What’s Vulnerable › Vulnerabilities

CVE-2026-107755: Apache CouchDB: Credential Disclosure to Non-Owner Members via Object-Form Replication Endpoint URLs

• Severity: medium (CVSS 6.0 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-20 · updated 2026-10-20
• Weakness: CWE-200

Description

Insufficient filtering of credentials in the _replicator database in Apache CouchDB 3.5.2 and below on all platforms allows an authenticated user to read replication credentials of other users’ replications, not just their own. Users are recommended to upgrade to version 3.5.3, which fixes this issue.

Affected products

• Apache Software Foundation Apache CouchDB: before 3.5.3 — fixed in 3.5.3

How to fix

Upgrade to a fixed version: Apache Software Foundation Apache CouchDB 3.5.3. Check the vendor advisory for mitigations.

References

• https://lists.apache.org/thread.html/pj83174r8f8f64odf47fwhozbfjtot0f
• https://lists.apache.org/thread/ro57p4r2lhxn2n4712ppx7r11oqq900n
• http://www.openwall.com/lists/oss-security/2026/10/20/16

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