CVE-2026-54981: Inclusion of functionality from untrusted control sphere in Visual Studio Code - Python extension allows an un

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HIGH 7.8WATCHLISTMITIGATE

CVE-2026-54981 is a high-severity flaw (CVSS 7.8) affecting python. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Inclusion of functionality from untrusted control sphere in Visual Studio Code - Python extension allows an unauthorized attacker to bypass a security feature locally.

Why this priority

High severity
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.5% (top 61%)
CISA exploited list	No
Weakness	CWE-693, CWE-829
Published	2026-08-11
Last modified	2026-10-23

Publisher (CNA): Microsoft Corporation · Vendor: microsoft

Last updated 2026-10-23 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-08-11 17:18 UTCPublished CVE record published
2026-10-23 19:10 UTCUpdated Record last modified

microsoft python MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy python || rpm -q python || python --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

Exact fixes by distribution

A distro patch exists: prefer upgrading over downgrading.

Fedora 46 · clementine · FIXED · 1.4.2-1.fc46 · FEDORA-2026-3e748ef4d3 · source

sudo dnf upgrade --advisory=FEDORA-2026-3e748ef4d3

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-54981?

python: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-54981 being exploited?

CVE-2026-54981 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-54981 affect?

CVE-2026-54981 affects python. Severity is high (CVSS 7.8). Inclusion of functionality from untrusted control sphere in Visual Studio Code - Python extension allows an unauthorized attacker to bypass a security feature locally.

How urgent is CVE-2026-54981?

Priority 42/100. High severity; On your watchlist

Software pages

Python vulnerabilities · Visual Studio vulnerabilities

References

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