	`1.16.2`

References

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.