HIGH7.5

PYSEC-2026-687

Nicotine+ DoS on Null Character in Download Request

Quick fix

PYSEC-2026-687 — nicotine-plus: upgrade to the fixed version with the command below.

pip install --upgrade 'nicotine-plus>=3.2.1'

Details

Denial of service (DoS) vulnerability in Nicotine+ starting with version 3.0.3 and prior to version 3.2.1 allows a user with a modified Soulseek client to crash Nicotine+ by sending a file download request with a file path containing a null character.

Are you affected?

Enter the version of the package you're using.

Affected packages

PyPI/nicotine-plus

Introduced in: 3.0.3Fixed in: 3.2.1

Fixpip install --upgrade 'nicotine-plus>=3.2.1'

References

https://nvd.nist.gov/vuln/detail/CVE-2021-45848[ADVISORY]
https://github.com/nicotine-plus/nicotine-plus/issues/1777[WEB]
https://github.com/nicotine-plus/nicotine-plus/commit/0e3e2fac27a518f0a84330f1ddf1193424522045[WEB]
https://github.com/nicotine-plus/nicotine-plus[PACKAGE]
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HWYV53KERFH2EC4XI2IVVQFTV75E5XM6[WEB]
https://security.gentoo.org/glsa/202210-20[WEB]
https://pypi.org/project/nicotine-plus[PACKAGE]
https://github.com/advisories/GHSA-p4v2-r99v-wjc2[ADVISORY]