CVE-2026-106508: Backstage is an open framework for building developer portals

Q: How do I fix CVE-2026-106508?

backstage plugin-techdocs-node: upgrade to 1.15.4; backstage: upgrade to 1.54.6. Exact commands for each OS are on this page.

Q: Is CVE-2026-106508 being exploited?

CVE-2026-106508 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-106508 affect?

CVE-2026-106508 affects backstage plugin-techdocs-node, backstage. Severity is medium (CVSS 5.3). Backstage is an open framework for building developer portals. Prior to 1.15.4, the @backstage/plugin-techdocs-node package is affected by potential file exposure through local techdocs publisher. When using the local TechDocs publisher (te

Q: How urgent is CVE-2026-106508?

Priority 32/100. On your watchlist

Routine

MEDIUM 5.3WATCHLISTUPGRADEUPGRADE

CVE-2026-106508 is a medium-severity flaw (CVSS 5.3) affecting backstage plugin-techdocs-node, backstage. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Backstage is an open framework for building developer portals. Prior to 1.15.4, the @backstage/plugin-techdocs-node package is affected by potential file exposure through local techdocs publisher. When using the local TechDocs publisher (techdocs.publisher.type: 'local'), it was possible for the documentation serving endpoint to follow filesystem references outside the intended documentation tree, potentially exposing host files to authenticated

Why this priority

On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.4% (top 67%)
CISA exploited list	No
Weakness	CWE-22, CWE-59
Published	2026-10-06
Last modified	2026-10-09

Publisher (CNA): GitHub, Inc. · Vendor: linuxfoundation

Last updated 2026-10-09 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-10-06 22:17 UTCPublished CVE record published
2026-10-09 17:44 UTCUpdated Record last modified

linuxfoundation backstage plugin-techdocs-node UPGRADE

Affected: < 1.15.4

Fixed in: 1.15.4

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy backstage-plugin-techdocs-node || rpm -q backstage-plugin-techdocs-node || backstage-plugin-techdocs-node --version

2. UPGRADE to 1.15.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade backstage-plugin-techdocs-node

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade backstage-plugin-techdocs-node

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

linuxfoundation backstage UPGRADE

Affected: < 1.54.6

Fixed in: 1.54.6

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 1.54.6 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade backstage

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade backstage

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2026-106508?

backstage plugin-techdocs-node: upgrade to 1.15.4; backstage: upgrade to 1.54.6. Exact commands for each OS are on this page.

Is CVE-2026-106508 being exploited?

CVE-2026-106508 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-2026-106508 affect?

CVE-2026-106508 affects backstage plugin-techdocs-node, backstage. Severity is medium (CVSS 5.3). Backstage is an open framework for building developer portals. Prior to 1.15.4, the @backstage/plugin-techdocs-node package is affected by potential file exposure through local techdocs publisher. When using the local TechDocs publisher (te

How urgent is CVE-2026-106508?

Priority 32/100. On your watchlist

Related CVEs

CVE-2026-106455 HIGH 7.7 UPGRADE UPGRADE Backstage is an open framework for building developer portals
CVE-2026-106505 HIGH 7.7 UPGRADE UPGRADE Backstage is an open framework for building developer portals
CVE-2026-106507 MEDIUM 5.3 UPGRADE UPGRADE Backstage is an open framework for building developer portals
CVE-2026-106509 HIGH 7.7 UPGRADE UPGRADE Backstage is an open framework for building developer portals

References

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