CVE-2026-25477: AFFiNE is an open-source, all-in-one workspace and an operating system

Q: How do I fix CVE-2026-25477?

affine: upgrade to 0.26.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-25477 being exploited?

CVE-2026-25477 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-2026-25477 affect?

CVE-2026-25477 affects affine. Severity is medium (CVSS 6.1). AFFiNE is an open-source, all-in-one workspace and an operating system. Prior to version 0.26.0, there is an Open Redirect vulnerability located at the /redirect-proxy endpoint. The flaw exists in the domain validation logic, where an impro

Q: How urgent is CVE-2026-25477?

Priority 24/100. No elevated risk signals yet.

Routine

MEDIUM 6.1UPGRADE

CVE-2026-25477 is a medium-severity flaw (CVSS 6.1) affecting affine. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

AFFiNE is an open-source, all-in-one workspace and an operating system. Prior to version 0.26.0, there is an Open Redirect vulnerability located at the /redirect-proxy endpoint. The flaw exists in the domain validation logic, where an improperly anchored Regular Expression allows an attacker to bypass the whitelist by using malicious domains that end with a trusted string. This issue has been patched in version 0.26.0.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.2% (top 90%)
CISA exploited list	No
Weakness	CWE-601
Published	2026-03-02
Last modified	2026-06-17

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

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

Am I affected?

Timeline

2026-03-02 20:16 UTCPublished CVE record published
2026-06-17 10:24 UTCUpdated Record last modified

affine affine UPGRADE

Affected: < 0.26.0

Fixed in: 0.26.0

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 0.26.0 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade affine

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-2026-25477?

affine: upgrade to 0.26.0. Exact commands for each OS are on this page.

Is CVE-2026-25477 being exploited?

CVE-2026-25477 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-2026-25477 affect?

CVE-2026-25477 affects affine. Severity is medium (CVSS 6.1). AFFiNE is an open-source, all-in-one workspace and an operating system. Prior to version 0.26.0, there is an Open Redirect vulnerability located at the /redirect-proxy endpoint. The flaw exists in the domain validation logic, where an impro

How urgent is CVE-2026-25477?

Priority 24/100. No elevated risk signals yet.

Related CVEs

CVE-2026-21853 HIGH 8.8 UPGRADE AFFiNE is an open-source, all-in-one workspace and an operating system

References

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