CVE-2026-30942: Flare is a Next.js-based, self-hostable file sharing platform that integrates with screenshot tools

Q: How do I fix CVE-2026-30942?

flare: upgrade to 1.7.3. Exact commands for each OS are on this page.

Q: Is CVE-2026-30942 being exploited?

CVE-2026-30942 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-2026-30942 affect?

CVE-2026-30942 affects flare. Severity is medium (CVSS 6.5). Flare is a Next.js-based, self-hostable file sharing platform that integrates with screenshot tools. Prior to 1.7.3, an authenticated path traversal vulnerability in /api/avatars/[filename] allows any logged-in user to read arbitrary files

Q: How urgent is CVE-2026-30942?

Priority 40/100. Public exploit reference

This month

MEDIUM 6.5UPGRADE

CVE-2026-30942 is a medium-severity flaw (CVSS 6.5) affecting flare. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Flare is a Next.js-based, self-hostable file sharing platform that integrates with screenshot tools. Prior to 1.7.3, an authenticated path traversal vulnerability in /api/avatars/[filename] allows any logged-in user to read arbitrary files from within the application container. The filename URL parameter is passed to path.join() without sanitization, and getFileStream() performs no path validation, enabling %2F-encoded ../ sequences to escape the

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.6% (top 50%)
CISA exploited list	No
Weakness	CWE-22
Published	2026-03-10
Last modified	2026-06-17

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

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

Am I affected?

Timeline

2026-03-10 18:18 UTCPublished CVE record published
2026-06-17 10:33 UTCUpdated Record last modified

flintsh flare UPGRADE

Affected: < 1.7.3

Fixed in: 1.7.3

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 1.7.3 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade flare

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-2026-30942?

flare: upgrade to 1.7.3. Exact commands for each OS are on this page.

Is CVE-2026-30942 being exploited?

CVE-2026-30942 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-2026-30942 affect?

CVE-2026-30942 affects flare. Severity is medium (CVSS 6.5). Flare is a Next.js-based, self-hostable file sharing platform that integrates with screenshot tools. Prior to 1.7.3, an authenticated path traversal vulnerability in /api/avatars/[filename] allows any logged-in user to read arbitrary files

How urgent is CVE-2026-30942?

Priority 40/100. Public exploit reference

Software pages

Next.js vulnerabilities

Related CVEs

CVE-2026-30231 MEDIUM 5.3 UPGRADE Flare is a Next.js-based, self-hostable file sharing platform that integrates with screenshot tools
CVE-2026-30230 HIGH 7.5 UPGRADE Flare is a Next.js-based, self-hostable file sharing platform that integrates with screenshot tools
CVE-2026-26993 MEDIUM 4.6 UPGRADE Flare is a Next.js-based, self-hostable file sharing platform that integrates with screenshot tools

References

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