CVE-2026-21436

Name: CVE-2026-21436
Creator: NVD / NIST
Published: 2026-01-01T18:15:41.203+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.8/10EPSS 0.26%

Last modified Jun 17, 2026

CVE-2026-21436 is a medium-severity vulnerability rated 5.8/10 on the CVSS scale. eopkg is a Solus package manager implemented in python3. In versions prior to 4.4.0, a malicious package could escape the directory set by `--destdir`. EPSS estimates a 0.26% chance of exploitation in the next 30 days.

Description

eopkg is a Solus package manager implemented in python3. In versions prior to 4.4.0, a malicious package could escape the directory set by `--destdir`. This requires the installation of a package from a malicious or compromised source. Files in such packages would not be installed in the path given by `--destdir`, but on a different location on the host. The issue has been fixed in v4.4.0. Users only installing packages from the Solus repositories are not affected.

Metrics

CVSS 3.1

5.5/10

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

CVSS 4.0

5.8/10

CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:A/VC:N/VI:H/VA:N/SC:N/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.26%

17.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-24

Affected Software

Vendor	Product	Versions
Getsol	Eopkg	< 4.4.0

References

https://github.com/getsolus/eopkg/commit/e7694323ed64e08b5b4b108fff273c64125cd39dPatch
https://github.com/getsolus/eopkg/pull/201Issue Tracking, Patch
https://github.com/getsolus/eopkg/releases/tag/v4.4.0Product, Release Notes
https://github.com/getsolus/eopkg/security/advisories/GHSA-786v-47cq-qm6mPatch, Vendor Advisory

Timeline

Published: Jan 1, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-21436?

How severe is CVE-2026-21436?

CVE-2026-21436 has a CVSS score of 5.8/10 (MEDIUM severity). The EPSS model estimates a 0.26% probability of exploitation in the next 30 days.

How do I fix CVE-2026-21436?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-21436?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST