CVE-2026-34603: Tina is a headless content management system

Routine

HIGH 7.1UPGRADE

CVE-2026-34603 is a high-severity flaw (CVSS 7.1) affecting tinacms\/cli. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Tina is a headless content management system. Prior to version 2.2.2, @tinacms/cli recently added lexical path-traversal checks to the dev media routes, but the implementation still validates only the path string and does not resolve symlink or junction targets. If a link already exists under the media root, Tina accepts a path like pivot/written-from-media.txt as "inside" the media directory and then performs real filesystem operations through t

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.1 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.4% (top 65%)
CISA exploited list	No
Weakness	CWE-22, CWE-59
Published	2026-04-01
Last modified	2026-06-17

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

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-01 17:28 UTCPublished CVE record published
2026-06-17 10:39 UTCUpdated Record last modified

ssw tinacms\/cli UPGRADE

Affected: <= 2.2.1

Fixed in: newer than 2.2.1

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls tinacmscli

2. UPGRADE to newer than 2.2.1

npm install tinacmscli@">2.2.1"

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-2026-34603?

tinacms\/cli: upgrade to newer than 2.2.1. Exact commands for each OS are on this page.

Is CVE-2026-34603 being exploited?

CVE-2026-34603 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-2026-34603 affect?

CVE-2026-34603 affects tinacms\/cli. Severity is high (CVSS 7.1). Tina is a headless content management system. Prior to version 2.2.2, @tinacms/cli recently added lexical path-traversal checks to the dev media routes, but the implementation still validates only the path string and does not resolve symlin

How urgent is CVE-2026-34603?

Priority 34/100. High severity

Related CVEs

CVE-2026-29066 MEDIUM 6.2 UPGRADE Tina is a headless content management system
CVE-2026-28793 HIGH 8.4 UPGRADE Tina is a headless content management system
CVE-2026-28792 CRITICAL 9.6 UPGRADE Tina is a headless content management system
CVE-2026-28791 HIGH 7.4 UPGRADE Tina is a headless content management system

References

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