CVE-2026-26993: Flare is a Next.js-based, self-hostable file sharing platform that integrates with screenshot tools

Q: How do I fix CVE-2026-26993?

flare: upgrade to 1.7.1. Exact commands for each OS are on this page.

Q: Is CVE-2026-26993 being exploited?

CVE-2026-26993 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-2026-26993 affect?

CVE-2026-26993 affects flare. Severity is medium (CVSS 4.6). Flare is a Next.js-based, self-hostable file sharing platform that integrates with screenshot tools. Versions 1.7.0 and below allow users to upload files without proper content validation or sanitization. By embedding malicious JavaScript w

Q: How urgent is CVE-2026-26993?

Priority 27/100. Public exploit reference

Routine

MEDIUM 4.6UPGRADE

CVE-2026-26993 is a medium-severity flaw (CVSS 4.6) 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. Versions 1.7.0 and below allow users to upload files without proper content validation or sanitization. By embedding malicious JavaScript within an SVG (or other active content formats such as HTML or XML), an attacker can achieve script execution in the context of the application's origin when a victim views the file in “raw” mode. This results i

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	4.6 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.3% (top 75%)
CISA exploited list	No
Weakness	CWE-79
Published	2026-02-20
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

2026-02-20 03:16 UTCPublished CVE record published
2026-06-17 10:26 UTCUpdated Record last modified

flintsh flare UPGRADE

Affected: < 1.7.1

Fixed in: 1.7.1

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 1.7.1 (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-2026-26993?

flare: upgrade to 1.7.1. Exact commands for each OS are on this page.

Is CVE-2026-26993 being exploited?

CVE-2026-26993 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-2026-26993 affect?

CVE-2026-26993 affects flare. Severity is medium (CVSS 4.6). Flare is a Next.js-based, self-hostable file sharing platform that integrates with screenshot tools. Versions 1.7.0 and below allow users to upload files without proper content validation or sanitization. By embedding malicious JavaScript w

How urgent is CVE-2026-26993?

Priority 27/100. Public exploit reference

Software pages

Next.js vulnerabilities

Related CVEs

CVE-2026-30942 MEDIUM 6.5 UPGRADE Flare is a Next.js-based, self-hostable file sharing platform that integrates with screenshot tools
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

References

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