CVE-2026-25477
CVE-2026-25477 is a medium-severity vulnerability in Affine with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-601.
Key facts
- Severity: Medium (CVSS 3.x base score 6.1)
- CVSS v4: 6.9
- EPSS exploit prediction: 0% (6th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-9258
- Weakness: CWE-601
- Affected product: Affine
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-2026-25477?
- 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.
- How severe is CVE-2026-25477?
- CVE-2026-25477 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2026-25477 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-25477?
- CVE-2026-25477 affects Affine. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-25477?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-25477 have an EU (EUVD) identifier?
- Yes. CVE-2026-25477 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9258.
- When was CVE-2026-25477 published?
- CVE-2026-25477 was published on 2026-03-02 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:affine:affine:*:*:*:*:-:*:*:*
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