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TI-2026-76883 Aliases CVE-2026-86471GHSA-885r-pfpm-ch95

Unvalidated setting in Apache CouchDB allows OS command execution

Priority MEDIUM 43CWE-78Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · Low
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-78.

Summary

Unvalidated runtime configuration values allow OS command injection (CWE-78) in Apache CouchDB 3.5.2 and below on all platforms. A CouchDB server admin can run arbitrary shell commands as the CouchDB operating system user over the network.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

An unvalidated runtime configuration value in Apache CouchDB 3.5.2 and below on all platforms allows a CouchDB server admin to run arbitrary shell commands as the CouchDB operating system user. Users are recommended to upgrade to version 3.5.3, which fixes this issue.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00606 49th percentileScored 2026-11-07
Fix Fixed Apache CouchDB (Apache Software Foundation): 3.5.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ApacheApache CouchDBbefore 3.5.33.5.3Patch availableCNA
  • Apache CouchDB VendorApache Affected before 3.5.3 Fixed in 3.5.3 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:apache:couchdb:*:*:*:*:*:*:*:*——Apache
  • cpe:2.3:a:apache:couchdb:*:*:*:*:*:*:*:* Versions — — ·Apache

Remediation

Upgrade Apache CouchDB to version 3.5.3, which fixes this issue.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

  • Fix · CNA Apache CouchDB (Apache Software Foundation) Fixed in 3.5.3

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Apache CouchDB 3.5.3

    6 records Highest priority Priority MEDIUM 2 MEDIUM, 4 LOW

    Other records, highest priority first

    • TI-2026-76884 Pre-authentication gzip decompression bomb in Apache CouchDBPriority MEDIUM 41
    • TI-2026-76887 Missing authorization in Apache CouchDB exposes prefixed system databasesPriority LOW 38
    • TI-2026-76901 Credential disclosure in Apache CouchDB replication endpointsPriority LOW 30
    Show all 6 records →

Timeline

  1. 2026-10-20 Threatist record created from CVE-2026-86471
  2. 2026-10-20 Weakness changed · CISA ADP
  3. 2026-10-20 CISA SSVC decision points changed
  4. 2026-10-20 Priority changed: MEDIUM → LOW
  5. 2026-10-21 Alias added: GHSA-885r-pfpm-ch95
  6. 2026-10-21 CISA SSVC decision points changed
  7. 2026-10-22 Priority changed: LOW → MEDIUM

References

Advisory 1

Other 1

  • TI-2025-18529 Apache Tomcat: Potential RCE and/or information disclosure and/or information corruption with partial PUT KEVCVSS 3.1CRITICAL 10.0
  • TI-2024-30292 Apache OFBiz: Confused controller-view authorization logic (forced browsing) KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-26062 Apache OFBiz: Unauthenticated endpoint could allow execution of screen rendering code KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-21190 Apache OFBiz: Path traversal leading to RCE KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-18186 Apache HugeGraph-Server: Command execution in gremlin KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-25106 Deserialization of untrusted data in Apache ActiveMQ KEVCVSS 3.1CRITICAL 10.0
See all 4053 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences