CVE-2026-106510

HIGH

7.7

CVSS v3

Description

Backstage is an open framework for building developer portals. Prior to 1.14.6, the @backstage/plugin-techdocs-node package is affected by remote code execution via crafted markdown_extensions in techdocs mkdocs.yml. An authenticated user who can register catalog entities can provide a crafted mkdocs.yml causing arbitrary OS command execution on the TechDocs build host when the docs are built. This issue is fixed in versions 1.14.6 and 1.15.4.

CWE-183 CWE-470

How to fix

Remediation Available

@backstage/plugin-techdocs-nodenpm

Fixed in:1.15.4GHSA-4488-j8vj-vqqv

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 ComplexityHigh

Privileges RequiredLow

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityLow

AvailabilityLow

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

Exploit Intelligence

0.44%probability of exploitation in 30 days

36thpercentile

Low risk: more likely to be exploited than 36% of all known CVEs.

References

Other references5

Related Vulnerabilities

Other CWE-183 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-25696	High	7.5	2.7%	-	Fix
CVE-2026-21915	Medium	6.7	2.2%	-	Fix
CVE-2020-1694	Medium	4.9	1.6%	-	Fix
CVE-2024-1654	High	7.2	1.3%	-	Fix
CVE-2026-29514	High	8.8	1.1%	-	-
CVE-2023-4399	Medium	6.6	1.1%	-	Fix

Common questions

How do I fix CVE-2026-106510?

Upgrade @backstage/plugin-techdocs-node to 1.15.4 or later.

Is CVE-2026-106510 being actively exploited?

Not that we know of. CVE-2026-106510 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.44% is the estimated probability that it will be exploited in the next 30 days. That is higher than 36% of all scored CVEs.

How severe is CVE-2026-106510?

CVE-2026-106510 has a CVSS v3 base score of 7.7, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2026-106510 affect?

Published advisories record a fix for @backstage/plugin-techdocs-node (npm). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

Embed a live status badge for CVE-2026-106510

Markdown

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HTML

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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 2026-10-07.