Is CVE-2026-59890 in the CISA KEV catalog?

No. CVE-2026-59890 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-59890?

CVE-2026-59890 has a CVSS v3 base score of 6.1 (Moderate).

What is the EPSS score for CVE-2026-59890?

CVE-2026-59890 has an EPSS score of 0.29% (21th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-59890?

Upgrade python on rhel 8 to setuptools-main@noarch or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2026-59890

MEDIUM

6.1

CVSS v3

NVD

Description

setuptools is a package that allows users to download, build, install, upgrade, and uninstall Python packages. Prior to 83.0.0, FileList applied MANIFEST.in exclude, global-exclude, recursive-exclude, and prune directives by matching compiled glob patterns against on-disk file names without Unicode normalization, so on macOS APFS or HFS+ an NFD file name could bypass an NFC exclusion rule and be packed into a source distribution. This issue is fixed in version 83.0.0.

CWE-176 CWE-697

How to fix

Remediation Available

pythonRed Hat / RHEL

Fixed in:setuptools-main@noarchRHSA-2026:37530

Fixed in:setuptools-main@srcRHSA-2026:37530

pythonRocky

Fixed in:setuptools-main@noarchRHSA-2026:37530

Fixed in:setuptools-main@srcRHSA-2026:37530

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

0.29%probability of exploitation in 30 days

21stpercentile

Low risk: more likely to be exploited than 21% of all known CVEs.

References

Patch1

github.com

Exploit1

github.com

Release Notes1

github.com

Related Vulnerabilities

Other CWE-176 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2026-48618	Medium	6.5	2.5%	-	Fix
CVE-2024-24691	Critical	9.6	1.7%	-	Fix
CVE-2023-39213	Critical	9.6	1.3%	-	Fix
CVE-2024-47611	Unscored	-	0.8%	-	-
CVE-2024-43093	High	7.3	0.7%	KEV	-
CVE-2006-10002	Medium	7.5	0.6%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-07-13.