Is CVE-2026-34179 in the CISA KEV catalog?

No. CVE-2026-34179 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-34179?

CVE-2026-34179 has a CVSS v3 base score of 9.1 (CRITICAL).

What is the EPSS score for CVE-2026-34179?

CVE-2026-34179 has an EPSS score of 0.27% (19th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-34179?

Upgrade incus on debian 13 to 6.0.4-2+deb13u6 or later.

CVE & CISA-KEV Catalog

CVE-2026-34179

CRITICAL

9.1

CVSS v3

NVD

Description

In Canonical LXD versions 4.12 through 6.7, the doCertificateUpdate function in lxd/certificates.go does not validate the Type field when handling PUT/PATCH requests to /1.0/certificates/{fingerprint} for restricted TLS certificate users, allowing a remote authenticated attacker to escalate privileges to cluster admin.

CWE-915

How to fix

Remediation Available

incusDebian

Fixed in:6.0.4-2+deb13u6CVE-2026-34179

Fixed in:6.0.6-3CVE-2026-34179

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 VectorNetwork

Attack ComplexityLow

Privileges RequiredHigh

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.27%probability of exploitation in 30 days

19thpercentile

Low risk: more likely to be exploited than 19% of all known CVEs.

References

Patch1

github.com

Exploit1

github.com

Related Vulnerabilities

Other CWE-915 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2022-4068	Medium	5.4	34%	-	Fix
CVE-2024-5452	Critical	9.8	26%	-	Fix
CVE-2026-30822	High	7.7	13%	-	Fix
CVE-2026-33453	Critical	10.0	6.2%	-	-
CVE-2022-43441	High	8.1	2.4%	-	Fix
CVE-2021-32811	High	7.5	2.3%	-	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 2026-04-22.