CVE-2025-27500: OpenZiti is a free and open source project focused on bringing zero trust to any application

Q: How do I fix CVE-2025-27500?

openziti: upgrade to 3.7.1. Exact commands for each OS are on this page.

Q: Is CVE-2025-27500 being exploited?

CVE-2025-27500 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-2025-27500 affect?

CVE-2025-27500 affects openziti. Severity is high (CVSS 8.2). OpenZiti is a free and open source project focused on bringing zero trust to any application. An endpoint(/api/upload) on the admin panel can be accessed without any form of authentication. This endpoint accepts an HTTP POST to upload a fil

Q: How urgent is CVE-2025-27500?

Priority 39/100. High severity; Remotely exploitable, no login, no user action

Routine

HIGH 8.2REMOTEUPGRADE

CVE-2025-27500 is a high-severity flaw (CVSS 8.2) affecting openziti. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

OpenZiti is a free and open source project focused on bringing zero trust to any application. An endpoint(/api/upload) on the admin panel can be accessed without any form of authentication. This endpoint accepts an HTTP POST to upload a file which is then stored on the node and is available via URL. This can lead to a stored cross site scripting attack if the file uploaded contains malicious code and is then accessed and executed within the conte

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	8.2 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 79%)
CISA exploited list	No
Weakness	CWE-79
Published	2025-03-03
Last modified	2026-06-17

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

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

Am I affected?

Timeline

2025-03-03 19:15 UTCPublished CVE record published
2026-06-17 09:03 UTCUpdated Record last modified

openziti openziti UPGRADE

Affected: < 3.7.1

Fixed in: 3.7.1

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 3.7.1 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade openziti

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-2025-27500?

openziti: upgrade to 3.7.1. Exact commands for each OS are on this page.

Is CVE-2025-27500 being exploited?

CVE-2025-27500 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-2025-27500 affect?

CVE-2025-27500 affects openziti. Severity is high (CVSS 8.2). OpenZiti is a free and open source project focused on bringing zero trust to any application. An endpoint(/api/upload) on the admin panel can be accessed without any form of authentication. This endpoint accepts an HTTP POST to upload a fil

How urgent is CVE-2025-27500?

Priority 39/100. High severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2025-27501 HIGH 8.6 UPGRADE OpenZiti is a free and open source project focused on bringing zero trust to any application

References

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